SU81987A2 - Diagram of unbalance relay measuring bridge for pulse devices - Google Patents

Diagram of unbalance relay measuring bridge for pulse devices

Info

Publication number
SU81987A2
SU81987A2 SU381503A SU381503A SU81987A2 SU 81987 A2 SU81987 A2 SU 81987A2 SU 381503 A SU381503 A SU 381503A SU 381503 A SU381503 A SU 381503A SU 81987 A2 SU81987 A2 SU 81987A2
Authority
SU
USSR - Soviet Union
Prior art keywords
diagram
unbalance
measuring bridge
contact
pulse devices
Prior art date
Application number
SU381503A
Other languages
Russian (ru)
Inventor
Л.Г. Рашковский
Original Assignee
Л.Г. Рашковский
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.Г. Рашковский filed Critical Л.Г. Рашковский
Priority to SU381503A priority Critical patent/SU81987A2/en
Application granted granted Critical
Publication of SU81987A2 publication Critical patent/SU81987A2/en

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Landscapes

  • Testing Of Balance (AREA)
  • Measuring Fluid Pressure (AREA)

Description

Предметом изобретени   вл етс  схема реле небаланса нзмернтельного моста, описанного в основном авт. св. Лд 81986.The subject of the invention is a circuit diagram of an imbalance bridge bridge, described mainly by ed. St. Ld 81986.

В измерительной технике и в различных системах сигнализации широко примен ютс  контактные гальванометры. Эти приборы сложны конструктивно и дороги и, кроме того, обладают инерционностью.Contact galvanometers are widely used in measurement technology and in various alarm systems. These devices are structurally complex and expensive and, moreover, have inertia.

В основном авторском свидетельстве дл  тех же целей сигнализации изменени  установившегос  значени  какой-либо величины был предло .жен мост Уитстона с усилением контакта нулевого реле при небалансе. Мост с усилением контакта при небалансе дает сигнал немедленного действи  и конструктивно весьма прост.For the same purpose of signaling the change in the steady-state value of a value, the main author's certificate was proposed to have a Wheatstone bridge with a non-balance relay zero contact gain. A bridge with increased contact in unbalance gives an immediate signal and is structurally very simple.

В цел х увеличени  скорости колебани  рамки прибора в предлагаемой схеме примен етс  пульсирующее реле, периодически подающее в рамку нулевого реле электрические импульсы, обратные току небаланса .In order to increase the speed of oscillation of the frame of the device in the proposed scheme, a pulsating relay is used, periodically feeding electric pulses into the frame of the zero relay, opposite to the unbalance current.

На чертеже изображена схема усилени  контакта моста.The drawing shows a circuit for reinforcing a bridge contact.

В диагональ моста включаетс  нормальный гальванометр ДМ, к которому вместо указательной стрелки пристроен подвижной контакт К.The diagonal of the bridge includes a normal DM galvanometer, to which, instead of the pointing arrow, a mobile contact K is attached.

При небольщом небалансе (пор дка 1%) подвил ной контакт аппарата касаетс  неподвижного контакта, но его нажим настолько слаб, что нормальное электромагнитное реле не может сработать; однако Б первый момент соприкосновени  подвижного и неподвижного контактов сопротивление плеча И несколько уменьшаетс , вследствие этого ток небаланса усиливаетс  на некоторую величину; это обсто тельство в свою очередь вызывает усиление давлени  между контактами.With a slight imbalance (on the order of 1%), the substation contact of the apparatus touches the fixed contact, but its pressure is so weak that a normal electromagnetic relay cannot operate; However, B is the first moment of contact between the moving and fixed contacts of the resistance of the arm And slightly decreases, as a result, the unbalance current is amplified by a certain amount; This circumstance in turn causes increased pressure between the contacts.

Процесс взаимодействи  между давлением контактов и увеличением небаланса продолжаетс  до тех пор, пока катущка реле небаланса моста ДМ1 окажетс  настолько закороченной и обесточенной, что его  корек отнадет и положение контактов (на чертеже не указаны) изменитс .The process of interaction between contact pressure and an increase in unbalance continues until the unbalance coil of the bridge DM1 is so short-circuited and de-energized that its crust is lost and the position of the contacts (not shown) changes.

Явл  сь элементом пульсирующей схемы, контакт I П, действу  на реле П, заставл ет последнее переключать свои контакты Пь П2 с частотой примерно два импульса в секунду. При включении П1 и Па прибор небаланса включен на рабочее положение, т. е. при небалансе определенного направлени , контакт К замкнетс  и катущка ДМ1 обесточитс .Being an element of a pulsating circuit, contact I P, acting on relay P, forces the latter to switch its contacts P n P2 at a frequency of about two pulses per second. When P1 and Pa are turned on, the unbalance device is turned on to the working position, i.e., if a certain direction is unbalanced, contact K closes and the DM1 coil is de-energized.

SU381503A 1948-07-08 1948-07-08 Diagram of unbalance relay measuring bridge for pulse devices SU81987A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU381503A SU81987A2 (en) 1948-07-08 1948-07-08 Diagram of unbalance relay measuring bridge for pulse devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU381503A SU81987A2 (en) 1948-07-08 1948-07-08 Diagram of unbalance relay measuring bridge for pulse devices

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU81986 Addition

Publications (1)

Publication Number Publication Date
SU81987A2 true SU81987A2 (en) 1949-11-30

Family

ID=48261743

Family Applications (1)

Application Number Title Priority Date Filing Date
SU381503A SU81987A2 (en) 1948-07-08 1948-07-08 Diagram of unbalance relay measuring bridge for pulse devices

Country Status (1)

Country Link
SU (1) SU81987A2 (en)

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