CN108344450A - A kind of vehicles motor speed tests the speed frequency measuring device - Google Patents
A kind of vehicles motor speed tests the speed frequency measuring device Download PDFInfo
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- CN108344450A CN108344450A CN201810199456.3A CN201810199456A CN108344450A CN 108344450 A CN108344450 A CN 108344450A CN 201810199456 A CN201810199456 A CN 201810199456A CN 108344450 A CN108344450 A CN 108344450A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
It tests the speed frequency measuring device the invention discloses a kind of vehicles motor speed, including test main frame, test main frame is equipped with display screen, alarm lamp is equipped with below display screen, test main frame side is equipped with network interface, the other side is equipped with signal input interface and power input interface, test main frame inner cavity is equipped with core circuit plate, core circuit plate is electrically connected the velocity sensor and frequency sensor being arranged on motor rotary shaft, the configuration of the present invention is simple, the rotating speed and frequency of motor can be detected in real time, detection efficiency is high, precision is high, monitoring center can also be sent in real time simultaneously to refer to for staff.
Description
Technical field
The present invention relates to Rotating speed measring technical field, specially a kind of vehicles motor speed tests the speed frequency measuring device.
Background technology
The vehicles be modern life in an indispensable part.Variation with the epoch and science and technology
Progress, the vehicles around us are more and more, all bring great convenience to everyone life.The vapour of land
Vehicle, the steamer in ocean, the aerial aircraft in day substantially reduce the distance of people's contacts.Motor is to convert electrical current into machine
A kind of equipment of tool energy.It is to use the power on coil (namely stator winding) to generate rotating excitation field and act on rotor (such as mouse
Cage is closed aluminium frame) form electro-magnetic motor force rotation torque.Motor is divided into dc motor and alternating current by using power supply difference
Motivation, the motor in electric system are largely alternating current generators, can be synchronous motor either asynchronous machine (motor stators
Rotational speed of magnetic field does not keep synchronous speed with rotor rotary rpm).Motor is mainly made of stator and rotor, and electrified wire is in magnetic field
The direction of middle movement under force is related with magnetic induction line (magnetic direction) direction with current direction.Electric motor operation principle is magnetic field to electricity
The effect for flowing stress, makes motor rotation；Vehicles motor speed measurement apparatus structure in the prior art is complicated, detection efficiency
It is low.
Invention content
It tests the speed frequency measuring device the purpose of the present invention is to provide a kind of vehicles motor speed, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of vehicles motor speed tests the speed frequency measurement
Device, including test main frame, the test main frame are equipped with display screen, and alarm lamp is equipped with below the display screen, described
Test main frame side is equipped with network interface, and the other side is equipped with signal input interface and power input interface, in the test main frame
Chamber is equipped with core circuit plate, and the core circuit plate is electrically connected the velocity sensor being arranged on motor rotary shaft and frequency passes
Sensor.
Preferably, the core circuit plate is equipped with microprocessor, display module, alarm module, memory module, signal and adopts
Collection transmission module and wireless sending module, the velocity sensor and frequency sensor pass through signal acquisition transmission module respectively
Microprocessor is connected, the microprocessor is separately connected display module, alarm module, memory module, and the microprocessor passes through
Wireless sending module connects remote monitoring center.
Preferably, the signal acquisition transmission module includes operational amplifier, two-stage field-effect broad band amplifier, the fortune
An input terminal for calculating amplifier is separately connected the one end resistance B and the one end capacitance B, capacitance B other ends ground connection, the resistance B other ends
Be separately connected the one end resistance A and the one end capacitance A, the capacitance A other ends connect the output end of operational amplifier, operational amplifier it is another
One input terminal is separately connected the one end resistance C and the one end resistance D, and resistance C other ends connection one end capacitance D is simultaneously grounded, and resistance D is another
End connects the output end of operational amplifier with the capacitance D other ends；The output end connection electricity of the two-stage field-effect broad band amplifier
Hold the one end E, the capacitance E other ends connect the one end resistance F, and the cathode that the resistance F other ends connect two-stage field-effect broad band amplifier is defeated
Enter end, the negative input of two-stage field-effect broad band amplifier is also connected with resistance G and is grounded, two-stage field-effect broad band amplifier
Electrode input end connects the one end resistance E, and the resistance E other ends connect operational amplifier output terminal, further include capacitance F, capacitance G, electricity
Hold H, the one end capacitance F, the one end capacitance G, the one end capacitance H connect power end respectively, and the capacitance F other ends, the capacitance G other ends, capacitance H are another
One end is grounded.
