CN103245458A - Half-sine quasi-static calibration device of force sensor - Google Patents
Half-sine quasi-static calibration device of force sensor Download PDFInfo
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- CN103245458A CN103245458A CN2013101168753A CN201310116875A CN103245458A CN 103245458 A CN103245458 A CN 103245458A CN 2013101168753 A CN2013101168753 A CN 2013101168753A CN 201310116875 A CN201310116875 A CN 201310116875A CN 103245458 A CN103245458 A CN 103245458A
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Abstract
The invention discloses a half-sine quasi-static calibration device of a force sensor. The half-sine quasi-static calibration device comprises an oil cylinder (4), hydraulic oil (5), a pressure valve (6), a hydraulic cylinder (8), a heavy hammer (1), a piston (2), a piston adapter (3), a calibrator (9) and a support (7), wherein the piston adapter (3) is in threaded connection with the top of the oil cylinder (4); the piston (2) is placed in the piston adapter (3); the pressure valve (6) is fixedly connected with the oil cylinder (4); the oil outlet of the pressure valve (6) is communicated with the oil inlet of the hydraulic cylinder (8); the calibrator (9) is in bolted connection with the hydraulic cylinder (8); the force sensor to be calibrated is in bolted connection with the calibrator (9); and the heavy hammer (1) is suspended above the piston (2). The heavy hammer (1) strikes the piston (2) to enable the hydraulic cylinder (8) to generate force impulse to act on the force sensor to be calibrated. According to the invention, quasi-static calibration of the force sensor is carried out by utilizing force impulse generated by the device so as to reduce dynamic measurement error.
Description
Technical field
The present invention relates to a kind of caliberating device of power sensor, particularly a kind of semisinusoidal quasistatic caliberating device of power sensor.
Background technology
The caliberating device of power sensor generally comprises counterweight, oil cylinder, hydraulic oil, pressure valve, hydraulic cylinder at present.The static demarcating method is adopted in demarcation to the power sensor usually, and the counterweight of loading certain mass for the power sensor makes it keep stressed steady, and the stressing conditions of sensor great majority are dynamically in the actual test process, the power pulse of similar half-sine wave.Based on the response characteristic of power sensor, there is certain measuring errors in the sensitivity test dynamic stress situation of static demarcating.
Summary of the invention
The object of the present invention is to provide a kind of semisinusoidal quasistatic caliberating device of power sensor, solve the measuring error problem that the kinetic measurement of power sensor static demarcating brings.
A kind of semisinusoidal quasistatic caliberating device of power sensor, comprising: oil cylinder, hydraulic oil, pressure valve, hydraulic cylinder also comprise: weight, piston, piston adaptor, calibration meter and support.Oil cylinder places levelling bench, and piston adaptor is for being with externally threaded cylindrical structure, and described piston adaptor is connected with the oil cylinder screw top, and hydraulic oil places in the oil cylinder, and piston places in the piston adaptor; Pressure valve is fixedlyed connected with oil cylinder, and the pressure valve oil-out communicates with the hydraulic cylinder oil-in, and hydraulic cylinder is connected with bracket screw, and the calibration meter is connected with the hydraulic cylinder bolt, and sensor to be calibrated is connected with calibration meter bolt, and weight is suspended on the piston.
The semisinusoidal quasistatic caliberating device of power sensor utilizes the pulse of semisinusoidal power that the power sensor is demarcated.This semisinusoidal power pulse is produced by weight, weight is by the hydraulic oil in the piston compression cylinder on the eminence free-falling bump oil cylinder, change weight kinetic energy the pressure potential of hydraulic oil in the oil cylinder into gradually, piston stop motion when kinetic energy is kept to zero, pressure reaches peak value; Compressed hydraulic oil expansion promotes piston and weight moves upward, and pressure also reduces gradually, returns to reference position up to piston, and pressure also returns to zero.Whole process produces a semisinusoidal type pressure pulse.Pressure pulse acts on the built-in piston of hydraulic cylinder by hydraulic oil, makes the piston of hydraulic cylinder produce thrust, and pressure pulse is transformed into the power pulse, and the driving source of power is provided.Driving source acts on calibration meter and power sensor to be calibrated, makes both export certain response.The calibration meter is used for the ergometry pulse, must be through the metering of relevant metrological service of country.To the calculating of comparing of the output valve of calibration meter and power sensor to be calibrated, the demarcation sensitivity that draws power sensor to be calibrated.Suppose that the capable size of calibration instrumentation is a, sensor output voltage to be calibrated is v
0, drift is b, then transducer sensitivity k=(a-b)/v to be calibrated
0Realized the semisinusoidal quasistatic demarcation of power sensor.
