PURPOSE: To enhance setting accuracy by setting a voltage dividing ratio, with fixed resistors inserted between gage resistors and between dummy resistors, respectively, as a set reference.
CONSTITUTION: The fixed resistor r3 is inserted between a pair of the dummy resistors r1 and r2. Output terminals are taken out of the central points of the fixed resistor r and the central point of the fixed resistor r3. The value of said fixed resistors r and r3 are determined to be 1/40 or less the values of the gage resistors R1 and R2 and the dummy resistors r1 and r2, respectively. In this circuit, since the setting of the voltage dividing ratio is performed, with the fixed resistors being inserted between the gage resistors and between the dummy resistors, respectively, as a set reference, the set accuracy can be made sufficiently high. Thus, the highly accurate temperature compensation for the pressure sensitivity and the null point can be achieved.
NODA RIYUUZOU