CN204405509U - Digital output bit moves sensor-type high-frequency reciprocating tester - Google Patents
Digital output bit moves sensor-type high-frequency reciprocating tester Download PDFInfo
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- CN204405509U CN204405509U CN201520084140.1U CN201520084140U CN204405509U CN 204405509 U CN204405509 U CN 204405509U CN 201520084140 U CN201520084140 U CN 201520084140U CN 204405509 U CN204405509 U CN 204405509U
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Abstract
The utility model is a kind of high-frequency reciprocating tester, particularly a kind of digital output bit moves sensor-type high-frequency reciprocating tester, comprise vibrator, upper fixture, upper test specimen, lower test specimen and oil box, vibrator is connected with upper fixture by projecting shaft, the bottom surface of fixture is located at by upper test specimen, lower test specimen is located in oil box, and upper test specimen is positioned on lower test specimen and also contacts with it; Also comprise displacement transducer and signal picker, displacement transducer is located on projecting shaft, and displacement transducer is connected with signal picker by signal wire; Institute's displacement sensors is increment type grating or magnetic grid displacement transducer, and comprise read head and grid chi, grid chi is located on projecting shaft.The light volume small-signal of the utility model quality exports flexibly, and vibrator can run under high speed; The orthogonal coding numeral signal that displacement transducer exports, is directly connected with the signal pickup assembly with quadrature decoder interface, realizes digital control, can reach high at a high speed and accelerate high-precision control performance, stable and reliable for performance.
Description
Technical field
The utility model is a kind of high-frequency reciprocating tester, and particularly a kind of digital output bit moves sensor-type high-frequency reciprocating tester.
Background technology
High-frequency reciprocating tester be a kind of in variable frequency range with the equipment that the greasy property of reciprocating operating mode to oil plant or coating detects, generally all be provided with for monitoring reciprocating displacement detector in this equipment, its the reciprocating monitoring of existing high-frequency reciprocating tester, linear variable differential transformer (LVDT) (LVDT) is mainly used to realize, LVDT is a kind of device for transformer being widely used in non electrical quantity and detecting, and is mainly used in measuring the non electrical quantity parameters such as displacement, pressure, vibration.The shift simulation signal that high-frequency reciprocating tester exports by LVDT is converted to a certain amount of displacement size, realizes thus the reciprocating monitoring of high-frequency reciprocating tester.Due to the impact of LVDT excited target power supply and signal processing circuit, there will be time drift, this will directly have influence on the accuracy of detection of displacement; In addition, LVDT adopts the mode process output signal of AD conversion, and this, except introducing the error of signal conditioning circuit self, also can introduce the error of AD converter itself, and its result will directly have influence on the stability of output signal.
Summary of the invention
The purpose of this utility model adopts LVDT to measure the defect of displacement its precision low-output signal instability to overcome existing high-frequency reciprocating tester, invents the digital output bit that a kind of displacement transducer substitutes LVDT and move sensor-type high-frequency reciprocating tester.
The purpose of this utility model realizes as follows: described digital output bit moves sensor-type high-frequency reciprocating tester, comprise vibrator, upper fixture, upper test specimen, lower test specimen and oil box, vibrator is connected with upper fixture by projecting shaft, the bottom surface of fixture is located at by upper test specimen, lower test specimen is located in oil box, and upper test specimen is positioned on lower test specimen and also contacts with it; Also comprise displacement transducer and signal picker, displacement transducer is located on projecting shaft, and displacement transducer is connected with signal picker by signal wire.
Institute's displacement sensors is increment type grating displacement sensor, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
Institute's displacement sensors is increment type magnetic grid displacement transducer, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
Institute's displacement sensors is absolute optical displacement transducer, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
Institute's displacement sensors is absolute type magnetic grid displacement transducer, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
Good effect of the present utility model is as follows: the utility model mainly adopts increment type grating or magnetic grid displacement transducer to carry out Real-Time Monitoring to the to-and-fro movement of high-frequency reciprocating tester, during installation, grid chi and read head contactless, installation mode is simple to operate, and vibrator can run under high speed; The Heat stability is good of grid chi, environmental resistance ability is strong, and manufacturing accuracy is high; Read head, by different subdivided multiplying, with the use of the grid chi of different incisure density, can provide the resolution being up to 50nm, fully can meet the requirement of high-frequency reciprocating tester to displacement detecting; Read head gets final product work without the need to special excitation power supply, has that quality is light, volume is little, signal exports feature flexibly; The orthogonal coding numeral signal that displacement transducer exports, is directly connected with the signal pickup assembly with quadrature decoder interface, is easy to realize digital control, can reach at a high speed, highly to accelerate and high-precision control performance, and stable and reliable for performance, without the need to regular calibration.
Accompanying drawing explanation
Fig. 1 is the utility model structural drawing
In figure: test specimen on fixture 3 on 1 vibrator 2
4 times test specimen 5 oil box 6 projecting shafts
7 displacement transducer 8 signal picker 9 signal wires
The tested oil plant of 10 read head 11 grid chi 12
Embodiment
As shown in Figure 1, described digital output bit moves sensor-type high-frequency reciprocating tester, comprise vibrator 1, upper fixture 2, upper test specimen 3, lower test specimen 4 and oil box 5, vibrator 1 is connected with upper fixture 2 by projecting shaft 6, the bottom surface of fixture 2 is located at by upper test specimen 3, lower test specimen 4 is located in oil box 5, and upper test specimen 3 is positioned on lower test specimen 4 and also contacts with it; Also comprise displacement transducer 7 and signal picker 8, displacement transducer 7 is located on projecting shaft 6, and displacement transducer 7 is connected with signal picker 7 by signal wire 9.
