SU1569591A1 - Device for multi-point measuring of temperature in explosion-dangerous medium - Google Patents

Device for multi-point measuring of temperature in explosion-dangerous medium Download PDF

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Publication number
SU1569591A1
SU1569591A1 SU884473648A SU4473648A SU1569591A1 SU 1569591 A1 SU1569591 A1 SU 1569591A1 SU 884473648 A SU884473648 A SU 884473648A SU 4473648 A SU4473648 A SU 4473648A SU 1569591 A1 SU1569591 A1 SU 1569591A1
Authority
SU
USSR - Soviet Union
Prior art keywords
resistance
measuring
input
output
amplifier
Prior art date
Application number
SU884473648A
Other languages
Russian (ru)
Inventor
Виктор Алексеевич Кузнецов
Original Assignee
Научно-Производственное Объединение "Система"
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Priority to SU884473648A priority Critical patent/SU1569591A1/en
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Publication of SU1569591A1 publication Critical patent/SU1569591A1/en

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Abstract

Изобретение относитс  к области измерени  температур с помощью термопреобразователей сопротивлени  и позвол ет повысить быстродействие при измерени х криогенных температур. По сигналу блока 11 переключени  каналов термопреобразователь 1 сопротивлени  выбранного канала подключаетс  к выходу корректора 15 через эталонное сопротивление 16, ключ 10, сопротивление искрозащиты и провода линии св зи. Одновременно термопреобразователь подключаетс  к входу первого измерительного усилител  12. Напр жение с выходов измерительных усилителей поступает на входы сумматора 13, с выхода которого - на инвертирующий вход сумматора 14. Сигнал с выхода усилител  18 преобразовываетс  аналого-цифровым преобразователем и поступает на вход вычислительного блока 20 с индикатором. В вычислительном блоке по результатам измерени  определ етс  величина сопротивлени  термопреобразовател  1. 2 ил.The invention relates to the field of temperature measurement using resistance thermocouples and allows to increase the response speed when measuring cryogenic temperatures. According to the signal of the channel switching unit 11, the thermal converter 1 of the resistance of the selected channel is connected to the output of the corrector 15 via the reference resistance 16, the key 10, the resistance of the spark protection and the wires of the communication line. At the same time, the thermocouple is connected to the input of the first measuring amplifier 12. The voltage from the outputs of the measuring amplifiers is fed to the inputs of the adder 13, from whose output to the inverting input of the adder 14. The signal from the output of the amplifier 18 is converted by an analog-to-digital converter and fed to the input of the computing unit 20s indicator. In the computing unit, the resistance value of the thermocouple generator is determined from the measurement results.

Description

1313

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Фиг.7.7.

Claims (1)

Формула изобретения Устройство для многоточечного измерения температуры во взрывоопасной среде,по авт.св. № 1332163, о тличающееся тем, что, с целью повышения быстродействия при измерении криогенных температур, в него введены усилитель и второй сумматор, включенный между выходом дополнительного измерительного усилителя и первым входом первого сумматора, при этом в,ыход измерительного усилителя подключен к второму входу второго сум*· матора и через усилитель - к входу аналого-цифрового преобразователя.SUMMARY OF THE INVENTION A device for multi-point temperature measurement in an explosive atmosphere, according to ed. No. 1332163, characterized in that, in order to improve performance when measuring cryogenic temperatures, an amplifier and a second adder are inserted into it, connected between the output of the additional measuring amplifier and the first input of the first adder, while the output of the measuring amplifier is connected to the second input of the second sum * · of the matora and through the amplifier to the input of the analog-to-digital converter. Фиг. 2FIG. 2
SU884473648A 1988-08-15 1988-08-15 Device for multi-point measuring of temperature in explosion-dangerous medium SU1569591A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU884473648A SU1569591A1 (en) 1988-08-15 1988-08-15 Device for multi-point measuring of temperature in explosion-dangerous medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU884473648A SU1569591A1 (en) 1988-08-15 1988-08-15 Device for multi-point measuring of temperature in explosion-dangerous medium

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU1332163A Addition SU285923A1 (en) METHOD OF OBTAINING ORGANOTRIAL COXISILAN

Publications (1)

Publication Number Publication Date
SU1569591A1 true SU1569591A1 (en) 1990-06-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU884473648A SU1569591A1 (en) 1988-08-15 1988-08-15 Device for multi-point measuring of temperature in explosion-dangerous medium

Country Status (1)

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SU (1) SU1569591A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР № 1332163, кл. G 01 К 7/16, 1987. *

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