SU176082A1 - capacitive vibration transducer - Google Patents

capacitive vibration transducer

Info

Publication number
SU176082A1
SU176082A1 SU848320A SU848320A SU176082A1 SU 176082 A1 SU176082 A1 SU 176082A1 SU 848320 A SU848320 A SU 848320A SU 848320 A SU848320 A SU 848320A SU 176082 A1 SU176082 A1 SU 176082A1
Authority
SU
USSR - Soviet Union
Prior art keywords
vibration transducer
transistor
capacitive vibration
vibration
capacitive
Prior art date
Application number
SU848320A
Other languages
Russian (ru)
Original Assignee
Л. М. дькин , В. В. Кочетков
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Л. М. дькин , В. В. Кочетков filed Critical Л. М. дькин , В. В. Кочетков
Priority to SU848320A priority Critical patent/SU176082A1/en
Application granted granted Critical
Publication of SU176082A1 publication Critical patent/SU176082A1/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Description

Известны емкостные вибродатчики, преобразующие механические перемещени  в измененпе емкости конденсатора, одна из обкладок которого жестко св зана с инерционным элементом. На результаты измерений, проводимых этими датчиками, оказывает вли ние изменение емкости подвод щих проводов и утечка слабых токов.Capacitive vibration sensors are known that convert mechanical movements in a change in the capacitance of a capacitor, one of the plates of which is rigidly connected with an inertial element. The measurement results of these sensors are affected by a change in the capacitance of the supply wires and the leakage of weak currents.

В описываемом вибродатчике, с целью повыщени  точности и чувствительности, подвижной обкладкой инерционного элемента служит корпус датчика, жестко св заниый с вибрирующей поверхностью, а неподвижной - корпус транзистора, непосредственно соединенный с базой последнего, выполн ющего функции усилител  напр жени .In the described vibration sensor, in order to increase accuracy and sensitivity, the movable lining of the inertia element serves as a sensor body, rigidly connected to the vibrating surface, and a fixed one - the transistor body directly connected to the base of the latter, which functions as a voltage amplifier.

На чертеже приведена схема прибора.The drawing shows a diagram of the device.

Вибродатчик содержит корпус /, который одновременно служит одной из обкладок конденсатора , корпус транзистора 2 (втора  обкладка), па который напрессованно кольцо 3, увеличивающее инерционную массу транзистора , обкладку 4, изолирующую инерционную массу от корпуса и служащую одновременно демпфером колебательной системы датчика.The vibration sensor comprises a housing /, which simultaneously serves as one of the capacitor plates, a transistor 2 housing (second facing), which is pressed into the ring 3, increasing the inertial mass of the transistor, the facing 4, isolating the inertial mass from the housing and simultaneously serving as the damper of the oscillatory system of the sensor.

Транзистор 2 служит первым каскадом усилител .Transistor 2 serves as the first cascade of the amplifier.

При наличии вибрации происходит изменение зазора между корпусом датчика, жестко св занного с вибрирующей поверхностью, и корпусом транзистора, т. е. между обкладками конденсатора, что приводит к измеиеппю его емкости.In the presence of vibration, there is a change in the gap between the sensor body, which is rigidly connected to the vibrating surface, and the transistor case, i.e., between the capacitor plates, which leads to a change in its capacitance.

Возникак щее при вибрации переменное напр жение , усиленное первым каскадом усилител , иодаетс  на последующие каскадЕз и на регистрирующее устройство.An alternating voltage arising from vibration, amplified by the first cascade of the amplifier, is transmitted to the subsequent cascade and to the recording device.

Подобные датчики могут быть пспользованы в качестве контрольных датчиков при калибровке виброизмерительных прпборов других тппов.Such sensors can be used as control sensors when calibrating vibration measuring instruments of other types.

Предмет изобретени Subject invention

Емкостный внбродатчик, одна из обкладок которого жестко св зана с ннерцпоиным элементом , отличающийс  тем, что, с целью повыщени  его чувствительности, в нем обкладкой пнерцпонного элемента служнт корпус транзистора, непосредственно соединенный с базой последнего, выполн ющего функции усилител  напр жени .Capacitive internal transmitter, one of the plates of which is rigidly connected with the power element, characterized in that, in order to increase its sensitivity, the body of the transistor directly connected to the base of the latter, which functions as a voltage amplifier, is covered with the face of the potential element.

SU848320A 1963-07-20 1963-07-20 capacitive vibration transducer SU176082A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU848320A SU176082A1 (en) 1963-07-20 1963-07-20 capacitive vibration transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU848320A SU176082A1 (en) 1963-07-20 1963-07-20 capacitive vibration transducer

Related Child Applications (1)

Application Number Title Priority Date Filing Date
SU884408489A Addition SU1673412A2 (en) 1988-02-10 1988-02-10 Device for superfinishing treatment

Publications (1)

Publication Number Publication Date
SU176082A1 true SU176082A1 (en) 1965-10-26

Family

ID=40937233

Family Applications (1)

Application Number Title Priority Date Filing Date
SU848320A SU176082A1 (en) 1963-07-20 1963-07-20 capacitive vibration transducer

Country Status (1)

Country Link
SU (1) SU176082A1 (en)

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