SU143570A1 - Method for linear conversion of active resistance value to frequency and device for implementing this method - Google Patents
Method for linear conversion of active resistance value to frequency and device for implementing this methodInfo
- Publication number
- SU143570A1 SU143570A1 SU687565A SU687565A SU143570A1 SU 143570 A1 SU143570 A1 SU 143570A1 SU 687565 A SU687565 A SU 687565A SU 687565 A SU687565 A SU 687565A SU 143570 A1 SU143570 A1 SU 143570A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- frequency
- resistance value
- implementing
- linear conversion
- active resistance
- Prior art date
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
Известны способы преобразовани величины сопротивлени в частоту и устройства дл их осуществлени .Methods are known for converting resistance values to frequency and devices for their implementation.
Недостаток известных способов состоит в том, что- прн преобразовании величнны сопротивлени в частоту с помощью / С-генератора зависимость между величинами нелинейна.A disadvantage of the known methods is that the conversion of resistance values to frequency using the / C-generator is the relationship between the values is non-linear.
Предлагаемый способ и устройство дл его осуществлени позвол ют получить линейную зависимость величин сопротивлений п генерируемой частоты путем воздействи отрицательной обратной св зи самобалансирующегос моста Уинстона на сопротивлени , включенные в соседние плечи моста Внна.The proposed method and device for its implementation allow to obtain a linear dependence of the values of resistance n of the generated frequency by the effect of negative feedback of the self-balancing bridge of Winston on the resistance included in the adjacent shoulders of the Vnna bridge.
В устройстве дл осуществлени предлагаемого способа подогреватели всех трех подогревных сопротивлений соединены последовательно и питаютс током отрицательной обратной св зи, балансирующей мост Уинстона.In the device for carrying out the proposed method, the heaters of all three heating resistances are connected in series and fed by a negative feedback current balancing the Winston bridge.
На чертеже приведена принципиальна схема устройства дл осуществлени описываемого способа.The drawing is a schematic diagram of an apparatus for carrying out the described method.
Измер емое сопротивление / включено в одно из плеч моста Уинстона- В противоположное плечо моста включено сопротивление 2 с косвенпым подогревом. Генератор частоты, в которую преобразуетс величина измер емого сопротивлени /, выполнен на мосте Вина, в два соседние плеча которого включены подогревные сопротивлени 3 VL 4. Нагреватели 5 подогревных сопротивлений включены последовательно и питаютс от фазочувствительного детектора 6, входы которого подключены к зажимам 7 источника переменного тока и к выходу усилител 8. Усилитель включен в одну диагональ моста Уинстона, в другую диагональ которого с зажимов 7 подают питание от нсточника переменlioro тока. Поэтому цепь подогрева выключаетс при опрокидывании фазы в измерительной диагонали .моста Упнстона при резком 11змененин (величины сопротивлени /. Таким образом, при изменении величиныMeasured resistance / included in one of the shoulders of the Winston bridge; Resistance 2 with indirect heating is included in the opposite shoulder of the bridge. The frequency generator, in which the measured resistance value / is converted, is made on the Wien bridge, in two adjacent arms of which heating resistances 3 VL 4 are connected. Heaters 5 of heating resistances are connected in series and powered by a phase-sensitive detector 6, the inputs of which are connected to terminals 7 current and to the output of the amplifier 8. The amplifier is connected to one diagonal of the Winston bridge, the other diagonal of which from the terminals 7 is supplied with power from the current source voltage. Therefore, the preheating circuit is switched off when the phase reverses in the measuring diagonal of the Upnston bridge with a sharp change (resistance value /. Thus, when the value of
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU687565A SU143570A1 (en) | 1960-12-01 | 1960-12-01 | Method for linear conversion of active resistance value to frequency and device for implementing this method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU687565A SU143570A1 (en) | 1960-12-01 | 1960-12-01 | Method for linear conversion of active resistance value to frequency and device for implementing this method |
Publications (1)
Publication Number | Publication Date |
---|---|
SU143570A1 true SU143570A1 (en) | 1961-11-30 |
Family
ID=48299324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU687565A SU143570A1 (en) | 1960-12-01 | 1960-12-01 | Method for linear conversion of active resistance value to frequency and device for implementing this method |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU143570A1 (en) |
-
1960
- 1960-12-01 SU SU687565A patent/SU143570A1/en active
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