REGISTRATION SYSTEM OF INFRASOUND SIGNALS Russian patent published in 2017 - IPC G01H11/06 G01V1/22 

FIELD: physics.

SUBSTANCE: portable infrasound system consists of three modular wireless microphones, each of them comprises a polarized free field microphone used with the microphone amplifier and the follower on the operational amplifier, an analog-to-digital 24-bit converter of successive approximation (SAR), the conversion results of which are received at the main controller of the 32-bit microprocessor with a GPS-receiver through the galvanic isolation unit. Data from the GPS-receiver are used to anchor the measured data to the exact time and coordinates of the modular wireless microphone. The system also includes a radio modem transmitting data in the form of packets to the base module. The base module consists of three radio modems, a main controller, an interface converter COM-USB, a PC. At the same time the base module is connected to the computer through the converter of the main supply voltages, and the modular wireless microphone has a battery that provides the wireless microphone with power through the converter of the main voltages.

EFFECT: increasing the efficiency of the system by providing the wireless data transmission.

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