DEVICE FOR MEASURING TENSION VALUE OF TUBE IN «STRAW» DETECTORS Russian patent published in 2015 - IPC G01L1/14 

FIELD: measurement equipment.

SUBSTANCE: device includes a high-voltage generator of variable frequency, which is intended for electrostatic excitation of tube vibrations, which is connected through a separating capacitor to a converter of amplitude of tube vibrations to an electrical signal, the output of which is connected to an ADC input. An ADC output is connected to a computer. The generator output is also connected to an additionally introduced supporting electrode installed parallel to the axis of the measured tube at the distance providing for electrostatic excitation of its vibrations with an excitation signal frequency and located together with the vibration amplitude converter. For interlocking of vibrations of the electrode, the weight of the latter exceeds the weight of the tested tube, and the tube is connected to a zero conductor of the high-voltage generator, and at scanning of frequency of the high-voltage generator, the computer software determines maximum amplitude of tube vibrations, which is achieved on resonant frequency.

EFFECT: possibility of contactless excitation of tube vibrations and avoiding distortions of frequency and shape of its vibrations.

2 cl, 3 dwg