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CN210400713U - Gas pressure gauge is detection device in batches - Google Patents

Gas pressure gauge is detection device in batches Download PDF

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Publication number
CN210400713U
CN210400713U CN201921729421.2U CN201921729421U CN210400713U CN 210400713 U CN210400713 U CN 210400713U CN 201921729421 U CN201921729421 U CN 201921729421U CN 210400713 U CN210400713 U CN 210400713U
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CN
China
Prior art keywords
bottle
pipe
air
accurate
gas cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201921729421.2U
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Chinese (zh)
Inventor
刘健
张丽梅
刘燕娴
刘玉冰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kaide Instrument Shenzhen Co Ltd
Original Assignee
Kaide Instrument Shenzhen Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201921729421.2U priority Critical patent/CN210400713U/en
Application granted granted Critical
Publication of CN210400713U publication Critical patent/CN210400713U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a gaseous pressure gauge is detection device in batches, it includes the workstation, the workstation level sets up, the bottom of workstation is provided with the air pump, the top of workstation is provided with the gas cylinder, be provided with the gas-supply pipe between gas cylinder and the air pump, gas-supply pipe one end and air pump fixed connection, the other end and air pump fixed connection, the gas cylinder passes through gas-supply pipe and air pump intercommunication, gas cylinder one end is provided with the standard component, be provided with the standard pipe between standard component and the gas cylinder, the both ends of standard pipe respectively with gas cylinder and standard component fixed connection, the gas cylinder passes through standard pipe and standard component intercommunication, the one end fixedly connected with communicating pipe of standard component is kept away from to the gas cylinder, communicating pipe and gas cylinder intercommunication, a plurality of test tube of communicating pipe fixedly connected with, the one end of every test tube all communicates with. The utility model discloses well pressure gauge to dispatch from the factory detects, has the effect that promotes the accuracy of pressure gauge postdelivery testing result.

