SU463931A1 - Resistive sensor resistance meter - Google Patents
Resistive sensor resistance meterInfo
- 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
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
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.
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)
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 |
-
1973
- 1973-01-12 SU SU1870979A patent/SU463931A1/en active
Cited By (1)
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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