CN206601597U - Proportioning valve measure and control device - Google Patents
Proportioning valve measure and control device Download PDFInfo
- Publication number
- CN206601597U CN206601597U CN201720275853.5U CN201720275853U CN206601597U CN 206601597 U CN206601597 U CN 206601597U CN 201720275853 U CN201720275853 U CN 201720275853U CN 206601597 U CN206601597 U CN 206601597U
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- signal
- proportioning valve
- sampling resistor
- selecting switch
- amplifier
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Abstract
The utility model discloses a kind of proportioning valve measure and control device, including controller, potentiometer, amplifier, power module, signal isolator, selecting switch, built-in sampling resistor and data acquisition card, selecting switch switching internal signal detection and outboard signal detection, selecting switch switches to internal signal detection, built-in sampling resistor connects the first proportioning valve, the voltage signal of built-in sampling resistor is sent to signal isolator by selecting switch and sent by data acquisition card to controller, selecting switch switches to external signal detection, signal isolator, selecting switch is sequentially communicated with external sampling resistor and the second proportioning valve, send the signal to after data acquisition card and send to controller.By the above-mentioned means, the utility model proportioning valve measure and control device, is capable of the vibrating signal of detection ratio valve, as a result simply, testing result is accurate, safe and reliable.
Description
Technical field
The utility model is related to measure and control device field, more particularly to a kind of proportioning valve measure and control device.
Background technology
Vibrating signal can effectively eliminate frictional resistance and hysterisis error, directly affect the response speed of proportioning valve.At present, city
Proportional valve amplifier on face mainly possesses control output function, only partly possesses average current detection function, does not possess
Vibrating signal detects function.The amplifier performance of different model is different, under identical input condition, and same ratio valve working condition is not
Together；Because amplifier does not possess vibrating signal detection function, it is impossible to which the actual control vibrating signal and subject for learning proportioning valve compare
Whether example valve demand matches so that proportional valve control possesses certain blindness, is unfavorable for applying and debugs.
The content of the invention
The utility model is capable of detection ratio valve mainly solving the technical problems that provide a kind of proportioning valve measure and control device
Vibrating signal, as a result simply, testing result are accurate, safe and reliable.
In order to solve the above technical problems, the technical scheme that the utility model is used is：A kind of proportioning valve observing and controlling is provided
Device, including controller, potentiometer, amplifier, power module, signal isolator, selecting switch, built-in sampling resistor and signal
Capture card, the controller is connected with amplifier to set the parameter of amplifier, is connected with data acquisition card and is received signal acquisition
The signal of card simultaneously analyzes acquisition vibrating signal, the power module and potentiometer, amplifier and signal isolator be electrically connected with to
Three powers, and the potentiometer is connected to amplifier with amplifier and provides input signal, and the output signal of amplifier is believed with input
Number change, built-in sampling resistor produces voltage signal according to the output signal of amplifier, and the selecting switch switches internal signal
Detection and outboard signal detection, the selecting switch switch to internal signal detection, and built-in sampling resistor connects the first proportioning valve,
The voltage signal of built-in sampling resistor is sent to signal isolator by selecting switch and sent by data acquisition card to control
Device, the selecting switch switches to external signal detection, signal isolator, selecting switch and external sampling resistor and the second ratio
Valve is sequentially communicated, and is sent the signal to after data acquisition card and is sent to controller.
In one preferred embodiment of the utility model, the selecting switch switch to internal signal detection, amplifier with
Built-in sampling resistor connection simultaneously produces voltage signal by output signal, and built-in sampling resistor is connected to the first proportioning valve, first
Proportioning valve is controlled by amplifier, and built-in sampling resistor transmits voltage signal to signal isolator by selecting switch,
Signal isolator will be sent to data acquisition card after the voltage signal conversion of built-in sampling resistor, and data acquisition card is according to fixed
Sample frequency carries out signal acquisition and is converted to data signal and sends to controller, the controller according to signal carry out time domain and
Frequency-domain analysis draws vibrating signal.
