FIELD: instruments, in particular, measurement of non-electric characteristics using resistance, inductance and capacitance detectors. SUBSTANCE: method involves measurement of duration of transient processes in resistor-capacitor or resistor-inductance circuit by means of application of exciting voltage to measuring circuit, alternation of exciting voltage using function which has at least two identical pieces each of which has two linear measuring circuits with zero curvature and two exciting pieces. Simultaneously method involves generation of reference alternating voltage which corresponds to these two pieces and has linear reference pieces with zero curvature each of which is defined for time of corresponding linear measuring piece of pair. Voltage at measuring circuit element during first and second linear measuring pieces of pair is compared to reference voltage. Additional time interval is added between moments when voltage levels are equal. Then these voltage levels are compared during time intervals of third and fourth linear measuring pieces of pair. Additional second time interval is added between moments when voltage levels are equal. Generated time intervals or their equivalents are subjected to subtraction which provides information about characteristic to be measured. EFFECT: increased precision of measurements due to decreased error caused by instability of delay in signal transmission. 3 cl, 4 dwg