Description

Gas pressure gauge is detection device in batches
Technical Field
The utility model belongs to the technical field of the technique of instrument manufacturing and specifically relates to a gas pressure gauge is detection device in batches is related to.
Background
When the pressure in the closed container is measured, a gas pressure gauge is generally selected, and the gas pressure gauge generally refers to an instrument for measuring the gas pressure, namely the pressure, and is sometimes called as a gas pressure gauge.
The existing gas pressure gauge comprises a pressure gauge body and an access pipe, wherein a measuring device is fixedly connected inside the pressure gauge body, a display screen is fixedly connected to the side wall of the pressure gauge body, the access pipe is fixedly connected with the pressure gauge body, and the access pipe is communicated with the measuring device inside the pressure gauge body. Utilize the connecting pipe to communicate the access pipe of connecting pipe and pressure gauge when using the pressure gauge to measure, utilize this internal measuring device of pressure gauge to measure, then the measuring result shows on the display screen, carries out reading of gas pressure through the display screen.
The above prior art solutions have the following drawbacks: the pressure gauge has an error in production and processing in a factory, and the detection result is inaccurate when the pressure gauge is detected after leaving the factory.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas pressure gauge is detection device in batches detects the pressure gauge that dispatches from the factory, reaches the purpose that promotes the accuracy of pressure gauge postdelivery testing result.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a gaseous pressure gauge is detection device in batches, pressure device includes the workstation, the workstation level sets up, the bottom of workstation is provided with the air pump, the top of workstation is provided with the gas cylinder, be provided with the gas-supply pipe between gas cylinder and the air pump, gas-supply pipe one end and gas cylinder fixed connection, the other end and air pump fixed connection, the gas cylinder passes through gas-supply pipe and air pump intercommunication, gas cylinder one end is provided with the standard component, be provided with the standard pipe between standard component and the gas cylinder, the both ends of standard pipe respectively with gas cylinder and standard component fixed connection, the gas cylinder passes through standard pipe and standard component intercommunication, the one end fixedly connected with communicating pipe of standard component is kept away from to the gas cylinder, communicating pipe and gas cylinder intercommunication, a plurality of test tube of communicating pipe fixedly connected with, the one end of every test tube all.
By adopting the technical scheme, when the measuring device is used for measuring, the detecting piece is firstly communicated with the testing pipe, then the air pump is started to inflate the air bottle through the air delivery pipe, the air flows to the standard piece through the standard pipe after entering the air bottle, the other part flows to the detecting piece through the communicating pipe and the testing pipe, the air pressure in the air bottle is read through the standard piece, when the air pressure reaches the testing range of the detecting piece, the air pump is closed, the readings of the standard piece and the detecting piece are read, when the readings of the standard piece and the detecting piece are within the error range, namely, the detecting piece belongs to a qualified product, when the difference between the readings of the detecting piece and the standard piece is larger, the detecting piece is a unqualified product, the detecting is carried out again after debugging is carried out again, because the communicating pipe is connected with a plurality of testing pipes, each testing pipe can be connected with the detecting piece, the batch testing is carried out, the testing, the purpose of improving the accuracy of the detection result of the pressure gauge after leaving the factory is achieved.
The utility model discloses further set up to: the gas cylinder includes first bottle and second bottle, the top at the workstation is placed to the equal level of first bottle and second bottle, be provided with the connecting pipe between first bottle and the second bottle, the connecting pipe both ends respectively with first bottle and second bottle fixed connection, through the connecting pipe intercommunication between first bottle and the second bottle, communicating pipe is provided with two, two communicating pipe respectively with first bottle and second bottle fixed connection, first bottle passes through standard pipe and standard component intercommunication, first bottle passes through gas-supply pipe and air pump intercommunication, the second bottle is connected with accurate subassembly.
