PURPOSE:To measure the pressure distribution at the grip section of a hand of a robot economically by sweeping outputs of a number of pressure detecting sections arranged in a matrix in terms of axis-of-ordinate address and axis-of- abscissa address to perform an arithmetic processing of the results for temperature compensation. CONSTITUTION:A number of pressure detecting sections 1 of a semiconductor strain gauge are combined with thermistor temperature detection elements 18 set by set and outputs thereof are inputted into an axis-of-ordinate address 19 and then, into an axis-of-abscissa address 20. Then, after amplified with an amplification circuit section 16, they are inputted into a microcomputer section 17 to perform an arithmetic processing on a pressure signal for temperature compensation and the results are outputted from an output circuit 37. At this point, according to a command from a CPU33, detection is performed with many pressure detecting sections 1 sequentially and outputs thereof are swept to perform an arithmetic processing for the pressure distribution as a whole. This eliminates the need for preparing computers for the pressure detecting sections 1 one per each thereby enabling the measurement of the pressure distribution economically.
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