SU1702187A1 - Three-component vibration transducer - Google Patents

Abstract

The invention relates to a vibration technique and is intended to convert spatial vibration into an electrical signal. The purpose of the invention is to simplify the design by creating a gas lubricant in the suspension assembly of a spherical inertial element by exciting ultrasonic vibrations of the spherical backing and increasing sensitivity due to the super-regenerative activation of the displacement sensor of the inertial spherical element. When the vibration transducer case 1 oscillates, the contactless sensors 6-8 move in space relative to the spherical inertial element 2, which remains stationary in space, hanging on the gas lubricant above the spherical support 12. These movements of the contactless sensors are fixed by converters 3-5 movements. At the output of transducers 3-5, three signals are received, proportional to the respective movements of the proximity sensors. The ultrasonic oscillations of the spherical reed are excited by means of a piezoelectric element interacting with the latter through a concentrator. 1 silt, cr with

Description

The invention relates to a vibration technique and is intended to convert spatial vibration into an electrical signal.

The purpose of the invention is to simplify the design.

The drawing shows a block diagram of a three-component vibration transducer.

The three-component vibration transducer includes a housing 1, a spherical inertial element 2, three transducers 3, 4 and 5 movements into an electrical signal, made according to the scheme of superregenerators, with contactless sensors 6, 7 and 8 mounted on the housing so that their axes of sensitivity coincide with X, Y, Z orthogonal coordinate system, the beginning of which is aligned with the center of the spherical inertial element 2, and the suspension assembly 9, made in the form of a reflector 10 mounted on the housing 1, of the concentrator 11 with a spherical backing 12 for spherical inertial element 2 and the liner 13 of the piezo material connected to the high-frequency generator 14,

Three-component vibrator works as follows.

When the vibration transducer housing 1 oscillates together with the housing, the contactless sensors 6-8 move in space relative to the spherical inertial element 2, which remains stationary in space, hanging on the gas lubricant above the spherical bolster 12,

Gas lubrication is created as follows.

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When applying voltage from the high-frequency generator 14 to the insert 13 of the piezo material in the system reflector 10 - insert 13 - concentrator 11 mechanical oscillations occur. The hub 11 at the resonant mechanical oscillations of the system increases the amplitude of the mechanical oscillations of the spherical reamer 12. When the spherical reamer 12 oscillates between it and the surface of the spherical inertial element 2, a gas lubricant layer appears on which the inertial element 2 floats.

The movements of the proximity sensors 6-8 are fixed by displacement transducers. Three electrical signals are present at the output of the transducers 3-5, which are proportional to the corresponding movements of the proximity sensors 6-8.

The implementation of displacement transducers according to the scheme of superregenerators with the inclusion of contactless sensors in the positive feedback circuit significantly increases the sensitivity of the vibration transducer.

Claims (1)

The invention The three-component vibration transducer, comprising a housing, a spherical inertial element, a suspension assembly of a spherical inertial element with gas lubrication and three transducers of movement into an electrical signal with contactless sensors mounted on the housing so that their sensitivity axes coincide with the axes of the orthogonal coordinate system X, Y , Z, the beginning of which is combined with the center of the spherical inertial element, characterized in that, in order to simplify the construction, the suspension assembly of a spherical inertial element with gas lubrication is made in the form of a reflector mounted on the housing, a piezoelectric element mounted on the reflector, a concentrator with a spherical inlet for a spherical inertial element and a high-frequency generator connected to the piezoelectric element.