By adopting the technical scheme, the gas cylinder is divided into the first cylinder and the second cylinder, and the first cylinder is communicated with the second cylinder through the connecting pipe, so that the first cylinder and the second cylinder are more stably placed at the top end of the workbench; the accurate subassembly that the second bottle is connected is recycled simultaneously and is checked standard part and detection piece, avoids the standard part error to appear, leads to the testing result inaccurate, and after gas got into first bottle through the gas-supply pipe, then through connecting tube flow to the second bottle in, then flowed to accurate subassembly from the second bottle, carries out further verification, promotes detection device's accuracy.
The utility model discloses further set up to: accurate subassembly includes accurate pipe, accurate valve and accurate piece, and the one end fixed connection of communicating pipe is kept away from to accurate valve and second bottle, and accurate valve and second gas cylinder intercommunication, accurate pipe both ends are respectively in accurate valve and accurate fixed connection, and the second bottle is through accurate valve and accurate pipe and accurate piece intercommunication.
Through adopting above-mentioned technical scheme, when using accurate subassembly to connect standard component and detection piece, at first rotate accurate valve, make accurate pipe and accurate intercommunication, gas in the second gas cylinder flows to accurate piece through accurate pipe, through the registration of observing accurate piece, the registration of standard component and detection piece, the three is qualified product promptly of error range, rotate accurate valve when detecting the preceding punching press and prevent accurate pipe and second gas cylinder intercommunication, the monitoring range of avoiding filling pressure to exceed accurate piece, cause the damage to accurate piece, promote the life of accurate piece.
The utility model discloses further set up to: the gas transmission pipe is fixedly connected with an air pressure regulating valve, and the air pressure regulating valve is arranged close to the first bottle.
By adopting the technical scheme, the gas conveying pipe is provided with the air pressure regulating valve, the air pressure in the gas cylinder is regulated by the air pressure regulating valve, and the convenience in regulating the air pressure is improved; the setting of air pressure regulating valve is being close to first bottle department, makes air regulating valve be located the top of workstation, promotes the convenience when using air regulating valve.
The utility model discloses further set up to: communicating pipe is provided with adjusting part, and adjusting part includes main regulating valve and branch regulating valve, and main regulating valve and branch regulating valve and communicating pipe fixed connection, main regulating valve are close to the gas cylinder setting, and the gas cylinder setting is kept away from to the branch regulating valve.
By adopting the technical scheme, when one batch of detection parts is detected and then another batch of detection parts is replaced, the main regulating valve and the sub-regulating valves are rotated, so that the whole communicating pipe is not communicated with the gas cylinder, the gas pressure in the gas cylinder is prevented from completely escaping when the detection parts are replaced, then the detection parts at the end of the testing pipe are replaced, and then a little gas pressure is supplemented into the gas cylinder; when detecting few detection pieces, rotate the branch regulating valve and make the branch regulating valve prevent that the communicating pipe that the branch regulating valve kept away from one side of gas cylinder from with the gas cylinder intercommunication, only carry out the detection of detection piece at the test pipe of the regional connection of communicating pipe between main regulating valve and the branch regulating valve, flexibility when promotion detection device used.
The utility model discloses further set up to: the one end that communicating pipe was kept away from to the test tube is provided with the shutoff stopper, and the one end grafting cooperation of keeping away from communicating pipe is stopped up with the test tube, and when the shutoff stopper was located the test tube, the inner wall butt of shutoff stopper and test tube.
By adopting the technical scheme, when a single detection piece is detected, the sub-adjustment valves are rotated to close the communication pipes far away from the gas cylinder, one test pipe in a detection area between the sub-adjustment valves and the main adjustment valve is selected to be connected with the detection piece, the rest test pipes are plugged and blocked, the test pipes are blocked by the blocking plugs, then the main adjustment valve is opened to detect the single detection piece, and the flexibility of the detection device during use is further improved.
The utility model discloses further set up to: the circumferential side wall of the sealing plug abutted to the test tube is provided with anti-skid grains.
Through adopting above-mentioned technical scheme, the friction coefficient between jam and the test tube is sealed in the promotion of anti-skidding line, promotes the frictional force between jam and the test tube, promotes the stability of shutoff stopper in the test tube.
The utility model discloses further set up to: the sealing plug is made of rubber.
By adopting the technical scheme, the rubber material is utilized to have the property of deformation, so that the rubber plug completely seals the test tube, and the sealing property of the sealing plug on the test tube is improved.
