CN201130163Y - Oil liquid quality detector - Google Patents
Oil liquid quality detector Download PDFInfo
- Publication number
- CN201130163Y CN201130163Y CNU2007201260247U CN200720126024U CN201130163Y CN 201130163 Y CN201130163 Y CN 201130163Y CN U2007201260247 U CNU2007201260247 U CN U2007201260247U CN 200720126024 U CN200720126024 U CN 200720126024U CN 201130163 Y CN201130163 Y CN 201130163Y
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- 239000007788 liquid Substances 0.000 title 1
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000004088 simulation Methods 0.000 claims abstract description 6
- 238000012360 testing method Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The utility model discloses an oil quality detecting device, which comprises a power supply portion, an A/D switch, a microcomputer, a detecting circuit, a detecting control interface, an LCD display and a printer interface circuit, wherein the detecting circuit comprises capacitor sensors of standard oil detection and detected oil and an alternating signal source of the capacitor sensor, the power supply portion adopts a double-purpose power supply of alternating current and direct current, and the both adopt a relay J C to switch, and the output of the power supply is divided into three paths, one path is connected with a cell detecting circuit, one path is directly used to provide power supply for all electric components in a simulation system of the detecting circuit, and the other path is used to provide power for the A/D switch through a three-end stabilizer and a filter circuit. The device has simple operation, fast detection, direct-view detecting effect, high detecting accuracy and sensitivity, excellent consistency and full intelligence, and is provided with a special printer interface and an LCD display interface, adopts the double-purpose power supply of alternating current and direct current, and can conduct the reversal charge for cell when power is used.
Description
Technical field
The utility model relates to oil quality detection technique field, especially relates to a kind of oil quality pick-up unit.
Background technology
In production, transportation and the storage process of lubricating oil itself, some pollution problems can occur inevitably, thereby before using, oil quality be detected most important.At present, all there are problems such as repeatability is relatively poor, sensitivity is on the low side in the oil quality pick-up unit great majority of use, need each component units in the device, circuit connecting relation etc. are done to improve further.A kind of oil quality pick-up unit was disclosed among the disclosed utility model patent CN2478102Y on February 20th, 2002, the testing circuit of this pick-up unit comprises the capacitor and inductor bridge circuit and provides the ac signal which of AC signal for it, its detection sensitivity is higher, consistance is better, is necessary disclosed oil quality pick-up unit is improved further and optimizes.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of oil quality pick-up unit is provided, this pick-up unit adopts the AC and DC double-purpose electric source, and can be fast, accurately detect accuracy of detection height, high conformity.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of oil quality pick-up unit, comprise power pack 1, A/D converter 2, single-chip microcomputer 3, testing circuit 4, detect control interface 7, LCD display 5 and printer interface 6, wherein testing circuit 4 comprises measurement standard oil and the capacitive transducer of measured oil and the ac signal which of capacitive transducer, adopt in the described power pack 1 and hand over, the DC dual-purpose power supply, adopt relay J C to switch between the two, the output of its power pack 1 divides three the tunnel, one the tunnel connects the battery detection circuit that is detected by single-chip microcomputer 3, one the tunnel directly for each electricity consumption device of the simulation system in the testing circuit 4 provides power supply, and another road is A/D converter 2 power supplies behind three terminal regulator and filtering circuit.
As a kind of preferred version of the present utility model, described relay J C is a normally closed relay, and it is serially connected in the output circuit of direct supply, the output terminal of the normally closed termination direct supply of relay J C, another termination ac power output, ac power output is connected to charging circuit simultaneously.
As another kind of preferred version of the present utility model, described AC power comprises 9V and 15V two-way AC power, wherein the 9V alternating current is exported behind forward diode D11, and the 15V alternating current connects dc power output end behind three terminal regulator LM317, resistance R 10 and forward diode D9; Relay J C is serially connected in the output circuit of direct supply, the output terminal of normally closed termination direct supply, another termination 9V ac power output; Direct supply is exported behind relay J C, forward diode D10.
