CN204128489U - Electrical measurement displacement meter calibration system - Google Patents
Electrical measurement displacement meter calibration system Download PDFInfo
- Publication number
- CN204128489U CN204128489U CN201420614775.3U CN201420614775U CN204128489U CN 204128489 U CN204128489 U CN 204128489U CN 201420614775 U CN201420614775 U CN 201420614775U CN 204128489 U CN204128489 U CN 204128489U
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- displacement meter
- circuit
- electrical measurement
- output terminal
- measurement displacement
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Abstract
A kind of electrical measurement displacement meter calibration system that the utility model provides, comprise grating sensor be connected with demarcation screw rod one end of elaborate servo motor and be fixed on shifter calibrating platform, demarcate the screw rod other end to be connected with electrical measurement displacement meter to be measured, electrical measurement displacement meter to be measured is fitted by data line and signal and is adjusted the input end of device to be connected, the input end of embedded Webserver is fitted with signal with the output terminal of grating sensor respectively and is adjusted the output terminal of device to be connected, embedded Webserver is also connected with elaborate servo motor by data line, embedded Webserver is by contrasting the displacement data collected, calculate calibration coefficient, complete the demarcation to electrical measurement displacement meter to be measured.
Description
Technical field
The utility model relates to field of measuring technique, particularly relates to an electrical measurement displacement meter calibration system.
Background technology
The practicality of displacement meter in the process of commercial production and scientific research is very general, along with the prolongation of service time and the aging of electronic devices and components, sensitivity is to changing, if demarcated displacement meter not in time, error of measured data can be caused to increase, significant impact is produced to the data result of commercial production and scientific research.
Scaling method conventional at present is mainly divided into mechanical measurement and electronic surveying two kinds, the general practical vernier caliper of mechanical measurement, dial gauge etc., and measuring accuracy is relatively not high; Electronic surveying generally adopts displacement transducer such as the grating scale with high accuracy to demarcate, and by manually reading the data of grating scale, calculates the calibration coefficient of displacement meter to be calibrated.But these two kinds of modes all need manually to complete, workload is large, and the precision of demarcation is also be difficult to ensure.
Utility model content
In view of this, the utility model provides a kind of electrical measurement displacement meter calibration system, large for solving workload, and stated accuracy is difficult to the problem ensured.
The electrical measurement displacement meter calibration system that the utility model provides, at least comprise: with elaborate servo motor and the displacement meter means for correcting of grating sensor, described elaborate servo motor power output terminal coaxial transmission is provided with demarcation axle, electrical measurement displacement meter to be measured is arranged at demarcation axle, described grating sensor is arranged at the clutch end place of elaborate servo motor, and described electrical measurement displacement meter is all connected with described electrical measurement displacement meter means for correcting with the output terminal of grating sensor.
Further, described displacement meter means for correcting at least comprises: signal conditioning circuit and treatment circuit, and the input end of described signal conditioning circuit is connected with electrical measurement displacement meter; The input end of described treatment circuit is connected to the output terminal of signal conditioning circuit and the output terminal of grating sensor.
Further, described signal conditioning circuit comprises: signal amplification circuit, filtering circuit and change-over circuit, and the input end of described signal amplification circuit is connected with electrical measurement displacement meter; The input end of described filtering circuit is connected with the output terminal of signal amplifying circuit; The input end of described change-over circuit is connected with the output terminal of filtering circuit; The output terminal of described change-over circuit is connected with the input end for the treatment of circuit;
Described treatment circuit at least comprises: signal acquisition circuit, motor-drive circuit, control circuit and external interface, and the input end of described signal acquisition circuit is connected with the output terminal of grating sensor with change-over circuit output terminal respectively; The output terminal of described signal acquisition circuit is connected with the input end of control circuit; The output terminal of described control circuit is connected with the input end of external interface; The output terminal of described motor-drive circuit is connected with the input end of elaborate servo motor; The input end of described motor-drive circuit is connected with external interface.
Further, described electrical measurement displacement meter calibration system also comprises the external unit be connected with by external interface.
Further, also comprise the displacement meter calibration platform of carrying elaborate servo motor, grating sensor and electrical measurement displacement meter, the loading end of described platform is provided with the locating piece for fixing demarcation axle, described demarcation axle is through locating piece, and described electrical measurement displacement meter and elaborate servo motor are positioned at the both sides of locating piece.
Further, the corner of described displacement meter calibration mesa base and side is respectively arranged with four foot screws.
Further, described displacement meter calibration platform side is provided with two level meters, and one, described level meter is laterally install, and another one is longitudinally install.