Compared with prior art, the beneficial effects of the invention are as follows：The configuration of the present invention is simple can detect motor in real time
Rotating speed and frequency, detection efficiency is high, precision is high, while can also be sent to monitoring center in real time and be referred to for staff；It uses
Signal acquisition transmission module is quick on the draw, and can realize and is amplified to small-signal and the distortion factor is low, further improve inspection
Survey precision.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the control principle block diagram of the present invention；
Fig. 3 is the signal acquisition transmission module schematic diagram of the present invention.
In figure：1- test main frames；2- display screens；3- alarm lamps；4- network interfaces；5- signal input interfaces；6- electricity
Source input interface；7- core circuit plates；8- velocity sensors；9- frequency sensors；10- microprocessors；11- display modules；12-
Alarm module；13- memory modules；14- signal acquisition transmission modules；15- wireless sending modules；16- remote monitoring centers；17-
Operational amplifier；18- two-stage field-effect broad band amplifiers.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please referring to Fig.1, Fig. 2 and Fig. 3, a kind of vehicles motor speed tests the speed frequency measuring device, including test main frame 1,
Test main frame 1 is equipped with display screen 2, and 2 lower section of display screen is equipped with alarm lamp 3, and 1 side of test main frame is equipped with network interface 4,
The other side is equipped with signal input interface 5 and power input interface 6, and 1 inner cavity of test main frame is equipped with core circuit plate 7, core circuit
Plate 7 is electrically connected the velocity sensor 8 being arranged on motor rotary shaft and frequency sensor 9；Core circuit plate 7 is equipped with micro- place
Device 10, display module 11, alarm module 12, memory module 13, signal acquisition transmission module 14 and wireless sending module 15 are managed,
Velocity sensor 8 and frequency sensor 9 connect microprocessor 10 by signal acquisition transmission module 14 respectively, and microprocessor 10 divides
Not Lian Jie display module 11, alarm module 12, memory module 13, microprocessor 10 connects long-range prison by wireless sending module 15
Control center 16.
In the present embodiment, signal acquisition transmission module 14 includes operational amplifier 17, two-stage field-effect broad band amplifier 18,
One input terminal of operational amplifier 17 is separately connected resistance one end B 2a and the one end capacitance B 2b, another terminations of capacitance B 2b
Ground, the resistance B 2a other ends are separately connected resistance one end A 1a and the one end capacitance A 1b, and the connection operation of the capacitance A 1b other ends is put
The output end of big device 17, another input terminal of operational amplifier 17 are separately connected resistance one end C 3a and the one end resistance D 4a, electricity
Resistance C 3a other ends connection one end capacitance D4b is simultaneously grounded, and the resistance D 4a other ends connect operational amplifier with the capacitance D4b other ends
17 output end；One end output end connection capacitance E 5b of two-stage field-effect broad band amplifier 18, the connection of the capacitance E 5b other ends
The one end resistance F 6a, the resistance F 6a other ends connect the negative input of two-stage field-effect broad band amplifier 18, two-stage field-effect
The negative input of broad band amplifier 18 is also connected with resistance G7a and is grounded, the anode input of two-stage field-effect broad band amplifier 18
End one end connection resistance E5a, the resistance E5a other ends connect 17 output end of operational amplifier, further include capacitance F 6b, capacitance G
7b, capacitance H 8b, the one end capacitance F 6b, the one end capacitance G 7b, the one end capacitance H 8b connect power end respectively, and capacitance F 6b are another
End, the capacitance G 7b other ends, the capacitance H 8b other ends are grounded.Operational amplifier 17 handles signal, ensures transmission letter
Number quality, and by feedback principle by signal message amplify 2 times, then pass to again subsequent two-stage field-effect broadband amplification
Device 18 carries out secondary amplification to signal again, finally again exports signal.
