Non electrical quantity measurement - uses transmitter connected to one input of zero element controlling switches of resistor matrix

摘要

A non-electrical quantity measuring system uses a transmitter connected to one input of a zero element which controls switches of a resistor matrix. The transmitter converts the non-electrical quantities to electrical signals. The matrix is connected to the output of a sequencer and to a second input of the zero element to secure equality between the output voltage of the matrix and the voltage of the transmitter. - Integrators (6, 7) are connected to the transmitter (1) of the non-electrical quantities and the sequencer (2) for deviations of the transmitter supply via synchronously controlled switches (8). The first integrator (6) is connected to the zero element (16) and the second (7) to the matrix (3).