SU1509615A1 - Meter of vibration parameters - Google Patents

Abstract

This invention relates to instrumentation technology. The purpose of the invention is to increase accuracy and sensitivity by eliminating the interaction forces between the inertial mass and the transducer, moving it into an electrical signal and expanding the range of frequencies of monitored vibrations due to the adjustment of the natural frequency of the meter. The meter consists of an elastic element 2, an inertial mass 3 with shutters 4 and two optoelectronic pairs 5. The elastic element 2 is made in the form of a membrane with a sealed cavity 9, the change in pressure in which changes the stiffness of the elastic element 2. 1 Cp. , 1 Il.

Description

one

(21) 4219888 / 24-28

(22) 04/01/87

(46) 09/23/89. Bksh. No. 35

(71) Dnipropetrovsk Institute of Chemical Technology

(72) D.S.Kovalchuk, Yu.K.Taranenko and V.D.Kovalchuk

(53) 531.7 (088.8)

(56) USSR Copyright Certificate No. 962769, cl. G 01 H 1/00, 1982.

(54) VIBRATION PARAMETER METER

(57) The invention relates to instrumentation technology. The purpose of the invention is to improve the accuracy and

sensitivity by eliminating the forces of interaction between the inertial mass and the transducer, its movement into an electrical signal, and expanding the range of frequencies of controlled vibrations due to the adjustment of the natural oscillation frequency of the meter. The meter consists of an elastic element 2, an inertial mass 3 with shutters 4 and two optoelectronic pairs 5, the elastic element 2 is made in the form of a membrane with a sealed cavity 9, the change in the pressure in which changes the stiffness of the elastic element 2. 1. . dr-jibi

The invention relates to instrumentation technology and can be used to control the vibration of objects.

The purpose of the invention is to increase accuracy and sensitivity by eliminating the interaction forces between the inertial mass and the transducer, moving it into an electrical signal and expanding the frequency range of monitored vibrations by making it possible to re-adjust its own oscillation frequency of the meter.

The drawing shows the block diagram of the proposed meter.

The meter consists of a body 1, an elastic element 2 fixed in the body 1, an inertial mass 3 fixed on the elastic element 2, two curtains 4, two optoelectronic pairs 5 placed inside the body 1 and optically connected with the curtains 4, the power source 6, The meter 7, the LEDs of the optoelectronic pairs 5 are connected to the inputs of the meter 7 and the pressure sensor 8. The elastic element 2 is made in the form of a membrane, provided around the perimeter with a sealed cavity 9, which communicates with the pressure gauge 8.

The meter works as follows.

The meter case is installed on a controlled object, whose vibration causes movement of the inertial mass 3, while the blades 4

block the light fluxes of optoelectronic pairs 5, which causes a change in the signal at the inputs of the meter 7, the amplitude of which is proportional to the amplitude of the vibration of the object.

The change in pressure in the sealed cavity 9 with the help of the pressure setting device 8 leads to a change in the stiffness of the elastic element 2, which leads to a change in the natural frequency of oscillation of the meter.

Claims (2)

1. A vibration parameter meter comprising a body, an elastic element fixed in the body, an inertial mass fixed on the elastic element, and two transducers moving an inertial mass into an electrical signal fixedly mounted in the body, characterized in that, in order to improve accuracy and sensitivity It is equipped with two shutters fixed to an inertial mass, and the transducers are made in the form of optoelectronic pairs optically connected with the shutters. 2. Pop-1 meter, characterized in that, in order to expand the frequency range of control of vibrations, it is equipped with a pressure sensor, and the elastic element is made in the form of a membrane with a hermetic cavity around the perimeter connected with the pressure unit.