SU121972A1 - Device for remotely measuring the difference in the speeds of rotation of two shafts - Google Patents

Device for remotely measuring the difference in the speeds of rotation of two shafts

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Publication number
SU121972A1
SU121972A1 SU598608A SU598608A SU121972A1 SU 121972 A1 SU121972 A1 SU 121972A1 SU 598608 A SU598608 A SU 598608A SU 598608 A SU598608 A SU 598608A SU 121972 A1 SU121972 A1 SU 121972A1
Authority
SU
USSR - Soviet Union
Prior art keywords
difference
shafts
speeds
rotation
capacitors
Prior art date
Application number
SU598608A
Other languages
Russian (ru)
Inventor
А.И. Митников
Original Assignee
А.И. Митников
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 А.И. Митников filed Critical А.И. Митников
Priority to SU598608A priority Critical patent/SU121972A1/en
Application granted granted Critical
Publication of SU121972A1 publication Critical patent/SU121972A1/en

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Description

Дл  дистанционного измерени  разности скоростей вращени  двух валов примен ют устройства, содержащие два синхронных генератора переменного тока, механически св занных соответственно с контролируемыми |валами, и дифференциальный гальванометр, реагирующий на разность частот этих генераторов.To remotely measure the difference in the speeds of rotation of two shafts, devices are used that contain two synchronous alternators, mechanically connected to controlled shaft, respectively, and a differential galvanometer, which reacts to the difference in frequencies of these generators.

Недостаток известных устройств подобного рода состоит в том, что они не дают возможности уменьшить нижний предел измер емой разностной частоты.A disadvantage of the known devices of this kind is that they do not make it possible to reduce the lower limit of the measured difference frequency.

В предлагаемом устройстве указанный недостаток устранен в результате того, что в плечо каждой рамки гальванометра включено по два конденсатора, зар жаемых через рамки от источника посто нного тока и поочередно разр жаемых через сопротивлени .In the proposed device, this disadvantage is eliminated due to the fact that two capacitors are included in the shoulder of each frame of the galvanometer, charged through the frames from the DC source and alternately discharged through the resistance.

Эти сопротивлени  включены в плечо каждой рамки и подключаютс  к конденсаторам с помощью пол ризованных реле, управл емых импульсами от указанных генераторов неременного тока.These resistances are included in the shoulder of each frame and are connected to capacitors by means of polarized relays controlled by pulses from the indicated non-alternating current generators.

На чертеже изображена электрическа  схема предлагаемого устройства .The drawing shows the electrical circuit of the proposed device.

Устройство работает по методу сравнени  частот электрических напр жений , вырабатываемых двум  синхронными генераторами / и 2 переменного тока, механически св занными с контролируемыми валами 5 и 4 соответственно. Сравнение частот осуществл етс  посредством дифференциального гальванометра с двум  рамками 5 н 6. Через каждую из рамок протекает ток, идущий на зар дку конденсаторов 7. Конденсаторы поочередно зар жаютс  от источника посто нного напр жени  и затем разр жаютс  через сопротивлени  S. Управление зар дом и разр дом конденсаторов осуществл етс  посредством двух пол ризованных реле 9 и 10, обмотки которых питаютс  токами, генерируемыми синхронными генераторами 1 к 2.The device operates according to the method of comparing the frequencies of electrical voltages produced by two synchronous generators / and 2 alternating currents, mechanically connected with controlled shafts 5 and 4, respectively. Frequency comparisons are made using a differential galvanometer with two 5n6 frames. A current flows through each of the frames to charge the capacitors 7. The capacitors are alternately charged from a constant voltage source and then discharged through the resistance S. the capacitors are discharged by means of two polarized relays 9 and 10, the windings of which are powered by currents generated by synchronous generators 1 to 2.

При равенстве емкостей конденсаторов среднее значение тока, протекающего через рамку, будет пропорционально частоте соответствующего генератора. Поэтому если частота одного генератора будет больше частоты другого, то на подвижную систему гальванометра будет действовать момент, равный разности этих частот.If the capacitors of the capacitors are equal, the average value of the current flowing through the frame will be proportional to the frequency of the corresponding generator. Therefore, if the frequency of one generator is greater than the frequency of the other, then a moment equal to the difference of these frequencies will act on the moving system of the galvanometer.

Дл  сглаживани  пульсаций подвижной части измерител  при малых частотах обе рамки последнего шунтируютс  конденсатором 11.In order to smooth out the pulsations of the movable part of the meter at low frequencies, both frames of the latter are shunted by a capacitor 11.

Предмет изобретени Subject invention

Устройство дл  дистанционного измерени  разности скоростей вращени  двух валов, содержащее два синхронных генератора переменного тока, механически св занных соответственно с контролируемыми валами , и дифференциальный гальванометр, отличающеес ; тем, что, с целью уменьшени  нижнего предела измер емой разностной частоты, в плечо каждой рамки гальванометра включено по два конденсатора, зар жаемых через рамки от источника посто нного тока и поочередно разр жаемых через сопротивлени , включенные в плечо каждой рамки и подключаемые к конденсаторам с помощью пол ризованных реле, управл емых импульсами от указанных генераторов неременного тока.A device for remotely measuring the difference in the speeds of rotation of two shafts, comprising two synchronous alternators, mechanically connected, respectively, to the monitored shafts, and a differential galvanometer, different; In order to reduce the lower limit of the measured difference frequency, the arm of each frame of the galvanometer includes two capacitors charged through the frames from a DC source and alternately discharged through resistances connected to the arm of each frame and connected to capacitors with using polarized relays controlled by pulses from the indicated non-current generators.

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SU598608A 1958-04-29 1958-04-29 Device for remotely measuring the difference in the speeds of rotation of two shafts SU121972A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU598608A SU121972A1 (en) 1958-04-29 1958-04-29 Device for remotely measuring the difference in the speeds of rotation of two shafts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU598608A SU121972A1 (en) 1958-04-29 1958-04-29 Device for remotely measuring the difference in the speeds of rotation of two shafts

Publications (1)

Publication Number Publication Date
SU121972A1 true SU121972A1 (en) 1958-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU598608A SU121972A1 (en) 1958-04-29 1958-04-29 Device for remotely measuring the difference in the speeds of rotation of two shafts

Country Status (1)

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SU (1) SU121972A1 (en)

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