The beneficial effects of the utility model:
The utility model provides a kind of electrical measurement displacement meter calibration system, by the displacement data that the high precision displacement data and electrical measurement displacement meter that automatically contrast the grating sensor measurement collected are measured, automatic acquisition electrical measurement displacement meter calibration coefficient, greatly reduce the workload of calibration process, improve work efficiency, also ensure that the precision of demarcation simultaneously.Meanwhile, leveling knob and leveling bubble are installed bottom displacement meter measuring table, are convenient to carry out electrical measurement displacement meter calibration in the occasion of different condition, and ensure the precision of calibration process.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is principle schematic of the present utility model
Embodiment
Fig. 1 is structural representation of the present utility model, and Fig. 2 is principle schematic of the present utility model.
As shown in Figure 1 due to the resolution of Grating examinations and precision very high, resolution can reach micron order usually, can reach 0.1 μm by sub-circuit segmentation, even higher, therefore adopt grating sensor 3 to measure straight-line displacement, the accuracy during measurement of system can be ensured.
Elaborate servo motor 4 is applicable to the demarcation being applied to electrical measurement displacement meter 1 in usability and application scenario very much, it is high that reason is that elaborate servo motor 4 has control accuracy, low frequency characteristic is good, overload capacity is strong, fast response time, operational reliability advantages of higher, compare other motors, as stepper motor etc., there is obviously advantage, be more suitable for the demarcation carrying out electrical measurement displacement meter 1.
As shown in Figure 2, motor-drive circuit in displacement meter means for correcting 10 controls elaborate servo motor 4 and produces displacement, the high precision position shifting signal that data acquisition circuit gathers grating sensor 3 respectively and the displacement signal gathered through the electrical measurement displacement meter 1 to be measured of signal conditioning circuit process, comparing calculation process is carried out through control circuit, obtain calibration coefficient, complete the demarcation to electrical measurement displacement meter 1 to be measured.
Particularly, as shown in Figure 1, elaborate servo motor 4 clutch end coaxial transmission is provided with demarcation axle, electrical measurement displacement meter 1 to be measured is arranged at demarcation axle, grating sensor is arranged at the clutch end place of elaborate servo motor 4, and electrical measurement displacement meter 1 is all connected with described displacement meter means for correcting with the output terminal of grating sensor 3.
Motor-drive circuit drives elaborate servo motor 4, elaborate servo motor 4 transmission is demarcated axle and is produced displacement, grating sensor 3 passes through data line, high precision displacement data are delivered to the signal acquisition circuit of displacement meter means for correcting 10, the signal collected is passed through signal amplification circuit by electrical measurement displacement meter 1 to be measured simultaneously, after filtering circuit and change-over circuit process, generate displacement voltage signal and be sent to the signal acquisition circuit in displacement meter means for correcting 10 by signal wire, the displacement meter signal collected is sent to control circuit by signal acquisition circuit, control circuit contrasts collect two groups of displacement datas, and according to the high precision position shifting signal of grating sensor 3 as benchmark, calculate the calibration coefficient of electrical measurement displacement meter, complete the demarcation to electrical measurement displacement meter to be measured.
Signal conditioning circuit 9 of the present utility model at least comprises: signal amplification circuit, change-over circuit, filtering circuit, can connect the electrical measurement displacement meter of condenser type, resistance-type and inductance type.
Signal amplification circuit can improve incoming signal level to mate the scope of analog-digital conversion better, thus improves measuring accuracy and sensitivity.In addition, using the external signal conditioning device be placed on closer to signal source or converter, the signal-noise ratio of measurement can be improved by improving signal level before signal is by Environmental Noise Influence.Filtering circuit removes undesirable noise in certain frequency range.Nearly all data acquisition application all can by the noise (coming from electric wire or plant equipment) of 50Hz or 60Hz to a certain extent.So signal conditioning circuit includes as suppressing 50Hz or 60Hz noise to the full extent and custom-designed low-pass filter circuit.
The treatment circuit of displacement meter means for correcting 10 of the present utility model is at least by signal acquisition circuit, and motor-drive circuit, control circuit and external interface form.
The high precision displacement data that signal acquisition circuit is measured for gathering grating sensor 3, and through displacement signal that the electrical measurement displacement meter of signal debug circuit process is measured;
Motor-drive circuit, for controlling the duty of elaborate servo motor 4, makes demarcation axle produce displacement;
Control circuit for contrasting the displacement data of the grating sensor 3 and electrical measurement displacement meter 1 collected, and calculates the calibration coefficient of electrical measurement displacement meter 1.Control circuit can adopt main flow single-chip microcomputer all can realize above-mentioned functions as 80C51 single-chip microcomputer, ATMEL single-chip microcomputer etc., is not therefore repeating;
External interface 8 is for connecting the equipment such as external printer 5 and external microcomputer 11.
The fixture 2 that the shaft demarcating axle is fixed through a bottom and displacement meter calibration platform.Can prevent from demarcating axle to produce up and down when producing displacement or left and right skew, to ensure precision when measuring.