This device is different from present static demarcating device, and the power pulse that utilizes weight to produce is carried out the quasistatic demarcation to the power sensor, has reduced dynamic measurement error to a certain extent.
Description of drawings
The structural representation of the semisinusoidal quasistatic caliberating device of a kind of power sensor of Fig. 1.
1. weight 2. pistons 3. piston adaptor 4. oil cylinders 5. hydraulic oil 6. pressure valve 7. supports 8. hydraulic cylinders
9. calibration is counted.
Embodiment
A kind of semisinusoidal quasistatic caliberating device of power sensor comprises: oil cylinder 4, hydraulic oil 5, pressure valve 6, hydraulic cylinder 8 also comprise: weight 1, piston 2, piston adaptor 3, calibration meter 9 and support 7.Oil cylinder 4 places levelling bench, and piston adaptor 3 is for being with externally threaded cylinder unit, and described piston adaptor 3 is connected with oil cylinder 4 screw top, and hydraulic oil 5 places oil cylinder 4, and piston 2 places in the piston adaptor 3; Pressure valve 6 is fixedlyed connected with oil cylinder 4, pressure valve 6 oil-outs communicate with hydraulic cylinder 8 oil-ins, and hydraulic cylinder 8 usefulness screws are horizontally fixed on the support 7, and calibration meter 9 is connected with hydraulic cylinder 8 bolts, sensor to be calibrated is connected with calibration meter 9 bolts, and weight 1 is suspended on the piston 2.
The semisinusoidal quasistatic caliberating device of power sensor utilizes the pulse of semisinusoidal power that the power sensor is demarcated.This semisinusoidal power pulse is produced by weight 1, weight 1 is by the piston 2 on the certain altitude free-falling bump oil cylinder 4, and the hydraulic oil 5 in the compression cylinder changes weight 1 kinetic energy into the pressure potential of hydraulic oil 5 in the oil cylinder 4 gradually, piston 2 stop motions when kinetic energy is kept to zero, pressure reaches peak value; Compressed hydraulic oil 5 expansions promote piston 2 and weight 1 moves upward, and pressure also reduces gradually, returns to reference position up to piston 2, and pressure also returns to zero.Whole process produces a semisinusoidal type pressure pulse.Pressure pulse acts on the built-in piston of hydraulic cylinder 8 by pilot medium hydraulic oil 5, makes the piston of hydraulic cylinder 8 produce thrust, and pressure pulse is transformed into the power pulse, and the driving source of power is provided.Width and the peak value of the power pulse that produces can be controlled: peak value determines by the potential energy of weight 1, the peak value that comes control by height or the quality of weight 1; Pulse width is controlled by the area of piston 2 xsects, and the cross-sectional area of piston 2 is realized by the piston adaptor 3 of changing different inner diameters.The power pulse action makes both export certain response in calibration meter 9 and power sensor to be calibrated.Calibration meter 9 is used for the ergometry pulse, must be through the metering of relevant metrological service of country.To the calculating of comparing of the output valve of calibration meter 9 and power sensor to be calibrated, the sensitivity that draws power sensor to be calibrated.Suppose that the capable size of calibration instrumentation is a, sensor output voltage to be calibrated is v
0, drift is b, then transducer sensitivity k=(a-b)/v to be calibrated
0Realized the semisinusoidal quasistatic demarcation of power sensor.
Claims (1)
1. the semisinusoidal quasistatic caliberating device of a power sensor, comprise: oil cylinder (4), hydraulic oil (5), pressure valve (6), hydraulic cylinder (8) is characterized in that also comprising: weight (1), piston (2), piston adaptor (3), calibration meter (9) and support (7); Oil cylinder (4) places levelling bench, and piston adaptor (3) is for being with externally threaded cylinder unit, and described piston adaptor (3) is connected with oil cylinder (4) screw top, and hydraulic oil (5) places oil cylinder (4), and piston (2) places in the piston adaptor (3); Pressure valve (6) is fixedlyed connected with oil cylinder (4), pressure valve (6) oil-out communicates with hydraulic cylinder (8) oil-in, hydraulic cylinder (8) is connected with support (7) screw, calibration meter (9) is connected with hydraulic cylinder (8) bolt, sensor to be calibrated is connected with calibration meter (9) bolt, and weight (1) is suspended on the piston (2);
The semisinusoidal quasistatic caliberating device of power sensor utilizes the pulse of semisinusoidal power that the power sensor is demarcated; This semisinusoidal power pulse is produced by weight (1), weight (1) is by the piston (2) on the eminence free-falling bump oil cylinder (4), hydraulic oil (5) in the compression cylinder, weight (1) kinetic energy is changed gradually into the pressure potential of the interior hydraulic oil of oil cylinder (4) (5), piston (2) stop motion when kinetic energy is kept to zero, pressure reaches peak value; Compressed hydraulic oil (5) expansion promotes piston (2) and weight (1) moves upward, and pressure also reduces gradually, returns to reference position up to piston (2), and pressure also returns to zero; Whole process produces a semisinusoidal type pressure pulse; This pressure pulse acts on the built-in piston of hydraulic cylinder (8) by pilot medium hydraulic oil (5), makes the piston of hydraulic cylinder (8) produce thrust, and pressure pulse is transformed into the power pulse, and the driving source of power is provided; The peak value of the power pulse that produces determines by the potential energy of weight (1), the peak value that comes control by height or the quality of weight (1); The power pulse width is controlled by the area of piston (2) xsect, and the cross-sectional area of piston (2) is realized by the piston adaptor (3) of changing different inner diameters; The power pulse action is in calibration meter (9) and power sensor to be calibrated, and both produce output valve; To the calculating of comparing of the output valve of calibration meter (9) and power sensor to be calibrated, the sensitivity that draws power sensor to be calibrated; Suppose that the capable size of calibration instrumentation is a, sensor output voltage to be calibrated is v
0, drift is b, then transducer sensitivity k=(a-b)/v to be calibrated
0Realized the semisinusoidal quasistatic demarcation of power sensor.
