Unlike traditional seismic sensors, molecular-electronic ones use a liquid inertial mass. A sensitive element inside consists of a system of electrodes attached to the body. These electrodes convert an alternating flow of a working liquid caused by the inertia force into a variation of an electric current between electrodes.
Meanwhile, a high ratio of mechanical signal conversion into an electric current and a wide frequency and dynamic ranges are achieved. These properties, in particular, provide a possibility to make seismic sensors of a cutoff frequency at low frequencies up to thousandths of a hertz, high sensitivity and low noise level.
The use of deep feedback provides characteristics identical to the level of 0.2%.
No moving components of precision mechanics and a relative simplicity of the structure provide a high reliability to such devices and resistance to adverse external influences inevitable while transporting and operating in the field.