KR950008698A - How to prevent measurement error of temperature measuring device - Google Patents

How to prevent measurement error of temperature measuring device Download PDF

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Publication number
KR950008698A
KR950008698A KR1019930018089A KR930018089A KR950008698A KR 950008698 A KR950008698 A KR 950008698A KR 1019930018089 A KR1019930018089 A KR 1019930018089A KR 930018089 A KR930018089 A KR 930018089A KR 950008698 A KR950008698 A KR 950008698A
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KR
South Korea
Prior art keywords
temperature
thermocouple sensor
detection signal
input capacitor
error
Prior art date
Application number
KR1019930018089A
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Korean (ko)
Other versions
KR970001967B1 (en
Inventor
성주현
Original Assignee
이성범
주식회사 우 진
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Publication date
Application filed by 이성범, 주식회사 우 진 filed Critical 이성범
Priority to KR1019930018089A priority Critical patent/KR970001967B1/en
Publication of KR950008698A publication Critical patent/KR950008698A/en
Application granted granted Critical
Publication of KR970001967B1 publication Critical patent/KR970001967B1/en

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

본 발명은 소모형 열전대 센서를 이용하여 고열 물질의 온도를 측정할 경우에 열전대 센서의 검출신호를 증폭하는 증폭기의 입력 콘덴서에 의한 온도측정의 오차를 제거하여 온도를 정확히 측정할 수 있도록 하는 것으로서 종래에는 열전대 센서의 검출신호를 증폭하는 증폭기의 입력 콘덴서에 충전된 전원의 방전여부에 관계없이 온도를 측정하였으므로 측정한 온도와 실제의 쇳물의 온도간에는 많은 온도차가 발생하였다.The present invention is to accurately measure the temperature by removing the error of the temperature measurement by the input capacitor of the amplifier to amplify the detection signal of the thermocouple sensor when measuring the temperature of the high temperature material using a consumable thermocouple sensor Since the temperature was measured irrespective of whether the power charged in the input capacitor of the amplifier to amplify the detection signal of the thermocouple sensor was discharged, a large temperature difference occurred between the measured temperature and the actual temperature of the water.

본 발명은 검지봉에 열전대 센서를 장착하여 상온으로 된 후 열전대 센서의 검출신호의 변화를 판별하고, 검출신호가 미리 설정된 온도 범위 설정회수 이상 유지될 경우에 입력 콘덴서의 충전전원이 모두 방전된 것으로 판단하고, 온도를 측정하게 함으로써 증폭기의 입력 콘덴서의 충전전원으로 인한 오차를 방지하고, 쇳물의 온도를 정확히 측정할 수 있도록 한다.According to the present invention, a thermocouple sensor is mounted on a detection rod to determine a change in a detection signal of a thermocouple sensor after reaching a room temperature. When the detection signal is maintained for a predetermined temperature range or more, the charging power of the input capacitor is discharged. By judging and measuring the temperature, it is possible to prevent an error due to the charging power of the input capacitor of the amplifier and to accurately measure the temperature of the water.

Description

온도 측정장치의 측정오차 방지방법How to prevent measurement error of temperature measuring device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 디지탈 온도 측정장치를 보인 회로도,1 is a circuit diagram showing a conventional digital temperature measuring device,

제2도는 본 발명의 측정오차 방지방법이 적용되는 디지탈 온도 측정장치를 보인 회로도,2 is a circuit diagram showing a digital temperature measuring apparatus to which the measuring error prevention method of the present invention is applied;

제3도는 본 발명의 측정오차 방지방법을 보인 신호 흐름도.3 is a signal flowchart showing a measurement error prevention method of the present invention.

Claims (2)

열전대 센서를 교체한 후 검출온도가 상온인지를 판별하는 제1 단계와, 상기 제1 단계에서 검출온도가 상온일 경우에 검출온도가 설정값 이내의 오차를 가지고 연속적으로 설정회수 이상 입력되는 지를 판별하는 제2단계와, 상기 제2 단계에서 설정값 이내의 오차로 설정회수 이상 입력될 경우에 입력된 온도 데이타에 따른 온도를 판별하여 출력하는 제3 단계로 됨을 특징으로 하는 온도 측정장치의 측정오차 방지방법.A first step of determining whether the detection temperature is room temperature after replacing the thermocouple sensor, and determining whether the detection temperature is continuously inputted more than a predetermined number of times with an error within the set value when the detection temperature is room temperature in the first step. And a third step of determining and outputting a temperature according to the input temperature data when a predetermined number of times or more is input due to an error within a set value in the second step. Prevention method. 제l항에 있어서, 제2 단계는, 검출온도가 ±1℃ 이내의 오차를 가지고 연속적으로 7회 이상 입력되는 지를 판별하는 것을 특징으로 하는 온도 측정장치의 측정오차 방지방법.The method of claim 1, wherein the second step determines whether the detected temperature is input seven times or more continuously with an error within ± 1 ° C. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930018089A 1993-09-09 1993-09-09 Thermometer KR970001967B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930018089A KR970001967B1 (en) 1993-09-09 1993-09-09 Thermometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930018089A KR970001967B1 (en) 1993-09-09 1993-09-09 Thermometer

Publications (2)

Publication Number Publication Date
KR950008698A true KR950008698A (en) 1995-04-19
KR970001967B1 KR970001967B1 (en) 1997-02-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930018089A KR970001967B1 (en) 1993-09-09 1993-09-09 Thermometer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101250211B1 (en) * 2012-03-05 2013-04-03 삼성탈레스 주식회사 Bending measurement system and its method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101250211B1 (en) * 2012-03-05 2013-04-03 삼성탈레스 주식회사 Bending measurement system and its method

Also Published As

Publication number Publication date
KR970001967B1 (en) 1997-02-20

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