Asynchronous and accurate calibration system for flexible bend sensor

Abstract

The invention discloses an asynchronous and accurate calibration system for a flexible bend sensor, and belongs to the technical field of angle parameter calibration. The system comprises a step sliding table, a bend sensor clamping device, an adjustable beam, and a control circuit. The system comprehensively realizes the function of angle calibration by using a control chip, a displacement sensor, a temperature sensor, a humidity sensor, a pneumatic sensor, a micro air pump etc., and realizes the function of simultaneously calibrating a plurality of angle sensors by placing a plurality of motors on the motor slide rails, thereby overcoming the disadvantages of only calibrating a single angle in prior art. The system can be adjusted according to the length of the bend sensor, and has highadaptability. The system has proven mathematical theory support that a calibration formula for modeling is derived based on spatial coordinates and resistance values. The system is small in size, easyto manufacture, compact in structure and convenient in operation, and is suitable for calibration of angle parameters.

Description

technical field [0001] The invention relates to the technical field of angle parameter calibration, in particular to an asynchronous and precise calibration system for a flexible bending sensor. Background technique [0002] As a new type of sensor, the flexible bending sensor is widely used to measure the angle of the system because it is based on the change of resistance or capacitance when the highly elastic material is deformed. However, due to process and operation reasons, each flexible sensor has large individual differences. It is difficult to accurately calibrate different sensors using the same change law, so each bending sensor needs to be calibrated to obtain the usage law of each bending sensor, so the calibration device came into being. [0003] Most of the current angle calibration devices use X-rays, lasers, marble platforms, etc. An existing angle calibration device for medical equipment (Chinese invention patent CN106821403A) uses X-ray radiation C-arm tech...

AI Technical Summary

Problems solved by technology

[0002] As a new type of sensor, the flexible bending sensor is widely used to measure the angle of the system because it is based on the change of resistance or capacitance when the highly elastic material is deformed. However, due to process and operation reasons, each flexible sensor has large individual differences. It is difficult to accurately calibrate different sensors with the same change law, so it is necessary to calibrate each bending sensor to obtain the usage law of each bending sensor, so the calibration device came into being

[0003] Most of the current angle calibration devices use X-rays, lasers, marble platforms, etc. An existing angle calibration device for medical equipment (Chinese invention patent CN106821403A) uses X-ray radiation C-arm technology, but it still needs to be used during use. It has radiation risks, long-term operation will cause great harm to the human body, and it is uneconomical, inconvenient to operate, and has limitations in measurement

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