SU583373A1 - Output signal shaper for differential transformer transducers - Google Patents

Description

(54) OUTPUT SIGNAL FORMER

DIFFERENTIAL TRANSFORMER SENSORS

9583373

initial plots of increasing downward exponential. The frequency spectrum of such a signal, as well as the signal at the input of the link 3, is represented by the fundamental harmonic and the odd higher harmonics.

In this case, the amplitudes of the high harmonics have significantly smaller values, in connection with which the communication line between the driver and the sensor input 7 is not a source of high-frequency interference.

From the output of sensor 7, the signal as a sequence of trapezoidal pulses is fed to the input of demodulator 1, the reference signal of which is the rectangular pulses of oscillator 2. The output signal of sensor 7 is slightly distorted by the communication line. In addition, the demodulator 1, with such forms of the input and reference signals introduces a smaller error.

Claims (1)

4 claims A shaper of the output signal of differential transformer sensors, containing a demodulator, whose information input serves as the input of the shaper, and the output-output of the shaper, the input of the demodulator reference signals is connected to the first output of the stabilized square impulse generator, so that to improve the measurement accuracy It contains an integrating element connected between the second output of the stabilized square pulse generator and the control output of the driver. Sources of information taken into account in the examination: 1. USSR author's certificate No. 206357, cl. G 08 C 9/04, 1966. 12. USSR author's certificate No. 267385, cl. Q 08 C 9/04, 1968.