As another preferred version of the present utility model, the output of described power pack 1 divides three the tunnel, one the tunnel connects battery detection circuit after resistance R 11, R9 dividing potential drop, one the tunnel through directly providing power supply for each electricity consumption device of the simulation system in the testing circuit 4 after the inductance L 2, another road is divided into two branch roads behind inductance L 1, three terminal regulator 7805, one branch road connects the power end of A/D converter (2) behind filtering circuit, another branch road is that A/D converter (2) provides an accurate voltage by chip MC1403, potentiometer W1.
As another preferred version of the present utility model, described battery detection circuit is a master chip with two operational amplifier LM393, the normal phase input end of the WR termination LM393A of single-chip microcomputer 3, voltage of exporting after resistance R 11, R9 dividing potential drop and the output signal of LM393A connect homophase and the inverting input of LM393B respectively, and the output of LM393B connects the RD end of single-chip microcomputer 3.
To sum up, adopt a kind of oil quality pick-up unit of the utility model, have the following advantages: 1, easy and simple to handle, detection effect intuitive display; 2, detect fast; 3, accuracy of detection and sensitivity height, high conformity; 4, structure economics, reasonable, the AC and DC power supply is dual-purpose, and is using simultaneously and can continue charging to battery; 5, full intellectualized, dispose special-purpose printer interface and LCD display interface, in detection with testing result accurately, show synchronously and print.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model power pack.
Description of reference numerals:
The 1-power pack; The 2-A/D converter; The 3-single-chip microcomputer;
The 4-testing circuit; The 5-LCD display; The 6-printer interface;
7-detects control interface.
Embodiment
As shown in Figure 1, described oil quality pick-up unit, comprise power pack 1, A/D converter 2, single-chip microcomputer 3, testing circuit 4, detect control interface 7, LCD display 5 and printer interface 6, wherein testing circuit 4 comprises measurement standard oil and the capacitive transducer of measured oil and the ac signal which of capacitive transducer.Power pack 1 after processing such as filtering circuit, is respectively other parts power supplies with power supply.Testing circuit 4 after comparison, amplification and Filtering Processing, is transported to the signal input part of A/D converter 2 with the standard oil that collects and measured oil two-way sensor signal.Single-chip microcomputer 3 will be after the digital signal internal arithmetic after A/D converter 2 conversions be handled, transmit corresponding steering order to LCD display 5 and printer interface 6 respectively, LCD display 5 fast, in time testing result is shown, and printer prints testing result synchronously.Single-chip microcomputer 3 connects and detects control interface 7 simultaneously, by detecting the soiling value parameter type that control interface 7 is provided with needs mensuration.
As shown in Figure 2, adopt the AC and DC double-purpose electric source in the power pack 1 of described oil quality pick-up unit, adopt relay J C to switch between the two, the output of its power pack 1 divides three the tunnel, and described relay J C is a normally closed relay, and it is serially connected in the output circuit of direct supply, described AC power comprises 9V and 15V two-way AC power, the 3rd termination 9V ac power output of relay J C, the output terminal of normal-closed end the 8th termination direct supply, the 6th end ground connection.Thereby when using the 9V AC-powered, by relay J C action, direct current is disconnected.Its 9V alternating current is output as other electricity consumptions of whole detection device and partly powers behind forward diode D11; And the 15V alternating current connects dc power output end behind three terminal regulator LM317, resistance R 10 and forward diode D9, for direct supply carries out unidirectional charging; And the 5th terminating diode D10 of relay J C, promptly direct supply is exported behind relay J C, forward diode D10, at unidirectional charging circuit of power supply while battery is carried out trickle charge.