To sum up, the utility model discloses a beneficial technological effect does:
1. the gas cylinder, the gas pump and the standard part are arranged, so that the pressure gauge leaving the factory is detected, and the aim of improving the accuracy of a detection result of the pressure gauge leaving the factory is fulfilled;
2. the standard part and the detection part are checked by arranging the precision part, so that the accuracy of the detection device in detection is improved;
3. through setting up adjusting part, the convenience when promoting detection device and using.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram intended to show a test assembly.
In the figure, 1, a workbench; 11. an air pump; 12. a gas cylinder; 121. a first bottle; 122. a second bottle; 13. a gas delivery pipe; 131. an air pressure regulating valve; 14. a connecting pipe; 15. a detection member; 2. a precision component; 21. a precision tube; 22. a precision valve; 23. a precision part; 3. an adjustment assembly; 31. a main regulator valve; 32. a sub-regulator valve; 4. blocking; 41. anti-skid lines; 5. a standard component; 51. a standard pipe; 52. a standard component; 6. testing the component; 61. a communicating pipe; 62. and (6) testing the tube.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a batch detection device for gas pressure gauges, which is disclosed by the present invention, comprises a workbench 1, wherein the workbench 1 is horizontally arranged, an air pump 11 is arranged at the bottom end of the workbench 1, an air bottle 12 is arranged at the top end of the workbench 1, the air bottle 12 comprises a first bottle 121 and a second bottle 122, the first bottle 121 and the second bottle 122 are both horizontally arranged at the top end of the workbench 1, a connecting pipe 14 is arranged between the first bottle 121 and the second bottle 122, two connecting pipes 14 are arranged, two ends of the two connecting pipes 14 are respectively fixedly connected with the first bottle 121 and the second bottle 122, the first bottle 121 is communicated with the second bottle 122 through the two connecting pipes 14, an air delivery pipe 13 is arranged between the first bottle 121 and the air pump 11, two ends of the air delivery pipe 13 are respectively fixedly connected with the air pump 11 and the first bottle 121, the first bottle 121 is communicated with the air pump 11 through the air delivery pipe 13, an air pressure regulating valve 131 is fixedly connected at a position of the air, one end of the first bottle 121 close to the gas conveying pipe 13 is provided with a standard component 5, one ends of the first bottle 121 and the second bottle 122 far away from the standard component 5 are provided with a plurality of detection pieces 15, a test component 6 is arranged between the detection pieces 15 and the first bottle 121 and the second bottle 122, and one end of the second bottle 122 far away from the test component 6 is provided with a precision component 2. The pressure gauge leaving factory is detected, and the purpose of improving the accuracy of the detection result of the pressure gauge leaving factory is achieved. When the pressure gauge was ready to dispatch from the factory, place the pressure gauge of taking out as detection piece 15 on workstation 1, through determine module and gas cylinder 12 intercommunication, then start air pump 11, adjust the pressure in the gas cylinder 12 through gas control valve, then test the precision of detection piece 15 through standard subassembly 5 and accurate subassembly 2, detect through the pressure gauge to dispatching from the factory, reach the purpose that promotes the accuracy of pressure gauge post-factory testing result.
Referring to fig. 1, the standard module 5 includes a standard 52 and a standard pipe 51, the standard 52 is disposed at one end of the first bottle 121 close to the gas pipe 13, the standard pipe 51 is disposed between the standard 52 and the first bottle 121, one end of the standard pipe 51 is fixedly connected to the first bottle 121, the other end is fixedly connected to the standard 52, and the first bottle 121 is communicated with the standard 52 through the standard pipe 51. The air pressure passes through the standard pipe 51 to the standard part 52, then the display number of the display screen of the standard part 52 is read and checked with the display number of the detection part 15, the qualified product is obtained within the allowable error range, and the unqualified product is obtained when the error range is exceeded.
Referring to fig. 1, accurate subassembly 2 includes accurate pipe 21, accurate valve 22 and accurate 23, and the one end fixed connection who communicates pipe 61 is kept away from to accurate valve 22 and second bottle 122, and accurate valve 22 and second gas cylinder 12 intercommunication, accurate pipe 21 both ends respectively in accurate valve 22 and accurate 23 fixed connection, and second bottle 122 is through accurate valve 22 and accurate pipe 21 and accurate 23 intercommunication. When the atmospheric pressure in gas cylinder 12 is stable, rotate accurate valve 22 and make the atmospheric pressure in the second bottle 122 pass through accurate pipe 21 to accurate 23 departments, the registration through accurate 23 reads atmospheric pressure, then checks with standard component 52 and detection piece 15, promotes detection device's accurate nature.
