SU1224604A1 - Arrangement for measuring vibration parameters - Google Patents

Abstract

The invention relates to vibrometry and makes it possible to increase the measurement accuracy by expanding the measurement range. The goal is achieved by the fact that a device containing a switch, n amplifiers and n vibration converters and a generator, the output of which is connected to one of the inputs of the switch, is equipped with a block of AND elements and a register, switched on by a measuring block and a recorder, and the second; the generator output is connected to the second input block measurements. 1 il. (L with

Description

one

The invention relates to a measurement technique and can be used to measure the vibrations of gas turbine engines.

The purpose of the invention is to improve the accuracy and the expansion of the measurement range.

The drawing shows a block diagram of a device for measuring vibration parameters.

The device contains vibration transducers 1, amplifiers 2, switch 3, generator 4, measurement unit 5, block-6 elements AND, register 7 and recorder 8.

The device works as follows.

Vibration transducers 1 transform the mechanical oscillations of a controlled object into an electrical signal proportional to the vibration level with a vibration frequency, which from the output of the vibration transducers 1 through amplifiers 2 enters the switch 3, which alternately connects the measuring channels directly to the measuring unit. The switch is controlled by generator 4.

From measurement unit 5 information is fed to the input of unit 6 elements I.

Depending on the value of the signal from measurement block 5, the corresponding elements are triggered. And in block 6, the signal from the output of which, carrying the vibration parameter information, is recorded in register 7 and remains in its memory until the value of the vibration parameter is changed. Informative signal from the output of the register 7 passes to the recorder 8.

F o rm oud inventions

A device for measuring vibration parameters, containing a switch, n amplifiers, n vibration transducers connected through the respective amplifiers to the switch, a generator connected to one of the switch inputs, the recorder and the measuring unit, the first input from the switch , characterized in that, with the aim

To increase the accuracy and expansion of the measurement range, it is equipped with series-connected AND elements and a register connected between the measurement unit and the recorder, and the second generator output is connected to the second input of the measurement unit, the second output of which is connected to the second inputs of the I.

Compiled by V. Lopukhin Editor N. Kishtulinets Tekhred I. Popov1ГЧ Proofreader G. Reschetnik

Order 1940/38 Circulation 507Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Design, 4.

Claims (1)

Claim A device for measuring vibration parameters, comprising a switch, η amplifiers, η vibration transducers connected through appropriate amplifiers to a switch, a generator connected to one of the inputs 20 of the switch, a recorder and a measurement unit, the first input connected to the output of the switch, characterized in that , in order to increase accuracy and expand the range of measurements, it is equipped with series-connected block of elements And and a register connected between the block of measurements and the recorder, and the second output of the generator 30 is connected to the second input of the measurement unit, the second output of which is connected to the second inputs of the block of elements I.