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712740A (en) * | 2014-01-09 | 2014-04-09 | 中国人民解放军总参谋部工程兵科研三所 | Dynamic high-pressure calibration device of flat type pressure sensor |
| CN104444978A (en) * | 2014-11-14 | 2015-03-25 | 杜文 | Gravity hydraulic booster |
| CN104614124A (en) * | 2014-11-05 | 2015-05-13 | 中国航空工业集团公司北京长城计量测试技术研究所 | Small magnitude pulse force generation device |
| CN105486450A (en) * | 2015-12-10 | 2016-04-13 | 中国航空工业集团公司北京长城计量测试技术研究所 | Wide-range pulse force calibration device |
| CN105806555A (en) * | 2016-04-14 | 2016-07-27 | 宝鸡石油钢管有限责任公司 | Complete machine torque calibration device and method for integrated three-dimensional oil casing makeup and breakout device |
| CN106525331A (en) * | 2016-11-25 | 2017-03-22 | 中国人民解放军61489部队 | Pen type free field pressure sensor calibration device |
| CN106706209A (en) * | 2016-12-30 | 2017-05-24 | 南京理工大学 | Automatic pulse pressure excitation device for quasi-state calibration |
| CN107860507A (en) * | 2017-10-31 | 2018-03-30 | 南京卓砾智测控技术有限公司 | Pressure sensor calibration force snesor and its calibration method |
| CN108593199A (en) * | 2017-02-27 | 2018-09-28 | 综合测试电子系统有限公司 | Test device, test system and method for test mechanical pressure sensor |
| CN109374202A (en) * | 2018-11-12 | 2019-02-22 | 尚廷东 | A kind of fluid pressure type power calibrating installation |
| CN109946018A (en) * | 2019-04-25 | 2019-06-28 | 黑龙江大学 | A kind of dynamic calibration apparatus of the adjustable fibre optic compression sensor of range |
| CN110307932A (en) * | 2019-07-12 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | Gas pulses pressure generator and pressure method for generation based on impact switching |
| CN111220325A (en) * | 2019-12-02 | 2020-06-02 | 中国航空工业集团公司北京长城计量测试技术研究所 | Sine pressure generation method |
| CN111998995A (en) * | 2020-09-06 | 2020-11-27 | 南京理工大学 | Buffer for quasi-static calibration of minimum-range pressure system and design method |
| CN112484914A (en) * | 2020-10-30 | 2021-03-12 | 南京理工大学 | Quasi-static air pressure calibration device of minimum range pressure system and design method |
| CN112834112A (en) * | 2021-01-04 | 2021-05-25 | 郑州东辰科技有限公司 | Force standard device and hydraulic bearing device |
| CN113340525A (en) * | 2021-06-07 | 2021-09-03 | 安徽工业大学 | Method for acquiring working characteristic parameters of piezoelectric pressure sensor for implementing quasi-static calibration |
| CN113970404A (en) * | 2021-10-18 | 2022-01-25 | 中国航空工业集团公司北京长城计量测试技术研究所 | High-temperature pulse pressure calibration device |
| CN117782426A (en) * | 2023-12-29 | 2024-03-29 | 北京理工大学 | Calibration device, sensitivity calibration method and linearity error calibration method |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712740A (en) * | 2014-01-09 | 2014-04-09 | 中国人民解放军总参谋部工程兵科研三所 | Dynamic high-pressure calibration device of flat type pressure sensor |
| CN103712740B (en) * | 2014-01-09 | 2016-05-18 | 中国人民解放军总参谋部工程兵科研三所 | Flat pressure sensor dynamic high-pressure calibrating installation |
| CN104614124A (en) * | 2014-11-05 | 2015-05-13 | 中国航空工业集团公司北京长城计量测试技术研究所 | Small magnitude pulse force generation device |
| CN104444978A (en) * | 2014-11-14 | 2015-03-25 | 杜文 | Gravity hydraulic booster |
| CN105486450A (en) * | 2015-12-10 | 2016-04-13 | 中国航空工业集团公司北京长城计量测试技术研究所 | Wide-range pulse force calibration device |