In one preferred embodiment of the utility model, the selecting switch switches to external signal detection, signal isolation
Device receives the voltage signal of external sampling resistor by selecting switch, and signal isolator turns the voltage signal of external sampling resistor
Sent after changing to data acquisition card, data acquisition card carries out signal acquisition according to fixed sample frequency and is converted to data signal
After send to controller, the controller according to signal carry out time and frequency domain analysis draw vibrating signal.
In one preferred embodiment of the utility model, the potentiometer provides 0-10V input signal to amplifier, interior
Put sampling resistor and produce corresponding voltage signal.
In one preferred embodiment of the utility model, the signal isolator is converted to voltage signal in 0-10V letter
After number, gathered by data acquisition card after the signal of signal isolator and be converted to data signal and send to controller, the electricity
Pressure signal is millivolt level signal.
In one preferred embodiment of the utility model, the data acquisition card sample frequency is 100kS/s, signal isolation
The response time of device is 30 μ s, and the highest frequency of sampling is 33kHz.
In one preferred embodiment of the utility model, the built-in sampling resistor is connected to the first ratio by binding post
Example valve.
In one preferred embodiment of the utility model, BNC connector, the BNC connector are connected with the selecting switch
It is connected with external sampling resistor.
In one preferred embodiment of the utility model, the power module is connected with external AC, by external exchange
Electricity is converted to 12V or 24V is powered.
The beneficial effects of the utility model are：The utility model proportioning valve measure and control device, is capable of the flutter of detection ratio valve
Signal, as a result simply, testing result are accurate, safe and reliable.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the utility model embodiment
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Other accompanying drawings are obtained, wherein：
Fig. 1 is the structural representation of the preferred embodiment of the utility model proportioning valve measure and control device one；
The mark of each part is as follows in accompanying drawing：1st, controller, 2, potentiometer, 3, amplifier, 4, power module, 5, signal every
From device, 6, selecting switch, 7, built-in sampling resistor, 8, data acquisition card, the 9, first proportioning valve, 10, external sampling resistor, 11,
Second proportioning valve, 12, connection terminal, 13, BNC connector, 14, external AC.
Embodiment
The technical scheme in the utility model embodiment will be clearly and completely described below, it is clear that described
Embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Referring to Fig. 1, a kind of proportioning valve measure and control device, including controller 1, potentiometer 2, amplifier 3, power module 4, letter
Number isolator 5, selecting switch 6, built-in sampling resistor 7 and data acquisition card 8, controller 1 are connected to set amplification with amplifier 3
The parameter of device 3, is connected with data acquisition card 8 and receives the signal of data acquisition card 8 and analyze acquisition vibrating signal, power module 4
It is electrically connected with to three and powers with potentiometer 2, amplifier 3 and signal isolator 5, potentiometer 2 is connected to amplifier with amplifier 3
3 provide input signals, and the output signal of amplifier 3 changes with input signal, and built-in sampling resistor 7 is according to the output of amplifier 3
Signal produces voltage signal, the switching internal signal detection of selecting switch 6 and outboard signal detection, and selecting switch 6 switches to inside
Signal detection, built-in sampling resistor 7 connects the first proportioning valve 9, and the voltage signal of built-in sampling resistor 7 sends out 6 by selecting switch
Deliver to after signal isolator 5 and to be sent by data acquisition card 8 to controller 1, selecting switch switching 6 to external signal detection, letter
Number isolator 5, selecting switch 6 are sequentially communicated with the external proportioning valve 11 of sampling resistor 10 and second, are sent the signal to signal and are adopted
8 send to controller 1 after truck.
In addition, selecting switch 6 switches to internal signal detection, amplifier 3 is connected with built-in sampling resistor 7 and by output
Signal produces voltage signal, and built-in sampling resistor 7 is connected to the first proportioning valve 9, and the first proportioning valve 9 is controlled by amplifier 3
System, built-in sampling resistor 7 transmits voltage signal to signal isolator 5 by selecting switch 6, and signal isolator 5 is adopted built-in
Sent after the voltage signal conversion of sample resistance 7 to data acquisition card 8, data acquisition card 8 is believed according to fixed sample frequency
Number gather and be converted to data signal and send to controller 1, controller 1 carries out time and frequency domain analysis according to signal and draws flutter
Signal.
