SU543094A1 - Device for measuring static load moment of an electric motor - Google Patents

Device for measuring static load moment of an electric motor

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Publication number
SU543094A1
SU543094A1 SU2139379A SU2139379A SU543094A1 SU 543094 A1 SU543094 A1 SU 543094A1 SU 2139379 A SU2139379 A SU 2139379A SU 2139379 A SU2139379 A SU 2139379A SU 543094 A1 SU543094 A1 SU 543094A1
Authority
SU
USSR - Soviet Union
Prior art keywords
electric motor
static load
load moment
measuring
measuring static
Prior art date
Application number
SU2139379A
Other languages
Russian (ru)
Inventor
Олег Павлович Ильин
Юрий Николаевич Петренко
Валерий Павлович Беляев
Петр Павлович Примшиц
Original Assignee
Белорусский Политехнический Институт
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 Белорусский Политехнический Институт filed Critical Белорусский Политехнический Институт
Priority to SU2139379A priority Critical patent/SU543094A1/en
Application granted granted Critical
Publication of SU543094A1 publication Critical patent/SU543094A1/en

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Description

1one

Изобретение относитс  к электрическим машинам , а именно к устройствам дл  измерени  статического момента нагрузки электродвигател , и может быть использовано, например , в автоматизированно1 1 регулируемом электроприводе.The invention relates to electric machines, namely, devices for measuring the static torque of an electric motor, and can be used, for example, in an automated adjustable electric drive.

Известны устройства дл  измерени  статического момента нагрузки электродвигател , выполненные в виде тензодатчиков, размещенных на валу, и измерительного прибора 1. Однако в динамических режимах такие устройства недостаточно точны.Devices for measuring the static load moment of an electric motor, made in the form of strain gauges placed on the shaft and measuring device 1 are known. However, in dynamic modes such devices are not sufficiently accurate.

Известны также устройства дл  измерени  статического момента нагрузки электродвигател , сопр женного при помощи вала с рабочим механизмом, содержащие последовательно соединенные датчик электромагнитного момента и усилитель, подключенный к инверсному входу сумматора 2. Измерение статического момента нагрузки производитс  путем вычитани  из электромагнитного момента двигател  динамического, который получают как произведение момента инерции привода на угловое ускорение. Дл  получени  величины углового ускорени  используетс  дифференцирующее устройство, производ щее дифференцирование напр жени  тахогенератора , который  вл етс  датчиком угловой скорости электродвигател . Недостатком этихAlso known are devices for measuring the static load moment of an electric motor coupled by means of a shaft with an operating mechanism, containing an electromagnetic moment sensor connected in series and an amplifier connected to the inverse of the adder 2. Measurement of the static load moment is performed by subtracting the dynamic electromagnetic motor that as the product of the moment of inertia of the drive by the angular acceleration. To obtain the magnitude of the angular acceleration, a differentiating device is used, which differentiates the voltage of the tachogenerator, which is the sensor of the angular velocity of the electric motor. Disadvantage of these

устройств  вл етс  больша  погрещность измерени  статического момента в динамических режимах из-за погрещностей при дифференци ровании напр жени  тахогенератора.The device is a large error in measuring the static moment in dynamic modes due to faults in differentiating the voltage of the tachogenerator.

Дл  повышени  точности измерени  в динамических режимах предлагаемое устройство сиабл ено датчиком, измер ющим момент на валу, и вторым усилителем, которые соединены последовательно и подключены к пр мому входу сумматора, причем коэффициенты усилени  первого и второго усилителей выбраны равнымиTo improve the measurement accuracy in dynamic modes, the proposed device is coupled to a sensor measuring the torque on the shaft and a second amplifier, which are connected in series and connected to the forward input of the adder, with the gains of the first and second amplifiers being equal to

/С, К, 1+К„/ C, K, 1 + K „

где /1 и /2 - моменты инерции вращающихс  частей электродвигател  и рабочего механизма , соответственно.where / 1 and / 2 are the moments of inertia of the rotating parts of the electric motor and the working mechanism, respectively.

На чертеже дана блок-схема описываемого устройства.The drawing is a block diagram of the described device.

Электродвигатель 1 сопр лсен при помощи вала 2 с рабочим механизмом 3. Датчик 4 электромагнитного момента соединен последовательно с усилителем 5, выход которого подключен к инверсно.му входу сумматора 6. Датчик 7, измер ющий момент на валу, соединен последовательно с усилителем 8, выход которого св зан с пр мым входом сумматора 6.The motor 1 is matched by a shaft 2 with a working mechanism 3. The electromagnetic torque sensor 4 is connected in series with an amplifier 5, the output of which is connected to the inverter input of the adder 6. A sensor 7 measuring the torque on the shaft is connected in series with the amplifier 8, the output which is connected to the direct input of the adder 6.

SU2139379A 1975-05-29 1975-05-29 Device for measuring static load moment of an electric motor SU543094A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2139379A SU543094A1 (en) 1975-05-29 1975-05-29 Device for measuring static load moment of an electric motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2139379A SU543094A1 (en) 1975-05-29 1975-05-29 Device for measuring static load moment of an electric motor

Publications (1)

Publication Number Publication Date
SU543094A1 true SU543094A1 (en) 1977-01-15

Family

ID=20621074

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2139379A SU543094A1 (en) 1975-05-29 1975-05-29 Device for measuring static load moment of an electric motor

Country Status (1)

Country Link
SU (1) SU543094A1 (en)

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