FIELD: security systems; electrical equipment.
SUBSTANCE: invention relates to the field of protected and specially protected objects with increased requirements to their safety ensuring remote identification and control. For this, the energy-independent transponder contains the transceiver antenna connected to the delay line on the surface acoustic waves, common input / output converter and reflective elements. Reflective elements are made in the form of interdigital transducers, to which terminals the m threshold or analog sensors are connected for the protected object state monitoring. Input / output converter consists of n bi-directional interdigital transducers connected by slanted potential buses. Input / output converter is made compatible with the external wave path and is connected to the transceiver antenna by the coaxial cable.
EFFECT: technical result is the energy-independent transponder development with the protected object state monitoring sensors and increase in its operation range.
3 cl, 3 dwg
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