In addition, selecting switch 6 switches to external signal detection, signal isolator 5 receives external sampling by selecting switch 6
The voltage signal of resistance 10, signal isolator 5 is sent to data acquisition card after the voltage signal of external sampling resistor 10 is changed
8, data acquisition card 8 carries out signal acquisition and is converted to send after data signal to controller 1, control according to fixed sample frequency
Device 1 processed carries out time and frequency domain analysis according to signal and draws vibrating signal.
In addition, potentiometer 2 provides 0-10V input signal to amplifier, built-in sampling resistor 7 produces corresponding voltage letter
Number.
In addition, signal isolator 5 is converted to voltage signal after 0-10V signal, signal is gathered by data acquisition card 8
After the signal of isolator 5 and be converted to data signal and send to controller 1, voltage signal is millivolt level signal.
In addition, the sample frequency of data acquisition card 8 is 100kS/s, the response time of signal isolator 5 is 30 μ s, sampling
Highest frequency is 33kHz.
In addition, built-in sampling resistor 7 is connected to the first proportioning valve 9 by binding post 12.
In addition, being connected with BNC connector 13 in selecting switch 6, BNC connector 13 is connected with external sampling resistor 10.
In addition, power module 4 is connected with external AC 14, external AC 14 is converted into 12V or 24V is supplied
Electricity.
The utility model proportioning valve measure and control device concrete operating principle is as follows：Selecting switch 6 is switched into internal signal inspection
Gear is surveyed, 220VAC power supplys are connected, can normal work.Parameter configuration, main bag are carried out to amplifier 3 by controller 1 first
Include the parameters such as output current, flutter frequency, flutter amplitude, output maximum and output minimum value；Then potentiometer 2 is adjusted, is
Amplifier 3 provides 0-10V input signal, and the output signal of amplifier 3 changes therewith, the electromagnetic wire of output signal passing ratio valve
Circle control proportioning valve work, while producing corresponding voltage signal on built-in sampling resistor 7；The voltage signal is opened by selection
Close 6 and be connected to signal isolator 5, signal isolator 5 is by voltage signal（MV grades）Be converted to 0 ~ 10V convectional signals；Signal is adopted
Truck 8 carries out signal acquisition according to fixed sample frequency（Analog-to-digital conversion）, the data signal collected is sent to controller
1, monitoring of software carries out time and frequency domain analysis to the data signal received（FFT）, draw the average current value of proportioning valve, quiver
The parameter such as resonance frequency value and flutter amplitude.When selecting switch 6 pushes external signal detection shelves, the present apparatus, which can be gathered, to be passed through
The ratio valve signal that BNC connector 13 is connected.Vibrating signal detects function：The sample frequency of data acquisition card 8 is 100kS/s, signal
The response time of isolator 5 is 30us, then the highest sample frequency of this measure and control device can reach 33kHz（1/30us ）；According to how
Qwest's Sampling Theorem：Sample frequency have to be larger than 2 times of primary signal peak frequency, could be from discrete digital signal completely
Recover primary signal.So, present apparatus detection frequency range is 0 ~ 16.5kHz.The flutter frequency scope of proportioning valve is generally
50 ~ 400Hz, so this measure and control device can apply to all proportioning valve signal detections.
Prior art is different from, the utility model proportioning valve measure and control device is capable of the vibrating signal of detection ratio valve, as a result
Simply, testing result is accurate, safe and reliable.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model description, or directly or indirectly it is used in other phases
The technical field of pass, is similarly included in scope of patent protection of the present utility model.
