| 摘要 |
PURPOSE:To make a high-accuracy linearizing correction of diverse nonlinear outputs by detecting the level of the output of a main amplifying circuit connected to a bridge circuit for converting the output of a detecting element and correcting a bridge voltage by output sections. CONSTITUTION:The output V1 of the bridge circuit 1 for converting the output of the detecting element is connected to a main amplifying circuit 2, section detecting circuits 10, 11, and 12 are connected to the output V0 of the circuit 2 in parallel, and further the circuits 10, 11, and 12 are connected to variable resistances 14, 15 and 16 respectively. Then specific input values VS1, VS2, and VS3 are set in the circuits 10, 11, and 12 and a voltage V0, corresponding to the output V0 of the circuit 2 is applied as a common input to the circuits 10, 11, and 12. Consequently, none of the circuits 10, 11 and 12 generates an output when the output V0 is smaller than a set value and when the output V0 exceeds the set value, currents proportional the excess are generated by the movable resistances 14a, 15a, and 16a, so the positions of the contactors 14a, 15a and 16a are adjusted to adjust the input voltage VB of the circuit 1 through a correcting amplifier circuit 17, thereby linearizing the output V0 of the circuit 2. |