External interface 8 provides the connection communication of the external units such as external microcomputer 11, printer 5 and displacement meter means for correcting, external microcomputer 11 can directly to motor-drive circuit to transmission driving instruction, realize the driving to elaborate servo motor 4, the convenient duty controlling elaborate servo motor 4, can also by the mode of software programming, adopt graphical, visualization interface, the result etc. of the data that Real Time Observation acquisition module collects and data processing; The result of demarcation directly can be printed as displacement meter calibration report by external printer 5.
In order to avoid in displacement meter calibration process, due to the inclination of displacement meter calibration platform, the process acceptance of the bid dead axle demarcating is caused to produce deviation by External Force Acting, the degree of accuracy of demarcation is made to be subject to unnecessary impact, the utility model is provided with levelling device bottom displacement meter calibrating platform, in order to ensure the level of calibrating platform, what the present embodiment adopted is bottom calibrating platform and sidewall arranges foot screw 7, and the modes such as support also can be adopted to realize this function.In calibration process, position as placed calibrating platform cannot keep level, by the height of the foot screw of adjustment calibrating platform, can change the height of calibrating platform corner, by observing the liquid level position in leveling bubble, the surface of calibrating platform is up to the standard.In the present embodiment, the bottom of calibrating platform and the corner of sidewall are respectively arranged with 4 foot screws 7, and side is respectively arranged with horizontal and vertical two level meters 6, under satisfied different site condition, are fallen by platform or vertical straight use.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those skilled in the art are to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. an electrical measurement displacement meter calibration system, it is characterized in that: at least comprise: with elaborate servo motor and the displacement meter means for correcting of grating sensor, described elaborate servo motor power output terminal coaxial transmission is provided with demarcation axle, electrical measurement displacement meter to be measured is arranged at demarcation axle, described grating sensor is arranged at the clutch end place of elaborate servo motor, and described electrical measurement displacement meter is all connected with described electrical measurement displacement meter means for correcting with the output terminal of grating sensor.
2. a kind of electrical measurement displacement meter calibration system according to claim 1, it is characterized in that: described displacement meter means for correcting at least comprises: signal conditioning circuit and treatment circuit, the input end of described signal conditioning circuit is connected with electrical measurement displacement meter; The input end of described treatment circuit is connected to the output terminal of signal conditioning circuit and the output terminal of grating sensor.
3. a kind of electrical measurement displacement meter calibration system according to claim 2, it is characterized in that: described signal conditioning circuit comprises: signal amplification circuit, filtering circuit and change-over circuit, the input end of described signal amplification circuit is connected with electrical measurement displacement meter; The input end of described filtering circuit is connected with the output terminal of signal amplifying circuit; The input end of described change-over circuit is connected with the output terminal of filtering circuit; The output terminal of described change-over circuit is connected with the input end for the treatment of circuit;
Described treatment circuit at least comprises: signal acquisition circuit, motor-drive circuit, control circuit and external interface, and the input end of described signal acquisition circuit is connected with the output terminal of grating sensor with change-over circuit output terminal respectively; The output terminal of described signal acquisition circuit is connected with the input end of control circuit; The output terminal of described control circuit is connected with the input end of external interface; The output terminal of described motor-drive circuit is connected with the input end of elaborate servo motor; The input end of described motor-drive circuit is connected with external interface.
4. a kind of electrical measurement displacement meter calibration system according to claim 3, is characterized in that: described electrical measurement displacement meter calibration system also comprises the external unit be connected with by external interface.
5. a kind of electrical measurement displacement meter calibration system according to claim 4, it is characterized in that: the displacement meter calibration platform also comprising carrying elaborate servo motor, grating sensor and electrical measurement displacement meter, the loading end of described platform is provided with the locating piece for fixing demarcation axle, described demarcation axle is through locating piece, and described electrical measurement displacement meter and elaborate servo motor are positioned at the both sides of locating piece.
6. a kind of electrical measurement displacement meter calibration system according to claim 5, is characterized in that: the corner of described displacement meter calibration mesa base and side is respectively arranged with four foot screws.
7. a kind of electrical measurement displacement meter calibration system according to claim 6, is characterized in that: described displacement meter calibration platform side is provided with two level meters, and one, described level meter is laterally install, and another one is longitudinally install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614775.3U CN204128489U (en) | 2014-10-22 | 2014-10-22 | Electrical measurement displacement meter calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420614775.3U CN204128489U (en) | 2014-10-22 | 2014-10-22 | Electrical measurement displacement meter calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204128489U true CN204128489U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420614775.3U Expired - Fee Related CN204128489U (en) | 2014-10-22 | 2014-10-22 | Electrical measurement displacement meter calibration system |
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| Country | Link |
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| CN (1) | CN204128489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282776A (en) * | 2018-10-19 | 2019-01-29 | 长江水利委员会长江科学院 | Tensile-line instrument automates caliberating device and its scaling method |
-
2014
- 2014-10-22 CN CN201420614775.3U patent/CN204128489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282776A (en) * | 2018-10-19 | 2019-01-29 | 长江水利委员会长江科学院 | Tensile-line instrument automates caliberating device and its scaling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20161022 |