Claims (9)
1. a kind of proportioning valve measure and control device, it is characterised in that including controller, potentiometer, amplifier, power module, signal every
From device, selecting switch, built-in sampling resistor and data acquisition card, the controller is connected to set the ginseng of amplifier with amplifier
Number, the signal for receiving data acquisition card is connected with data acquisition card and acquisition vibrating signal is analyzed, the power module and current potential
Meter, amplifier and signal isolator are electrically connected with to three and powered, and the potentiometer is connected to amplifier with amplifier and provides defeated
Enter signal, the output signal of amplifier changes with input signal, built-in sampling resistor produces electricity according to the output signal of amplifier
Signal is pressed, the detection of selecting switch switching internal signal and outboard signal detection, the selecting switch switch to internal signal
Detection, built-in sampling resistor connects the first proportioning valve, and the voltage signal of built-in sampling resistor is sent to signal by selecting switch
Sent after isolator by data acquisition card to controller, the selecting switch switches to external signal and detected, signal isolator,
Selecting switch is sequentially communicated with external sampling resistor and the second proportioning valve, is sent the signal to after data acquisition card and is sent to control
Device.
2. proportioning valve measure and control device according to claim 1, it is characterised in that the selecting switch switches to internal signal
Detection, amplifier is connected with built-in sampling resistor and by output signal generation voltage signal, and built-in sampling resistor is connected to the
One proportioning valve, the first proportioning valve is controlled by amplifier, and built-in sampling resistor transmits voltage signal by selecting switch
To signal isolator, signal isolator is sent to data acquisition card after the voltage signal of built-in sampling resistor is changed, and signal is adopted
Truck carries out signal acquisition and is converted to data signal to send to controller according to fixed sample frequency, the controller according to
Signal carries out time and frequency domain analysis and draws vibrating signal.
3. proportioning valve measure and control device according to claim 2, it is characterised in that the selecting switch switches to external signal
Detection, signal isolator receives the voltage signal of external sampling resistor by selecting switch, and signal isolator is electric by external sampling
Sent after the voltage signal conversion of resistance to data acquisition card, data acquisition card carries out signal acquisition simultaneously according to fixed sample frequency
Be converted to and sent after data signal to controller, the controller carries out time and frequency domain analysis according to signal and show that flutter is believed
Number.
4. proportioning valve measure and control device according to claim 2, it is characterised in that the potentiometer provides 0- to amplifier
10V input signal, built-in sampling resistor produces corresponding voltage signal.
5. the proportioning valve measure and control device according to claim 3 or 4, it is characterised in that the signal isolator believes voltage
After the signal for number being converted to 0-10V, gathered by data acquisition card after the signal of signal isolator and be converted to data signal and sent out
Controller is delivered to, the voltage signal is millivolt level signal.
6. proportioning valve measure and control device according to claim 5, it is characterised in that the data acquisition card sample frequency is
100kS/s, the response time of signal isolator is 30 μ s, and the highest frequency of sampling is 33kHz.
7. proportioning valve measure and control device according to claim 2, it is characterised in that the built-in sampling resistor passes through terminals
Son is connected to the first proportioning valve.
8. proportioning valve measure and control device according to claim 3, it is characterised in that be connected with BNC in the selecting switch and connect
Head, the BNC connector is connected with external sampling resistor.
9. proportioning valve measure and control device according to claim 1, it is characterised in that the power module connects with external AC
Connect, external AC is converted into 12V or 24V is powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275853.5U CN206601597U (en) | 2017-03-21 | 2017-03-21 | Proportioning valve measure and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275853.5U CN206601597U (en) | 2017-03-21 | 2017-03-21 | Proportioning valve measure and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206601597U true CN206601597U (en) | 2017-10-31 |
Family
ID=60144314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720275853.5U Withdrawn - After Issue CN206601597U (en) | 2017-03-21 | 2017-03-21 | Proportioning valve measure and control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206601597U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873463A (en) * | 2017-03-21 | 2017-06-20 | 江苏恒立液压股份有限公司 | Proportioning valve measure and control device |
-
2017
- 2017-03-21 CN CN201720275853.5U patent/CN206601597U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873463A (en) * | 2017-03-21 | 2017-06-20 | 江苏恒立液压股份有限公司 | Proportioning valve measure and control device |
| CN106873463B (en) * | 2017-03-21 | 2023-09-01 | 江苏恒立液压股份有限公司 | Proportional valve measurement and control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171031 Effective date of abandoning: 20230901 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171031 Effective date of abandoning: 20230901 |