SU614339A2 - Temperature differential measuring device - Google Patents

Temperature differential measuring device

Info

Publication number
SU614339A2
SU614339A2 SU772446355A SU2446355A SU614339A2 SU 614339 A2 SU614339 A2 SU 614339A2 SU 772446355 A SU772446355 A SU 772446355A SU 2446355 A SU2446355 A SU 2446355A SU 614339 A2 SU614339 A2 SU 614339A2
Authority
SU
USSR - Soviet Union
Prior art keywords
temperature
measuring device
temperature differential
differential measuring
switch
Prior art date
Application number
SU772446355A
Other languages
Russian (ru)
Inventor
Владимир Васильевич Ризнык
Мирослав Васильевич Рак
Original Assignee
Львовское Специализированное Предприятие "Спецэнергоавтоматика"
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 Львовское Специализированное Предприятие "Спецэнергоавтоматика" filed Critical Львовское Специализированное Предприятие "Спецэнергоавтоматика"
Priority to SU772446355A priority Critical patent/SU614339A2/en
Application granted granted Critical
Publication of SU614339A2 publication Critical patent/SU614339A2/en

Links

Description

ТЭДС от температуры. Поэтому в каждый момеда дардамени на выходе демодул тора Ь паЙб  етсч напр жение, .пропорцио ,,-тёмпературе, измер емой терMotiaport . 1; или 2, в зависимостк от по .)gHflt.коммутатора 3. В зависимости -Ьт по бжейи  модул тора 3 и коммутатора Ь, работающих синхронно, на одной из выходов коммутатора 8 по витс  импульсное напр жение (с чacтoтoй работы коммутатора 8). величина которого пропорциональна, абсолютному значению температуры, измер емой термопарой iJ.TEDS on temperature. Therefore, in each moment of dardameni, at the output of the demodulator L of the PCE, the voltage, Proportion, is the temperature measured by the term Motiaport. one; or 2, depending on the.) switchboard 3. switchboard 3. Depending on the modulator 3 and switch b, working synchronously, one of the outputs of switch 8 gives the pulse voltage (from the switch 8 operation frequency). the value of which is proportional to the absolute value of the temperature measured by the thermocouple iJ.

С помощью разделительных конденсаторов У и 10 выдел етс  переменна  составл юща  каждого из этих напр жений , которые демодулируютс  демодул торами 12 и 13 и измер ютс  двум  приборами 15 и 16.Using coupling capacitors Y and 10, the variable component of each of these voltages is extracted, which are demodulated by demodulators 12 and 13 and measured by two instruments 15 and 16.

Если напр жени  на термопарах 1 и 2 отличаютс , то на выходе демодул тора 6 по витс  переменна  составл юща  напр жени , величина которой пропорциональна разности измер емых температур , а фаза зависит от знака этой разности. Эта переменна  составл юща  выдел етс  с помощью соответствующего конденсатора 11, демодулируе/с  и измер етс  третьим прибором 17, предназначенным дл  измерени  разности температур Ai а tj -t If the voltages on thermocouples 1 and 2 are different, then at the output of demodulator 6, the voltage component is variable, the value of which is proportional to the difference in measured temperatures, and the phase depends on the sign of this difference. This variable component is extracted using an appropriate capacitor 11, demodulating / s, and is measured by a third device 17, designed to measure the temperature difference Ai and tj -t

Таким образом, предложенное устройство позвол ет одновременно измер ть разность температур; «tj-t и абсолютные значени  обоих темперас Typ(t J М tj,) при наличии линейной зависимости ТЭДС от температуры.Thus, the proposed device allows simultaneous measurement of the temperature difference; "Tj-t and the absolute values of both temperature types Typ (t J M tj,) in the presence of a linear temperature dependence of the TEC.

Предлагаемое устройство обеспечивает измерение абсолютных значений )0 температуры одновременно с измерением разности температур, отпадает необходимость в использовании дополнительных устройств.дл  измерени  абсолютны значений температур.The proposed device provides a measurement of the absolute values of the temperature simultaneously with the measurement of the temperature difference, eliminating the need for the use of additional devices for measuring the absolute values of the temperatures.

1515

Claims (1)

Формула изобретени Invention Formula Устройство дл  измерени  разности температур : по авт.св. № 530198,отличающеес   тем, что, с целью одновременного измерени  абсолюных значений температуры, в него введены коммутатор и два дополнительных демодул тора низкой частоты с измерительными приборами, причем вход коладутатора соединен с выходом демодул тора повышенной частоты, а входы дополнительнь(х демодул торов низкой частоты соединены с выходами коммутатора .Device for measuring the temperature difference: by author No. 530198, characterized in that, in order to simultaneously measure absolute values of temperature, a switch and two additional low-frequency demodulators with measuring instruments are introduced into it, with the input of the colodator connected to the output of the increased-frequency demodulator and additional inputs (x frequencies are connected to the switch outputs. ЯI fSfS
SU772446355A 1977-01-25 1977-01-25 Temperature differential measuring device SU614339A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772446355A SU614339A2 (en) 1977-01-25 1977-01-25 Temperature differential measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772446355A SU614339A2 (en) 1977-01-25 1977-01-25 Temperature differential measuring device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU530198 Addition

Publications (1)

Publication Number Publication Date
SU614339A2 true SU614339A2 (en) 1978-07-05

Family

ID=20693149

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772446355A SU614339A2 (en) 1977-01-25 1977-01-25 Temperature differential measuring device

Country Status (1)

Country Link
SU (1) SU614339A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097385A1 (en) * 2001-05-30 2002-12-05 Thermometric Ab Absolute temperature measuring apparatus and method
CN107246922A (en) * 2017-04-20 2017-10-13 安徽春辉仪表线缆集团有限公司 A kind of changeable thermocouple structure of measurement pattern

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002097385A1 (en) * 2001-05-30 2002-12-05 Thermometric Ab Absolute temperature measuring apparatus and method
US6994467B2 (en) 2001-05-30 2006-02-07 Thermometric Ab Absolute temperature measuring apparatus and method
CN107246922A (en) * 2017-04-20 2017-10-13 安徽春辉仪表线缆集团有限公司 A kind of changeable thermocouple structure of measurement pattern

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