FIELD: measurement technology.
SUBSTANCE: invention relates to telemetry, in particular, to transmission and reception of pulse signals through an air gap, and can be used in systems for transmitting and receiving data from working members of rotating assemblies and mechanisms. On rotary part of device pulses of bits of information code are used to generate signals of primary circuit excitation inductively coupled circuits, secondary circuit of which is separated from it by an air gap and is located on fixed part of device, which also contains two comparators, input of one of which is connected to secondary circuit, at that, from excitation bits generating such excitation signals, which when transmitting a single code bit cause secondary circuit output bipolar pulses, which are processed by both comparators with thresholds equal to half the amplitude of each of the pulses respectively, which output signals are combined according to the OR circuit and supplied to the control input of the switch, through which the positive threshold of the first comparator is connected to the input of the integrator, output of which is connected to input of third comparator, using threshold, value of which is selected based on parameters of bipolar pulses and intensity of noise, integrator is zeroed at the end of each digit of the code, at the output of the third comparator, values of bits of the data code transmitted through the air gap are obtained.
EFFECT: technical result consists in improvement of noise immunity of transmission and reception of data code bits.
2 cl, 3 dwg