The output of described power pack 1 divides three the tunnel, one the tunnel connects battery detection circuit after resistance R 11, R9 dividing potential drop, one the tunnel through directly providing power supply for each electricity consumption device of the simulation system in the testing circuit 4 after the inductance L 2, another road is divided into two branch roads behind inductance L 1, three terminal regulator 7805, one branch road its output Vout behind filtering circuit connects the power end of A/D converter 2, and another branch road provides an accurate voltage VREF by chip MC1403, potentiometer W1 for A/D converter 2.Wherein battery detection circuit is a master chip with two operational amplifier LM393, the normal phase input end of the WR termination LM393A of single-chip microcomputer 3, the output signal of LM393A and the signal of exporting after resistance R 11, R9 dividing potential drop connect the anti-phase and in-phase input end of LM393B respectively, and the output of LM393B connects the RD end of single-chip microcomputer 3.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (5)
1. oil quality pick-up unit, comprise power pack (1), A/D converter (2), single-chip microcomputer (3), testing circuit (4), detect control interface (7), LCD display (5) and printer interface circuit (6), wherein testing circuit (4) comprises measurement standard oil and the capacitive transducer of measured oil and the ac signal which of capacitive transducer, it is characterized in that: adopt in the described power pack (1) and hand over, the DC dual-purpose power supply, adopt relay J C to switch between the two, the output of its power pack (1) divides three the tunnel, one the tunnel connects the battery detection circuit that is detected by single-chip microcomputer (3), one the tunnel directly for each the electricity consumption device of simulation system in the testing circuit (4) provides power supply, and another road is A/D converter (2) power supply behind three terminal regulator and filtering circuit.
2. according to the described a kind of oil quality pick-up unit of claim 1, it is characterized in that: described relay J C is a normally closed relay, it is serially connected in the output circuit of direct supply, the output terminal of the normally closed termination direct supply of relay J C, another termination ac power output, ac power output is connected to charging circuit simultaneously.
3. according to claim 1 or 2 described a kind of oil quality pick-up units, it is characterized in that: described AC power comprises 9V and 15V two-way AC power, wherein the 9V alternating current is exported behind forward diode D11, and the 15V alternating current connects dc power output end behind three terminal regulator LM317, resistance R 10 and forward diode D9; Relay J C is serially connected in the output circuit of direct supply, the output terminal of normally closed termination direct supply, another termination 9V ac power output; Direct supply is exported behind relay J C, forward diode D10.
4. according to claim 1 or 2 described a kind of oil quality pick-up units, it is characterized in that: the output of described power pack (1) divides three the tunnel, one the tunnel connects battery detection circuit after resistance R 11, R9 dividing potential drop, one the tunnel through directly providing power supply for each the electricity consumption device of simulation system in the testing circuit (4) after the inductance L 2, another road is divided into two branch roads behind inductance L 1, three terminal regulator 7805, one branch road connects the power end of A/D converter (2) behind filtering circuit, another branch road is that A/D converter (2) provides an accurate voltage by chip MC1403, potentiometer W1.
5. according to the described a kind of oil quality pick-up unit of claim 4, it is characterized in that: described battery detection circuit is a master chip with two operational amplifier LM393, the normal phase input end of the WR termination LM393A of single-chip microcomputer (3), voltage of exporting after resistance R 11, R9 dividing potential drop and the output signal of LM393A connect homophase and the inverting input of LM393B respectively, and the output of LM393B connects the RD end of single-chip microcomputer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201260247U CN201130163Y (en) | 2007-11-27 | 2007-11-27 | Oil liquid quality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201260247U CN201130163Y (en) | 2007-11-27 | 2007-11-27 | Oil liquid quality detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130163Y true CN201130163Y (en) | 2008-10-08 |
Family
ID=40018024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201260247U Expired - Fee Related CN201130163Y (en) | 2007-11-27 | 2007-11-27 | Oil liquid quality detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130163Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365817A (en) * | 2013-07-19 | 2013-10-23 | 深圳市金立通信设备有限公司 | Universal serial bus (USB) circuit and terminal |
-
2007
- 2007-11-27 CN CNU2007201260247U patent/CN201130163Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103365817A (en) * | 2013-07-19 | 2013-10-23 | 深圳市金立通信设备有限公司 | Universal serial bus (USB) circuit and terminal |
| CN103365817B (en) * | 2013-07-19 | 2016-12-28 | 深圳市金立通信设备有限公司 | A kind of general-purpose serial bus USB circuit and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20131127 |