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Half-sine quasi-static calibration device of force sensor

A technology of force sensor and calibration device, which is applied in the direction of measuring device, force/torque/power measuring instrument calibration/test, instrument, etc., and can solve problems such as measurement error

Inactive Publication Date: 2013-08-14
BEIJING MECHANICAL EQUIP INST
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Problems solved by technology

[0003] The purpose of the present invention is to provide a half-sine quasi-static calibration device for force sensors, which solves the measurement error problem caused by static calibration and dynamic measurement of force sensors

Method used

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  • Half-sine quasi-static calibration device of force sensor

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Embodiment Construction

[0010] A semi-sine quasi-static calibration device for a force sensor, comprising: an oil cylinder 4, hydraulic oil 5, a pressure valve 6, a hydraulic cylinder 8, and also includes: a weight 1, a piston 2, a piston adapter 3, a calibrator 9 and a bracket 7. The oil cylinder 4 is placed on a horizontal platform, the piston adapter 3 is a cylindrical device with external threads, the piston adapter 3 is threadedly connected to the top of the oil cylinder 4, the hydraulic oil 5 is placed in the oil cylinder 4, and 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 communicates with the oil inlet of the hydraulic cylinder 8, the hydraulic cylinder 8 is horizontally fixed on the bracket 7 with screws, the calibration meter 9 is connected with the hydraulic cylinder 8 by bolts, the sensor to be calibrated and the calibration meter 9 bolt connections, the weight 1 is suspended above ...

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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 [0001] The invention relates to a calibration device of a force sensor, in particular to a semi-sine quasi-static calibration device of a force sensor. Background technique [0002] At present, the calibration device of the force sensor generally includes a weight, an oil cylinder, hydraulic oil, a pressure valve, and a hydraulic cylinder. The calibration of the force sensor usually adopts the static calibration method, and a certain mass of weight is loaded on the force sensor to keep the force stable. However, in the actual test process, the force of the sensor is mostly dynamic, similar to a half-sine wave force pulse. Based on the response characteristics of the force sensor, there is a certain measurement error in the dynamic force test of the static calibration sensitivity test. Contents of the invention [0003] The object of the present invention is to provide a half-sine quasi-static calibration device for a force sensor, which solves the measurem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L25/00
Inventor 苏晓岗周中岳周建
Owner BEIJING MECHANICAL EQUIP INST
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