Digital demodulation method and device for LVDT or RVDT signal

The invention provides a digital demodulation method for LVDT or RVDT signals. The method comprises the following steps: acquiring high and low end signals of each redundancy in an LVDT or RVDT sensor to obtain signal digital quantities of a plurality of channels; and performing integral operation on the signal digital quantity to obtain the waveform area of the signal, and calculating the difference value of the waveform area of the high-end signal and the waveform area of the low-end signal to obtain the effective value of the sensor sampling signal of each redundancy so as to complete the digital demodulation of the LVDT or the RVDT. Compared with traditional analog demodulation, the LVDT/RVDT digital demodulation method provided by the invention has the advantages of simple principle, small size, high integration level, high reliability, strong anti-interference capability and the like, and is strong in practicability. 本申请提供一种用于LVDT或RVDT信号的数字解调方法，所述方法包括：采集LVDT或RVDT传感器中每个余度的高低端信号得到多个通道的信号数字量；对所述信号数字量进行积分运算