JPH01135305U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a block diagram of the overall configuration of the secondary side measurement circuit of the differential transformer type displacement detector according to the present invention, Figure 2 is a diagram showing the relationship between core position and induced voltage, and Figure 3 is the core position. It is a figure which shows the output waveform in each part with respect to FIG. 10...Differential transformer, 12...Primary side coil, 14
... Secondary side coil, 18 ... Core, 20 ... Buffer circuit, 22 ... Rectifier circuit, 24 ... Adder circuit.

Claims (1)

[Claims for Utility Model Registration] A difference in which alternating current voltage is supplied to the primary coil and displacement of the core placed between the primary coil and the secondary coil is detected as a change in the output voltage of the secondary coil. In the secondary side measurement circuit of a dynamic transformer type displacement detector, there is a rectifier circuit that rectifies the signals induced in the two sets of secondary coils into positive and negative polarities through a buffer circuit, and a A second aspect of the differential transformer type displacement detector, comprising: an adder circuit for adding output signals; and the output signal from the adder circuit is passed through a predetermined amplification/rectification circuit to obtain a DC signal. Next side measurement circuit.