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Tension sensor static calibration device and method in weightless environment

A tension sensor, static calibration technology, applied in the direction of measuring devices, instruments, force/torque/power measuring instrument calibration/testing, etc., can solve the problem that the traditional calibration method is no longer applicable, achieve accurate calibration, and avoid the effect of weightlessness

Inactive Publication Date: 2019-04-30
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that the traditional calibration method is no longer applicable in a weightless environment, the present invention proposes a static calibration device and method for tension sensors in a weightless environment

Method used

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  • Tension sensor static calibration device and method in weightless environment
  • Tension sensor static calibration device and method in weightless environment
  • Tension sensor static calibration device and method in weightless environment

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Embodiment Construction

[0028] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] The present invention designs a static calibration device for tension sensors in a weightless environment, such as Figure 1-5 As shown, it includes chassis 1, dial 2, housing 3, support column 4, servo motor 5, gears 6 and 7, shaft 8, bearings 9, 10 and 11, fine-tuning arm 12, fine-tuning knob 13, tension sensor 14, standard Mass counterweight 15, string 16, balance beam 17, scale 18, sensor cable 19, small hole 20, slip ring 21, brush 22 and beam 23.

[0030] Chassis 1 needs to be fixed on the workbench. The rotating shaft 8 runs through the chassis 1 and the dial 2, and is connected with the chassis 1, the dial 2 and the beam 23 through bearings 9, 10, 11 respectively, and can rotate freely. The support column 4 supports and fixes the dial 2 . The casing 3 closes the periphery of the device. There is a scale 18 on the upper su...

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Abstract

The invention discloses a tension sensor static calibration device and method in weightless environment. The device comprises a chassis and a shell mounted on the chassis; a dial is fixed on the chassis through a supporting column, and a graduated scale is arranged on the upper surface of the dial; a rotating shaft penetrates through the chassis and the dial and is connected with the chassis and the dial through bearings; the lower end of the rotating shaft is provided with a first gear; a servo motor is mounted on the chassis, a second gear is arranged on an output shaft of the servo motor, and the second gear is perpendicular to and meshed with the first gear; the rotating shaft is connected with a fine tuning arm; the fine tuning arm is positioned above the dial, and a distance is formed between the fine tuning arm and the dial; one end of the fine tuning arm is connected with one end of a tension sensor to be calibrated through a string, the other end of the tension sensor is connected with a standard mass balance weight through a string, a fine tuning knob for adjusting the telescopic length of the fine tuning arm is arranged on the fine tuning arm, and a balance beam is arranged on the opposite side of the fine tuning arm. The problem that a conventional calibration method is not suitable for a weightless environment is solved.

Description

technical field [0001] The invention belongs to the technical field of measurement and calibration, and in particular relates to a static calibration device and method for a tension sensor in a weightless environment. Background technique [0002] Tension sensors are widely used on space stations or spacecraft, and the accuracy of these tension sensors will change with the use time and temperature. Over time, the sensor will drift to a certain extent, and it is necessary to calibrate it at this time. When on the ground, the method of applying different mass weights to generate corresponding standard forces is often used to statically calibrate the tension sensor. In a weightless environment such as a spacecraft or a space station, this method is no longer applicable. Contents of the invention [0003] In order to solve the problem that the traditional calibration method is no longer applicable in a weightless environment, the present invention proposes a static calibratio...

Claims

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Application Information

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IPC IPC(8): G01L25/00
CPCG01L25/00
Inventor 李宇辉赵敏王松松姚敏郭瑞鹏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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