Constant current source two-way charging by switching obtain mutual inductance characteristics of LVDT
Ouyang Bin-li · Dongbei Nongye Daxue xuebao · 2013
This paper introduced the mutual inductance measurement which was charging with the constant current circuit and discharging through a diode by switching two-winding transformer, and timing during stable discharge of primary coil and sampling the open circuit voltage of secondary coil, and took it to LVDT charging bidirectionaly for mutual inductance characteristics. It also discussed the principle and designed the test circuit, focuses on the capture sampling pulse the height of the secondary coil, acquire and analysis the mutual inductance characteristics under different conditions. Experiments and data analysis proved the LVDT must be balanced, at the center of displacement.