SU463931A1 - Resistive sensor resistance meter - Google Patents

Resistive sensor resistance meter

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Publication number
SU463931A1
SU463931A1 SU1870979A SU1870979A SU463931A1 SU 463931 A1 SU463931 A1 SU 463931A1 SU 1870979 A SU1870979 A SU 1870979A SU 1870979 A SU1870979 A SU 1870979A SU 463931 A1 SU463931 A1 SU 463931A1
Authority
SU
USSR - Soviet Union
Prior art keywords
resistive sensor
resistance meter
sensor resistance
output
meter
Prior art date
Application number
SU1870979A
Other languages
Russian (ru)
Inventor
Валентин Сергеевич Гутников
Валерий Валентинович Лопатин
Original Assignee
Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина
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 Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина filed Critical Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина
Priority to SU1870979A priority Critical patent/SU463931A1/en
Application granted granted Critical
Publication of SU463931A1 publication Critical patent/SU463931A1/en

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Description

r.-is Л1111П11 7 с резпстивиым датчиком 4. Выходное напр жение усилнтел  3 принимает такое значение, прп котором напр жение на его инвертирующем входе равно нулю, т. е. имеет потенциал обп1,его провода. Поэтому нотенцпал точки А также рапеп 1улю п определ етс  но В1з1раженпюr.-is Л1111П11 7 with a resampled sensor 4. The output voltage of amplifier 3 takes on such a value that the voltage at its inverting input is zero, i.e., it has a potential for its conductors. Therefore, the notation of point A and also of rappe 1uly and n is defined but

,t/ill.,x.yc/irr,,4 п, t / ill., x.yc / irr ,, 4 п

Ь л г.,:.- - B l g.,: .- -

Л/VL / V

где / - выходной ток псточн п а тока;where / is the output current of the current and current;

К - коэффициент усилени  инвертирующего усилител  3.K is the gain of the inverting amplifier 3.

Это выраже1П1е выиолп етс  тем точнее, чем меньше входной ток усилител . В св зи с тем, что источиик тока и измеритель напр жени  имеют общий зажим, питаиие этих узлов ие требует гальванической разв зки иThis expression is more accurate if the input current of the amplifier is lower. Due to the fact that the current source and voltage meter have a common clamp, supplying these nodes does not require galvanic isolation and

может быть осуществлено can be carried out

от одного источпика .from one source.

Предмет изобретени Subject invention

Измеритель сопротивлени  резистивного датчика, содержащий источник тока, измеритель напр жени  и четырехпроводную линию св зи, два провода которой соедин ют первый вывод резистивного датчика с первыми зажимами источника тока и измерител  иапр жепи , отличающийс  тем, что, с целыо повыщепи  точности измерений и упрощени  цепей питани , он содержит инвертирующий усилитель , общий (заземленный) вывод которого соединен со вторыми зажимами источника тока и измерител  напр жени , а вход и выход усилител  двум  другими проводами линии св зи соединены со вторым выводом резистив1ГОГО датчика.A resistive sensor resistance meter containing a current source, a voltage meter and a four-wire communication line, the two wires of which connect the first output of the resistive sensor with the first terminals of the current source and the meter, which is different in that the measurement accuracy and simplification of the circuits power supply, it contains an inverting amplifier, the common (grounded) output of which is connected to the second terminals of the current source and voltage meter, and the input and output of the amplifier by two other wires of the communication line and connected to the second output of the resistive sensor.

SU1870979A 1973-01-12 1973-01-12 Resistive sensor resistance meter SU463931A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1870979A SU463931A1 (en) 1973-01-12 1973-01-12 Resistive sensor resistance meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1870979A SU463931A1 (en) 1973-01-12 1973-01-12 Resistive sensor resistance meter

Publications (1)

Publication Number Publication Date
SU463931A1 true SU463931A1 (en) 1975-03-15

Family

ID=20538963

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1870979A SU463931A1 (en) 1973-01-12 1973-01-12 Resistive sensor resistance meter

Country Status (1)

Country Link
SU (1) SU463931A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2616852C1 (en) * 2015-12-22 2017-04-18 Олег Петрович Ильин Device for remote electrical resistance measuring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2616852C1 (en) * 2015-12-22 2017-04-18 Олег Петрович Ильин Device for remote electrical resistance measuring

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