Calibrating method for flexible pressure sensor array
A technology of sensing array and calibration method, applied in the direction of force/torque/work measurement instrument calibration/test, measurement device, instrument, etc., can solve the problem of low calibration accuracy, improve calibration accuracy, improve performance, ensure accurate degree of effect
Active Publication Date: 2019-08-27
SHANGHAI JIAO TONG UNIV
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[0006] The invention provides a calibration method of a flexible pressure sensing array, which is used to solve the problem of low calibration accuracy of the existing calibration method, so as to ensure the accuracy of the measurement results of the flexible pressure sensing array and improve the performance of the flexible pressure sensing array
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[0034] The specific implementation of the calibration method for the flexible pressure sensing array provided by the present invention will be described in detail below in conjunction with the accompanying drawings.
[0035] This specific embodiment provides a method for calibrating a flexible pressure sensing array, with figure 1 It is a flowchart of the calibration method of the flexible pressure sensing array in the specific embodiment of the present invention, with figure 2 It is a structural schematic diagram of calibrating a flexible pressure sensing array in a specific embodiment of the present invention. Such as figure 1 , figure 2 As shown, the flexible pressure sensor array 21 includes a plurality of sensors arranged in an array, and each sensor is a pixel point 22 . The calibration method of the flexible pressure sensing array provided in this specific embodiment includes the following steps:
[0036] Step S11 , sequentially applying a plurality of pressures o...
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The invention relates to the technical field of pressure sensors, in particular to a calibrating method for a flexible pressure sensor array. The calibrating method for the flexible pressure sensor array comprises the following steps: applying a plurality of pressures with different sizes to the whole flexible pressure sensor array in sequence to obtain the responding characteristic value of eachpixel under each pressure; obtaining the basic calibrating formula of each pixel; providing a compensating calibrating function; obtaining the compensating calibrating formula of each pixel; calculating the product of the basic calibrating formula and the compensating calibrating formula of each pixel so as to take the product as the calibrating formula of the pixel. According to the calibrating method, the calibration accuracy of a single pixel is improved, the accuracy for the measuring result of the flexible pressure sensor array is guaranteed, and the performance of the flexible pressure sensor array is improved.
Description
technical field [0001] The invention relates to the technical field of pressure sensing, in particular to a calibration method for a flexible pressure sensing array. Background technique [0002] The flexible pressure sensing array can detect the location and distribution of pressure and the pressure in each area, and can be applied to wearable electronic devices, environmental monitoring, human-computer interaction interface, electronic skin and other fields, and has broad application prospects. [0003] However, due to the defects such as creep, inconsistency, and attenuation of the flexible pressure sensing array itself, the detection accuracy during use cannot be maintained for a long time. However, the detection accuracy is a key factor to measure the performance of the flexible pressure sensing array. Therefore, at present, regular calibration of the flexible pressure sensing array is mainly used to ensure its measurement accuracy. [0004] The traditional calibration...
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Login to View More IPC IPC(8): G01L25/00
CPCG01L25/00
Inventor 郭小军陈苏杰范博宇章秋琦
Owner SHANGHAI JIAO TONG UNIV