SU667895A1 - Method of measuring shaft rotational speed - Google Patents

Method of measuring shaft rotational speed

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Publication number
SU667895A1
SU667895A1 SU762338070A SU2338070A SU667895A1 SU 667895 A1 SU667895 A1 SU 667895A1 SU 762338070 A SU762338070 A SU 762338070A SU 2338070 A SU2338070 A SU 2338070A SU 667895 A1 SU667895 A1 SU 667895A1
Authority
SU
USSR - Soviet Union
Prior art keywords
rotational speed
shaft rotational
measuring shaft
shaft
rotation
Prior art date
Application number
SU762338070A
Other languages
Russian (ru)
Inventor
Юрий Михайлович Романенко
Original Assignee
Romanenko Yurij M
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 Romanenko Yurij M filed Critical Romanenko Yurij M
Priority to SU762338070A priority Critical patent/SU667895A1/en
Application granted granted Critical
Publication of SU667895A1 publication Critical patent/SU667895A1/en

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Description

- - - f Известен емкостнь Й датчик дл  измерени  f- - - f Capacitive sensor for measuring f

параметров вращени  вала, содержаишй две обкладки , которые сопр жень с вращаюшимс  объектом, причем одна из обкладок заземлена 1. Однако точность измерени  в услови х осевщ и радиальных биений вала недостаточна,shaft rotation parameters, containing two plates, which are conjugated with a rotating object, one of the plates being grounded 1. However, the measurement accuracy in terms of axial and radial shaft beating is insufficient,

Известен также споюб измерени  скорости вращени  вала путем измерени  временных промежутков между сигналами на выходе автогенераторного тфеобразоват ел  скорости враще} и  вала, частотнзао модул цию которых осуществл ют при помощи скрепленной с валом системы модулирующих электродов, н преобразовани  их в последовательность импульсов 2.Also known is the measurement of the speed of rotation of the shaft by measuring the time intervals between the output signals of the autogenerator and the speed of rotation and of the shaft, the frequency modulation of which is carried out using a system of modulating electrodes attached to the shaft and transforming them into a sequence of pulses 2.

Цель изобретени  - повышение точности измерени ,,The purpose of the invention is to improve the measurement accuracy,

Это достигаетс  тем, что по предлагаемому способу из каждого периода сигнала формируют два пр моугольньвс импульса, временное положение переднего и задаего фронтов которых onредел етс  крутизной восход щей и нисход щей :Ьетвей пилообразных сигналов с преобразовате1л , при этом длительность каждого из импульсовThis is achieved by the fact that according to the proposed method, from each period of the signal, two squares of the pulse are formed, the temporary position of the front and rear edges of which is determined by the steepness of the ascending and descending: Chain of sawtooth signals with transducers, and the duration of each of the pulses

: .. : . . -:. 2 ;Мекьше временного пройе сутка, соотйеТствующего восход икй и 1шсход щей ветв м.: ..:. . - :. 2; Mekše time propea day, corresponding to the rising sun and 1 descending branch of m.

На фиг. изображена блок-схема устройства дл  осуществлени  предлагаемого способа; на фиг. 2 - диаграмма, по сн юща  его работу.FIG. shows a block diagram of an apparatus for implementing the inventive method; in fig. 2 is a diagram explaining his work.

. Снсте га модулирующих электродов 1 закреплена на валу. 2 к сопр жена с рабочими обкладкамй 3, включенными в резонансный контур автогенерзторного преобразовател  4, подключенного через последовательно соединенные частотный детектор 5 и буферный усилитель 6 к входам потендна ьных триггеров 7 и 8, например триггеров Шмитта с различными порогами срабатывани . Выходы триггеров через последовательно соединенные повторитель 9 и инвертор 10 подключены к входу оператора ИЛИ 11, при этом потенциал срабатывани  триггера 7 выше, чем триггера 8. Вы;ход оператора ИЛИ 11 .подключен к входу ключа 12, шунтирующего выход эталонного генератора 13, управл ющего работой счеиика 14 импульсов. Устройство работает .следующим образом, В процессе вращени  вала 2 происходит изменение частоты, генерируемой автогенераторным преобразователем 4, в результате чего на выходе. The modulating electrode 1 is mounted on the shaft. 2 is connected to the working plates 3 connected to the resonator circuit of an auto-oscillator transducer 4 connected through series-connected frequency detector 5 and buffer amplifier 6 to the inputs of potential triggers 7 and 8, for example, Schmitt triggers with different thresholds. The trigger outputs are connected via a series of repeater 9 and inverter 10 to the input of the operator OR 11, while the triggering potential of the trigger 7 is higher than the trigger 8. You; the operator's stroke OR 11 is connected to the input of the key 12, which shunts the output of the reference generator 13, controls work circuit 14 pulses. The device operates as follows. During the rotation of shaft 2, the frequency generated by the self-oscillating transducer 4 changes, resulting in

SU762338070A 1976-01-16 1976-01-16 Method of measuring shaft rotational speed SU667895A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762338070A SU667895A1 (en) 1976-01-16 1976-01-16 Method of measuring shaft rotational speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762338070A SU667895A1 (en) 1976-01-16 1976-01-16 Method of measuring shaft rotational speed

Publications (1)

Publication Number Publication Date
SU667895A1 true SU667895A1 (en) 1979-06-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU762338070A SU667895A1 (en) 1976-01-16 1976-01-16 Method of measuring shaft rotational speed

Country Status (1)

Country Link
SU (1) SU667895A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482859A (en) * 1981-05-15 1984-11-13 S.N.E.C.M.A. Object displacement sensor and device for measuring the rotation speed and vibration frequency of a rotor
RU2757069C1 (en) * 2020-08-07 2021-10-11 Акционерное общество "Центр судоремонта "Звездочка" (АО "ЦС "Звездочка") Method for determining the rotation speed of a shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4482859A (en) * 1981-05-15 1984-11-13 S.N.E.C.M.A. Object displacement sensor and device for measuring the rotation speed and vibration frequency of a rotor
RU2757069C1 (en) * 2020-08-07 2021-10-11 Акционерное общество "Центр судоремонта "Звездочка" (АО "ЦС "Звездочка") Method for determining the rotation speed of a shaft

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