Referring to fig. 1 and 2, the testing assembly 6 includes a communication pipe 61 and two testing pipes 62, the communication pipe 61 is provided with two, a first bottle 121 and a second bottle 122 are both fixedly connected with the communication pipe 61, each communication pipe 61 is provided with an adjusting assembly 3, the adjusting assembly 3 includes a main adjusting valve 31 and a sub adjusting valve 32, the main adjusting valve 31 and the sub adjusting valve 32 are both fixedly connected with the communication pipe 61, the main adjusting valve 31 is arranged near the gas cylinder 12, the sub adjusting valve 32 is arranged far away from the gas cylinder 12, the testing pipes 62 are provided with a plurality of testing pipes 62, each testing pipe 62 is fixedly connected with the communication pipe 61, each testing pipe 62 is communicated with the gas cylinder 12 through the communication pipe 61, one end of each testing pipe 62 is communicated with the communication pipe 61, the other end of the testing pipe 62 can be in plugging fit with the testing piece 15, the diameter of the testing pipe 62 communicated with the second bottle 122 is larger than that of the testing pipe 62 communicated with the first bottle 121, when the testing pipe 62, the one end that communicating pipe 61 was kept away from to test tube 62 is provided with shutoff stopper 4, and shutoff stopper 4 is pegged graft with the one end that test tube 62 kept away from communicating pipe 61 and is cooperated, and shutoff stopper 4 and the inner wall butt of test tube 62, the circumference lateral wall of shutoff stopper 4 and test tube 62 butt are provided with anti-skidding line 41, and shutoff stopper 4 is the shutoff stopper 4 that the rubber material made. When a plurality of detection pieces 15 are tested, detection is carried out in batches, each test tube 62 is connected with the detection piece 15, and then the main regulating valve 31 and the sub regulating valves 32 are opened to carry out detection on the detection pieces 15; when detecting a few detecting parts 15, firstly connecting the detecting parts 15 with the detecting pipes 62 of the communicating pipe 61 near the area of the gas cylinder 12, and then opening the main regulating valve 31 and closing the sub regulating valves 32; when a single detection piece 15 is detected, one test tube 62 of the communication tube 61 close to the area of the gas cylinder 12 is communicated with the single detection piece 15, the other test tubes 62 are all inserted into the blocking plugs 4, then the main regulating valve 31 is opened, the sub-regulating valves 32 are closed, and the single detection piece 15 is detected.
The implementation principle of the embodiment is as follows: when the testing device is used for detecting the detecting piece 15, firstly, the air pump 11 is started, then the air regulating valve is regulated, the first bottle 121 is punched, the flushed pressure enters the second bottle 122 through the connecting pipe 14, then, the pressure in the air bottle 12 is read through the standard piece 52, when the pressure in the air bottle 12 is in the range of the detecting piece 15, the air regulating valve is closed, then, the accurate valve 22 is opened to read the indication number of the accurate piece 23, the indication numbers of the accurate piece 23 and the standard piece 52 are checked, when the indication numbers of the accurate piece 23 and the standard piece 52 are in the error range, the detecting piece 15 and one end of the testing pipe 62 far away from the communicating pipe 61 are in plug fit, then, the main adjusting valve 31 and the sub adjusting valve 32 are opened to enable the pressure in the air bottle 12 to be communicated with the detecting piece 15 through the communicating pipe 61 and the testing pipe 62, finally, the indication numbers of the detecting piece 15, the standard piece 52 and the accurate piece 23 are read, whether the indication numbers of the three, when a small number of detection pieces 15 are detected, detection is performed in the area where the communication pipe 61 is close to the gas cylinder 12 after the partial adjustment valve 32 is closed; when detecting a single detection piece 15, at first with detection piece 15 and a test tube 62 intercommunication, then with shutoff stopper 4 with do not connect test tube 62 grafting cooperation of detection piece 15, then rotate total adjusting valve 31 and detect a single detection piece 15, to sum up, through the above-mentioned step, detect the pressure gauge of dispatching from the factory, reach the purpose that promotes the accuracy of pressure gauge post-dispatching test result.