Institute's displacement sensors 7 is increment type grating displacement sensor, and it is made up of read head 10 and grid chi 11, and grid chi 11 is located on projecting shaft 6.
Institute's displacement sensors 7 is increment type magnetic grid displacement transducer, and it is made up of read head 10 and grid chi 11, and grid chi 11 is located on projecting shaft 6.
Institute's displacement sensors 7 is absolute optical displacement transducer, and it is made up of read head 10 and grid chi 11, and grid chi 11 is located on projecting shaft 6.
Institute's displacement sensors 7 is absolute type magnetic grid displacement transducer, and it is made up of read head 10 and grid chi 11, and grid chi 11 is located on projecting shaft 6.
During use, inject tested oil plant 12 in oil box 5, upper test specimen 3 does high-frequency reciprocating motion under the drive of vibrator 1 on the surface of lower test specimen 4, by the Frotteurism between upper test specimen 3 and lower test specimen 4, can measure the greasy property of tested oil plant 12; By displacement transducer 7 and signal picker 8, Real-Time Monitoring can be carried out to the to-and-fro movement that vibrator 1 exports.
The increment type grating displacement sensor that the utility model provides, increment type magnetic grid displacement transducer, absolute optical displacement transducer and absolute type magnetic grid displacement transducer, be digital displacement transducer; Wherein, increment type grating displacement sensor and increment type magnetic grid displacement transducer have the output function of orthogonal intersection code signal, and its signal pickup assembly then possesses the function resolving orthogonal intersection code signal; Absolute optical displacement transducer and absolute type magnetic grid displacement transducer possess the output function of absolute displacement numerical value, and its signal pickup assembly then possesses the function receiving and resolve shift value; Above-mentioned digital displacement transducer is when the displacement signal that high-frequency reciprocating tester exports being detected, displacement signal can be converted to orthogonal intersection code signal or be used for representing the data of absolute displacement values, this kind of digital signal or data contain accurate displacement information, after the process of signal pickup assembly, this displacement information is used to control the motion process of high-frequency reciprocating tester and the display of displacement data.
Claims (5)
1. a digital output bit moves sensor-type high-frequency reciprocating tester, comprise vibrator, upper fixture, upper test specimen, lower test specimen and oil box, vibrator is connected with upper fixture by projecting shaft, the bottom surface of fixture is located at by upper test specimen, lower test specimen is located in oil box, and upper test specimen is positioned on lower test specimen and also contacts with it, it is characterized in that: also comprise displacement transducer and signal picker, displacement transducer is located on projecting shaft, and displacement transducer is connected with signal picker by signal wire.
2. digital output bit according to claim 1 moves sensor-type high-frequency reciprocating tester, it is characterized in that: institute's displacement sensors is increment type grating displacement sensor, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
3. digital output bit according to claim 1 moves sensor-type high-frequency reciprocating tester, it is characterized in that: institute's displacement sensors is increment type magnetic grid displacement transducer, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
4. digital output bit according to claim 1 moves sensor-type high-frequency reciprocating tester, it is characterized in that: institute's displacement sensors is absolute optical displacement transducer, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
5. digital output bit according to claim 1 moves sensor-type high-frequency reciprocating tester, it is characterized in that: institute's displacement sensors is absolute type magnetic grid displacement transducer, and it is made up of read head and grid chi, and grid chi is located on projecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520084140.1U CN204405509U (en) | 2015-02-06 | 2015-02-06 | Digital output bit moves sensor-type high-frequency reciprocating tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520084140.1U CN204405509U (en) | 2015-02-06 | 2015-02-06 | Digital output bit moves sensor-type high-frequency reciprocating tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405509U true CN204405509U (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520084140.1U Expired - Fee Related CN204405509U (en) | 2015-02-06 | 2015-02-06 | Digital output bit moves sensor-type high-frequency reciprocating tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN204405509U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546764A (en) * | 2016-12-06 | 2017-03-29 | 辽宁省计量科学研究院 | Velocity of displacement measuring instrument during high-precision real |
| CN108762319A (en) * | 2018-05-24 | 2018-11-06 | 北京朝阳高科应用技术研究所有限公司 | Weight for petrol engine air admission valve deposits simulation test machine quantifies pumping installations |
| WO2019237294A1 (en) * | 2018-06-13 | 2019-12-19 | 北京朝阳高科应用技术研究所有限公司 | Device, system, and testing machine for testing fuel lubricity |
| CN112730049A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Stroke measuring method of reciprocating testing machine and reciprocating testing machine |
-
2015
- 2015-02-06 CN CN201520084140.1U patent/CN204405509U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546764A (en) * | 2016-12-06 | 2017-03-29 | 辽宁省计量科学研究院 | Velocity of displacement measuring instrument during high-precision real |
| CN108762319A (en) * | 2018-05-24 | 2018-11-06 | 北京朝阳高科应用技术研究所有限公司 | Weight for petrol engine air admission valve deposits simulation test machine quantifies pumping installations |
| WO2019237294A1 (en) * | 2018-06-13 | 2019-12-19 | 北京朝阳高科应用技术研究所有限公司 | Device, system, and testing machine for testing fuel lubricity |
| CN112730049A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Stroke measuring method of reciprocating testing machine and reciprocating testing machine |
| CN112730049B (en) * | 2019-10-28 | 2024-04-02 | 中国石油化工股份有限公司 | Stroke measuring method of reciprocating type testing machine and reciprocating type testing machine |
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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: 20150617 Termination date: 20160206 |