ACCELERATION MEASURING DEVICE Russian patent published in 2023 - IPC G01P15/08 

FIELD: measurement technology.

SUBSTANCE: invention can be used to measure apparent acceleration in systems for stabilization, orientation and navigation of moving objects and track-measuring complexes. The essence of the first variant of the invention is that n micromechanical accelerometers are used, rigidly fixed on one base, the sensitivity axes of all n micromechanical accelerometers are parallel to the sensitivity axis of the sensor. In this case, the output of each micromechanical accelerometer is connected to the corresponding input of the adder, the output signal of the adder is fed to the input of the attenuator with an adjustable attenuation coefficient equal to the number of micromechanical accelerometers. The essence of the second embodiment of the invention lies in the fact that the sensitive elements of micromechanical accelerometers are made in the form of multi-level single-crystal modules, and electronic converters are introduced for each sensitive element. In this case, a median calculator, a digital adder, a temperature sensor, a microprocessor calculator and a digital filter and a serial interface connected in series are additionally introduced. The outputs of each electronic acceleration converter are connected to the inputs of the digital adder and to the inputs of the median calculator, the output of which is connected to the input of the digital adder, and the outputs digital adder are connected to the information inputs of a microprocessor computer, the output of which is connected to the input of a digital filter.

EFFECT: reduction in the noise component and zero drift of the device and, as a consequence, decrease in the sensitivity threshold and an increase in the accuracy of the device.

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