SU122206A1 - Method for measuring electrical power - Google Patents
Method for measuring electrical powerInfo
- Publication number
- SU122206A1 SU122206A1 SU567846A SU567846A SU122206A1 SU 122206 A1 SU122206 A1 SU 122206A1 SU 567846 A SU567846 A SU 567846A SU 567846 A SU567846 A SU 567846A SU 122206 A1 SU122206 A1 SU 122206A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electrical power
- measuring electrical
- voltage
- measured
- heaters
- Prior art date
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
Насто щее изобретение относитс к способам измерени электрической мощности при помощи фазового дискриминатора с подогревными сопротивлени ми, снабженными мета длическими нагревател ми и включенными в плечи электрического моста.The present invention relates to methods for measuring electrical power using a phase discriminator with heating resistances, equipped with long-term heaters and included in the shoulders of an electric bridge.
Отличие предлагаемого способа от известных состоит в том, что дл измерени используют линейный участок рабочей характеристики нагревателей и мо.ст питают измер емым напр жением.The difference between the proposed method and the known one is that the linear portion of the operating characteristic of the heaters is used for the measurement and the power is supplied with the measured voltage.
Это позвол ет уменьщить нижний предел измерени мощности в результате повышени чувствительности подогревных сопротивлений изза увеличени температуры их нагрева.This allows the lower limit of the power measurement to be reduced as a result of an increase in the sensitivity of the heating resistors due to an increase in their heating temperature.
На чертеже изображена электрическа схема устройства дл измерени температуры по предлагаемому способу.The drawing shows the electrical circuit of the device for measuring the temperature of the proposed method.
Устройство выполнено в виде фазового дискриминатора ,0 подогревными сопротивлени ми /, включенными в цепь электрического моста, который питаетс напр жением, пропорциональным измер емому напр жению . Подогревные сопротивлени 1 снабжены металлическими нагревател ми 2, выполненными из платиновой проволоки и включенными в контур, образованный двум трансформаторами 5 и 4, на один из которых подаетс напр жение Ни, пропорциональное измер емому напр жению , а на другой - напр жение Ui, пропорциональное измер емому току.The device is made in the form of a phase discriminator, with heating resistances (i) included in an electric bridge circuit, which is supplied with a voltage proportional to the voltage being measured. The heating resistances 1 are provided with metal heaters 2 made of platinum wire and included in a circuit formed by two transformers 5 and 4, one of which is supplied with voltage Ne proportional to the measured voltage, and to the other voltage Ui proportional to the measured emc current.
При этих у|слови х напр жение в выходной диагонали моста измер етс электроизмерительным прибором 5. Нагреватели 2 работают на линейном участке рабочей характеристики. В результате этого напр жение на выходе схемы моста измер етс пропорционально произведению напр жений Lu и Ui, умноженному на косинус угла сдвига фаз между ними , 1. е. пропорционально измер емой мощности.With these values, the voltage in the output diagonal of the bridge is measured by an electrical measuring device 5. Heaters 2 operate on the linear portion of the operating characteristic. As a result, the voltage at the output of the bridge circuit is measured in proportion to the product of the voltages Lu and Ui multiplied by the cosine of the phase angle between them, 1. e. Is proportional to the measured power.
Предмет изобретени Subject invention
Способ измерени электрической мощно1оти при помощи фазового дискриминатора с подогревными сопротивлени ми, снабженными металлическими нагревател ми и включенными в плечи электрического моста, отличающийс тем, что дл измерени используют линейный участок рабочей характеристики нагревателей и мост питают измер емым напр жением.A method of measuring electrical power using a phase discriminator with heating resistances, equipped with metal heaters and included in the shoulders of an electric bridge, characterized in that the linear portion of the operating characteristic of the heaters is used for the measurement and the bridge is supplied with a measured voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU567846A SU122206A1 (en) | 1957-02-28 | 1957-02-28 | Method for measuring electrical power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU567846A SU122206A1 (en) | 1957-02-28 | 1957-02-28 | Method for measuring electrical power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU122206A1 true SU122206A1 (en) | 1958-11-30 |
Family
ID=48393921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU567846A SU122206A1 (en) | 1957-02-28 | 1957-02-28 | Method for measuring electrical power |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU122206A1 (en) |
-
1957
- 1957-02-28 SU SU567846A patent/SU122206A1/en active
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