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a gas pressure gauge batch detection device which characterized in that: the detection device comprises a workbench (1), the workbench (1) is horizontally arranged, an air pump (11) is arranged at the bottom end of the workbench (1), an air bottle (12) is arranged at the top end of the workbench (1), an air conveying pipe (13) is arranged between the air bottle (12) and the air pump (11), one end of the air conveying pipe (13) is fixedly connected with the air bottle (12), the other end of the air conveying pipe is fixedly connected with the air pump (11), the air bottle (12) is communicated with the air pump (11) through the air conveying pipe (13), a standard part (52) is arranged at one end of the air bottle (12), a standard pipe (51) is arranged between the standard part (52) and the air bottle (12), two ends of the standard pipe (51) are respectively and fixedly connected with the air bottle (12) and the standard part (52), the air bottle (12) is communicated with the standard part (52) through the standard pipe (51), and one end of the air, communicating pipe (61) and gas cylinder (12) intercommunication, communicating pipe (61) fixedly connected with a plurality of test tube (62), the one end of every test tube (62) all communicates with communicating pipe (61), and the other end is connected with detects piece (15), detects piece (15) and test tube (62) cooperation of pegging graft.
2. The apparatus of claim 1, wherein: the gas cylinder (12) comprises a first bottle (121) and a second bottle (122), the first bottle (121) and the second bottle (122) are placed on the top end of the workbench (1) in an equal horizontal mode, a connecting pipe (14) is arranged between the first bottle (121) and the second bottle (122), two ends of the connecting pipe (14) are fixedly connected with the first bottle (121) and the second bottle (122) respectively, the first bottle (121) is communicated with the second bottle (122) through the connecting pipe (14), two communicating pipes (61) are arranged, the two communicating pipes (61) are fixedly connected with the first bottle (121) and the second bottle (122) respectively, the first bottle (121) is communicated with a standard part (52) through a standard pipe (51), the first bottle (121) is communicated with an air pump (11) through an air conveying pipe (13), and the second bottle (122) is connected with an accurate assembly (2).
3. The apparatus of claim 2, wherein: accurate subassembly (2) are including accurate pipe (21), accurate valve (22) and accurate (23), and the one end fixed connection of communicating pipe (61) is kept away from with second bottle (122) to accurate valve (22), and accurate valve (22) and second gas cylinder (12) intercommunication, accurate pipe (21) both ends are respectively in accurate valve (22) and accurate (23) fixed connection, and second bottle (122) are through accurate valve (22) and accurate pipe (21) and accurate (23) intercommunication.
4. The apparatus of claim 2, wherein: the air delivery pipe (13) is fixedly connected with an air pressure regulating valve (131), and the air pressure regulating valve (131) is arranged close to the first bottle (121).
5. The apparatus of claim 1, wherein: communicating pipe (61) is provided with adjusting part (3), and adjusting part (3) include main regulating valve (31) and branch regulating valve (32), and main regulating valve (31) and branch regulating valve (32) and communicating pipe (61) fixed connection, and main regulating valve (31) are close to gas cylinder (12) and set up, and branch regulating valve (32) are kept away from gas cylinder (12) and are set up.
6. The apparatus of claim 1, wherein: one end of the test tube (62) far away from the communicating tube (61) is provided with a sealing plug (4), the sealing plug (4) is in plug-in fit with one end of the test tube (62) far away from the communicating tube (61), and when the sealing plug (4) is located in the test tube (62), the sealing plug (4) is abutted to the inner wall of the test tube (62).
7. The apparatus of claim 6, wherein: the circumferential side wall of the sealing plug (4) abutted against the test tube (62) is provided with anti-slip lines (41).
8. The apparatus of claim 6, wherein: the sealing plug (4) is made of rubber materials (4).
CN201921729421.2U 2019-10-15 2019-10-15 Gas pressure gauge is detection device in batches Expired - Fee Related CN210400713U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921729421.2U CN210400713U (en) 2019-10-15 2019-10-15 Gas pressure gauge is detection device in batches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921729421.2U CN210400713U (en) 2019-10-15 2019-10-15 Gas pressure gauge is detection device in batches

Publications (1)

Publication Number Publication Date
CN210400713U true CN210400713U (en) 2020-04-24

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ID=70342207

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921729421.2U Expired - Fee Related CN210400713U (en) 2019-10-15 2019-10-15 Gas pressure gauge is detection device in batches

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CN (1) CN210400713U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116793573A (en) * 2023-08-21 2023-09-22 苏州中电科启计量检测技术有限公司 Pressure gauge detection platform for multipath synchronous verification
WO2024050888A1 (en) * 2022-09-05 2024-03-14 台湾积体电路制造股份有限公司 Testing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024050888A1 (en) * 2022-09-05 2024-03-14 台湾积体电路制造股份有限公司 Testing device
CN116793573A (en) * 2023-08-21 2023-09-22 苏州中电科启计量检测技术有限公司 Pressure gauge detection platform for multipath synchronous verification
CN116793573B (en) * 2023-08-21 2023-11-28 苏州中电科启计量检测技术有限公司 Pressure gauge detection platform for multipath synchronous verification

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200424

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