SU909588A1 - Device for measuring difference of temperatures - Google Patents
Device for measuring difference of temperatures Download PDFInfo
- Publication number
- SU909588A1 SU909588A1 SU802958066A SU2958066A SU909588A1 SU 909588 A1 SU909588 A1 SU 909588A1 SU 802958066 A SU802958066 A SU 802958066A SU 2958066 A SU2958066 A SU 2958066A SU 909588 A1 SU909588 A1 SU 909588A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- temperatures
- measuring
- temperature difference
- measuring difference
- resistance
- Prior art date
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- Arrangements For Transmission Of Measured Signals (AREA)
Description
(54) УСТРОЯСТВО ДЛЯ ИЗМЕРЕНИЯ РАЗНОСТИ (54) DEVICE FOR DIMENSION MEASUREMENT
1one
Изобретение относитс к температурным измерени м и предназначено дл точного измерени разности температур автоматическими регистрирующими приборами в комплексе с нелинейными термометрами сопротивлени .The invention relates to temperature measurements and is intended to accurately measure the temperature difference by automatic recording devices in combination with non-linear resistance thermometers.
Известно устройство дл измерени разности температур, содержащее термометры сопротивлени , включенные в мостовую схему, выходна диагональ которого подключена к усилителю, двигатель , вал которого механически св зан с движком реохорда ИA device for measuring the temperature difference is known, which contains resistance thermometers included in a bridge circuit, the output diagonal of which is connected to an amplifier, and an engine whose shaft is mechanically connected to the RW engine.
Недостатком известного устройства вл етс низка точность из-за вли ни изменени сопротивлени линии св зи и больша дополнительна погрешность измерени разности температур при использовании термометров сопротивлени с нелинейной характеристикой преобразовани .A disadvantage of the known device is the low accuracy due to the effect of a change in the resistance of the communication line and the large additional error in measuring the temperature difference when using resistance thermometers with a non-linear conversion characteristic.
Наиболее близким к предлагаемому по технической сущности и достигаемому результату вл етс устройство дл измерени разности температур, содержащее последовательно соединенные два термометра сопротивлени , потенциальные выводы которых подключены к входам одного из блоков преобразовани , и реохорд, участки межТЕМПЕРАТУРThe closest to the proposed technical essence and the achieved result is a device for measuring the temperature difference, containing two thermometers of resistance connected in series, the potential terminals of which are connected to the inputs of one of the conversion units, and the rheochord, interTEMPERATURE sections
ду одним из выводов реохорд и движком , между движком и вторым выводом реохорда подключена ко входам второго блока преобразовани , включающего в себ управл емые ключи и запоминающий конденсатор, генератор, соединенный со входами управлени ключей блоков преобразовани , выходы которых соединены с земл ной шиной и выходом One of the pins and a slider between the engine and the second lead of the reichord is connected to the inputs of the second conversion unit, which includes controllable keys and a storage capacitor, a generator connected to the control inputs of the keys of the conversion units whose outputs are connected to the ground bus and output
10 усилител , выход которого через фазочувствительный усилитель подключен к двигателю, вал которого механически св зан с реохордом, источник напр жени , . соединенный с земл ной ши15 ной и токовым выводом первого термометра t2 .10 an amplifier, the output of which through a phase-sensitive amplifier is connected to an engine whose shaft is mechanically connected to the resistance, voltage source,. connected to the earth line and current output of the first thermometer t2.
Недостатком известного устройства вл етс наличие значительной погрешности измерени разности температур A disadvantage of the known device is the presence of a significant measurement error of the temperature difference.
20 за счет изменени их абсолютных значений при использовании в качестве датчиков нелинейных термометров со-. противлени .20 by changing their absolute values when using non-linear thermometers co. As sensors. resisting
Цель изобретени - повышение точ25 ности измерени разности температур в широком диапазоне изменени их абсолютных значений при использовании нелинейных термометров сопротивлени ,The purpose of the invention is to improve the accuracy of measuring the temperature difference in a wide range of changes in their absolute values using nonlinear resistance thermometers,
Поставленна цель достигаетс The goal is achieved
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802958066A SU909588A1 (en) | 1980-07-11 | 1980-07-11 | Device for measuring difference of temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802958066A SU909588A1 (en) | 1980-07-11 | 1980-07-11 | Device for measuring difference of temperatures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU909588A1 true SU909588A1 (en) | 1982-02-28 |
Family
ID=20908874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802958066A SU909588A1 (en) | 1980-07-11 | 1980-07-11 | Device for measuring difference of temperatures |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU909588A1 (en) |
-
1980
- 1980-07-11 SU SU802958066A patent/SU909588A1/en active
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