SU896423A1 - Three component vibrational converter - Google Patents

Description

(54) THREE-COMPONENT # VIBRO CONVERTER

I

The invention relates to vibrometry and is intended to measure the qpToronal composition of spatial and oscillatory motion.

A three-component vibro-transformation is known, containing a body, an inertial element in the form of a ball, placed in it, three electromechanical converters installed in mutually perpendicular planes, and three diametrically opposed to the last three elastic elements that interact with the inertial element centers, three additional elastic elements electromechanical center

A disadvantage of the known device is a narrow frequency range, due to its large size and weight.

The purpose of the invention is to expand the frequency range.

This goal is achieved by the fact that a three-component vibration transducer

it is equipped with three disks through which the ball interacts with the electrically-mechanical transformation of them mV, each of them is executed in the form of a set of 1SP piezoelectric washers, and the elastic elements are made in the form of discs.

FIG. 1 shows a three-component vibration transducer; in fig. 2 - the variant of the triple component

10 vibroconverters with differential output.

The device includes a housing 1, equiped therein an inerschunny elementary 2 in the form of a ball, three electromechanical

15 transducers installed in tto perpendicular plane planes, and once: three elastic 3 interlaced and oppositely opposed to each other, and their centers are from the interlaced rod

Claims (2)

PP element 2. A three-component vibrating transducer is equipped with three dask g 4, through which the ball 2 interacts (FROM with electromechanical transduction® bodies, each of which is completed as a set of parallel washers or disks 5 with conductive plates 6 between them, and the elements 3 are made in the form of discs. Preloading is carried out using ring nuts 7. Shielded cables 8 are connected to the solenoid plates 6, the shields of which are clamped between the ring nuts 7 and intermediate discs 9. Elastic elements You 3 rely on the annular grooves 1O. Case 1 can be filled with damping fluid 11. To insulate the piezoceramic washers 5 from body 1, there are tubes 12 of insulating material. In another embodiment (Fig. 2), instead of elastic elements 3 Electromechanical transducers are installed, which are made similarly to all other electromechanical transducers. The screened cables 8 can be connected laterally to the conductor plates 6 and combined into a common bundle passing through the cover 13. melts follows. When the housing 1 oscillates, each electromechanical transducer is deformed only under the influence of the inertia component of the inertia element 2 perpendicular to the plane of the piezoceramic washers 5. As a result, three signals, proportional to the composition of the vibratory process, are output at the vibrating transducer 1 output. 3 .4 The application of the invention allows to reduce the weight and reduce the size of the vibrator, which allows to expand the frequency range and improve the measurement accuracy. The use of a three-component vibration transducer with a differential output allows, in addition, to increase the sensitivity and increase noise immunity. Three-component vibroconversion, comprising a housing, an inertial ball-shaped element located therein, three electromechanical transducers installed in mutually perpendicular planes, and diametrically opposed to the last three elastic elements, interacting with centers of an inertial element, differing from that, in order to expand the frequency range, it is equipped with three disks through which the ball interacts with electromechanical converters, each of Shztpol'n of the heads are in the form of a set of piezoceramic washers arranged in parallel, and the elastic elements are made in the form of disks. Sources of information taken into account in the examination 1. USSR author's certificate NS 645035, cl. G 01 H 1/04, 1977. (prototype). eight / J Figg