| CN105806555B (en) * | 2016-04-14 | 2018-08-07 | 宝鸡石油钢管有限责任公司 | Shackle device complete machine torsion calibration device and calibration method in a kind of vertical tubing and casing of one |
| CN105806555A (en) * | 2016-04-14 | 2016-07-27 | 宝鸡石油钢管有限责任公司 | Complete machine torque calibration device and method for integrated three-dimensional oil casing makeup and breakout device |
| CN106525331A (en) * | 2016-11-25 | 2017-03-22 | 中国人民解放军61489部队 | Pen type free field pressure sensor calibration device |
| CN106706209A (en) * | 2016-12-30 | 2017-05-24 | 南京理工大学 | Automatic pulse pressure excitation device for quasi-state calibration |
| CN106706209B (en) * | 2016-12-30 | 2019-03-05 | 南京理工大学 | A kind of full-automatic pulse exciting bank for quasi-static calibration |
| CN108593199A (en) * | 2017-02-27 | 2018-09-28 | 综合测试电子系统有限公司 | Test device, test system and method for test mechanical pressure sensor |
| CN107860507A (en) * | 2017-10-31 | 2018-03-30 | 南京卓砾智测控技术有限公司 | Pressure sensor calibration force snesor and its calibration method |
| CN109374202A (en) * | 2018-11-12 | 2019-02-22 | 尚廷东 | A kind of fluid pressure type power calibrating installation |
| CN109946018A (en) * | 2019-04-25 | 2019-06-28 | 黑龙江大学 | A kind of dynamic calibration apparatus of the adjustable fibre optic compression sensor of range |
| CN110307932A (en) * | 2019-07-12 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | Gas pulses pressure generator and pressure method for generation based on impact switching |
| CN110307932B (en) * | 2019-07-12 | 2020-12-11 | 中国航空工业集团公司北京长城计量测试技术研究所 | Gas pulse pressure generator based on impact switching and pressure generation method |
| CN111220325B (en) * | 2019-12-02 | 2021-07-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | Sine pressure generation method |
| CN111220325A (en) * | 2019-12-02 | 2020-06-02 | 中国航空工业集团公司北京长城计量测试技术研究所 | Sine pressure generation method |
| CN111998995A (en) * | 2020-09-06 | 2020-11-27 | 南京理工大学 | Buffer for quasi-static calibration of minimum-range pressure system and design method |
| CN111998995B (en) * | 2020-09-06 | 2022-02-18 | 南京理工大学 | Buffer for quasi-static calibration of minimum-range pressure system and design method |
| CN112484914B (en) * | 2020-10-30 | 2022-04-19 | 南京理工大学 | Quasi-static air pressure calibration device of minimum range pressure system and design method |
| CN112484914A (en) * | 2020-10-30 | 2021-03-12 | 南京理工大学 | Quasi-static air pressure calibration device of minimum range pressure system and design method |
| CN112834112A (en) * | 2021-01-04 | 2021-05-25 | 郑州东辰科技有限公司 | Force standard device and hydraulic bearing device |
| CN112834112B (en) * | 2021-01-04 | 2023-01-06 | 郑州东辰科技有限公司 | Force standard device and hydraulic bearing device |
| CN113340525A (en) * | 2021-06-07 | 2021-09-03 | 安徽工业大学 | Method for acquiring working characteristic parameters of piezoelectric pressure sensor for implementing quasi-static calibration |
| CN113340525B (en) * | 2021-06-07 | 2022-08-23 | 安徽工业大学 | Method for acquiring working characteristic parameters of piezoelectric pressure sensor for implementing quasi-static calibration |
| CN113970404A (en) * | 2021-10-18 | 2022-01-25 | 中国航空工业集团公司北京长城计量测试技术研究所 | High-temperature pulse pressure calibration device |
| CN117782426A (en) * | 2023-12-29 | 2024-03-29 | 北京理工大学 | Calibration device, sensitivity calibration method and linearity error calibration method |
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Application publication date: 20130814 |