Abstract: Provided is a piezo-resistive pressure sensor that realizes sensitive and accurate measurement of pressure, by reducing the variation of electrical conduction due to thermal variation in piezo resistance elements, without lowering the sensitivity of measurement. Piezo-resistance sections R1, R2, R3 and R4 are arranged on diaphragm 31, near the border between diaphragm 31 and support section 32. By this means, pressure can be measured with high sensitivity. The area of a part where a group of piezo-resistance elements are placed, and the outer shape of that part, are the same between piezo-resistance sections R1, R2, R3 and R4. By this means, piezo-resistance sections R1, R2, R3 and R4 have uniform temperature distribution and reduce the variation of electrical conduction due to thermal variation in piezo resistance elements.

Abstract: An electronic apparatus includes a sensor unit including a sensing device and configured to transmit detection data acquired with the sensing device; a computing device configured to receive the detection data and compute the corrected value of the detection data; and a memory containing, together with identification information, correction information for computing the corrected value A characteristic of the corrected value is switched by the computing device switching, in accordance with the identification information contained in the memory, a correcting operation method for computing the corrected value using the correction information contained in the memory.

Abstract: An electronic apparatus includes a sensor unit including a sensing device and configured to transmit detection data acquired with the sensing device; a computing device configured to receive the detection data and compute the corrected value of the detection data; and a memory containing, together with identification information, correction information for computing the corrected value A characteristic of the corrected value is switched by the computing device switching, in accordance with the identification information contained in the memory, a correcting operation method for computing the corrected value using the correction information contained in the memory.

Abstract: Provided is a piezo-resistive pressure sensor that realizes sensitive and accurate measurement of pressure, by reducing the variation of electrical conduction due to thermal variation in piezo resistance elements, without lowering the sensitivity of measurement. Piezo-resistance sections R1, R2, R3 and R4 are arranged on diaphragm 31, near the border between diaphragm 31 and support section 32. By this means, pressure can be measured with high sensitivity. The area of a part where a group of piezo-resistance elements are placed, and the outer shape of that part, are the same between piezo-resistance sections R1, R2, R3 and R4. By this means, piezo-resistance sections R1, R2, R3 and R4 have uniform temperature distribution and reduce the variation of electrical conduction due to thermal variation in piezo resistance elements.