The configuration of the present invention is simple can detect the rotating speed and frequency of motor in real time, and detection efficiency is high, precision is high, simultaneously
Monitoring center can also be sent in real time to refer to for staff；The signal acquisition transmission module of use is quick on the draw, and can realize
Small-signal is amplified and the distortion factor is low, further improves accuracy of detection.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (3)
- Frequency measuring device, including test main frame 1. a kind of vehicles motor speed tests the speed（1）, it is characterised in that：The test Host（1）It is equipped with display screen（2）, the display screen（2）Lower section is equipped with alarm lamp（3）, the test main frame（1）Side Equipped with network interface（4）, the other side is equipped with signal input interface（5）And power input interface（6）, the test main frame（1）It is interior Chamber is equipped with core circuit plate（7）, the core circuit plate（7）It is electrically connected the velocity sensor being arranged on motor rotary shaft （8）And frequency sensor（9）.
- The frequency measuring device 2. a kind of vehicles motor speed according to claim 1 tests the speed, it is characterised in that：The core Heart circuit board（7）It is equipped with microprocessor（10）, display module（11）, alarm module（12）, memory module（13）, signal acquisition Transmission module（14）And wireless sending module（15）, the velocity sensor（8）And frequency sensor（9）Pass through signal respectively Acquire transmission module（14）Connect microprocessor（10）, the microprocessor（10）It is separately connected display module（11）, alarm mould Block（12）, memory module（13）, the microprocessor（10）Pass through wireless sending module（15）Connect remote monitoring center（16）.
- The frequency measuring device 3. a kind of vehicles motor speed according to claim 2 tests the speed, it is characterised in that：The letter Number acquisition transmission module（14）Including operational amplifier（17）, two-stage field-effect broad band amplifier（18）, the operational amplifier （17）An input terminal be separately connected the one end (2a) resistance B and the one end capacitance B (2b), capacitance B (2b) other end ground connection, resistance B (2a) other end is separately connected the one end (1a) resistance A and the one end capacitance A (1b), and capacitance A (1b) other end connects operational amplifier (17) another input terminal of output end, operational amplifier (17) is separately connected the one end (3a) resistance C and the one end resistance D (4a), Resistance C (3a) other end connects the one end (4b) capacitance D and is grounded, and resistance D (4a) other ends connect fortune with capacitance D (4b) other end Calculate the output end of amplifier (17)；The output end of the two-stage field-effect broad band amplifier (18) connects the one end capacitance E (5b), electricity Hold E (5b) other end and connect the one end resistance F (6a), resistance F (6a) other end connects two-stage field-effect broad band amplifier (18) The negative input of negative input, two-stage field-effect broad band amplifier (18) is also connected with resistance G (7a) and is grounded, two-stage field effect The electrode input end of broad band amplifier (18) is answered to connect the one end resistance E (5a), resistance E (5a) other end connects operational amplifier (17) output end further includes capacitance F (6b), capacitance G (7b), capacitance H (8b), the one end capacitance F (6b), the one end capacitance G (7b), electricity Hold the one end H (8b) and connect power end respectively, capacitance F (6b) other end, capacitance G (7b) other end, capacitance H (8b) other end connect Ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199456.3A CN108344450A (en) | 2018-03-12 | 2018-03-12 | A kind of vehicles motor speed tests the speed frequency measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199456.3A CN108344450A (en) | 2018-03-12 | 2018-03-12 | A kind of vehicles motor speed tests the speed frequency measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108344450A true CN108344450A (en) | 2018-07-31 |
Family
ID=62957537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810199456.3A Withdrawn CN108344450A (en) | 2018-03-12 | 2018-03-12 | A kind of vehicles motor speed tests the speed frequency measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108344450A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057929A (en) * | 2018-08-30 | 2018-12-21 | 广东工业大学 | A kind of method and device of detection ternary catalyzing unit blocking |
-
2018
- 2018-03-12 CN CN201810199456.3A patent/CN108344450A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057929A (en) * | 2018-08-30 | 2018-12-21 | 广东工业大学 | A kind of method and device of detection ternary catalyzing unit blocking |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180731 |
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| WW01 | Invention patent application withdrawn after publication |