KR950025442A - Design of Constant Temperature Thermometer Using Negative Temperature Resistance Coefficient Sensor - Google Patents

Design of Constant Temperature Thermometer Using Negative Temperature Resistance Coefficient Sensor Download PDF

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Publication number
KR950025442A
KR950025442A KR1019940001895A KR19940001895A KR950025442A KR 950025442 A KR950025442 A KR 950025442A KR 1019940001895 A KR1019940001895 A KR 1019940001895A KR 19940001895 A KR19940001895 A KR 19940001895A KR 950025442 A KR950025442 A KR 950025442A
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South Korea
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sensor
hot wire
resistance
bridge
constant temperature
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KR1019940001895A
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Korean (ko)
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고상근
이신표
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고상근
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Priority to KR1019940001895A priority Critical patent/KR950025442A/en
Publication of KR950025442A publication Critical patent/KR950025442A/en

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Abstract

유체의 속도를 측정하는 수단으로 종래의 양의 온도저항계수를 갖는 재질, 예를들면 텅스텐이나 백금에 비하여 값이 훨씬 싸고, 출력감도가 우수한 부의 온도저항계수를 갖는, 예를들어 탄소파이버를 이용하여 정온도형 열선유속계의 센서를 제작하는 방법. 상기의 제작방법은 열선저항센서를 전극 즉 센서지지부에 납땜 또는 전기전도성 접착제로 접착함으로써 이루어진다. 그리고 이를 이용한 열선유속계를 구성하기 위하여, 유체속도 변화에 따른 상기 센서의 저항변화를 검출하는 가변저항과 열선센서저창이 대향하고 있는, 브릿지를 구성하기 위하여, 유체속도변화에 따른 상기 센서의 저항변화를 검출하는, 가변저항과 열선센서저항이 대향하고 있는 브릿지를 구성하고 직류증폭기를 설계하여, 예를들면, 탄소파이버를 이용한 열선센서를 채택하여 정온도형 열선유속계.As a means of measuring the velocity of a fluid, a material having a positive temperature resistance coefficient such as tungsten or platinum is much cheaper and has a negative temperature resistance coefficient having excellent output sensitivity, for example, using carbon fiber. To produce a sensor of a constant temperature type thermal flux meter. The manufacturing method is performed by attaching a heat resistance sensor to an electrode, that is, a sensor support part by soldering or an electrically conductive adhesive. And in order to construct a hot wire flowmeter using the same, the variable resistance for detecting the resistance change of the sensor according to the fluid speed change and to configure a bridge, the heat sensor base is opposed, the resistance change of the sensor according to the fluid speed change A constant temperature type thermal flux meter is constructed by constructing a bridge in which a variable resistor and a thermal sensor resistance are opposed to each other, and designing a direct current amplifier, for example, by adopting a thermal sensor using carbon fiber.

Description

부온도저항계수 센서를 이용한 정온도형 열형유속계의 설계Design of Constant Temperature Thermometer Using Negative Temperature Resistance Coefficient Sensor

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

제1도는 본 발명의 일실시예에 따라 부온도저항특성을 갖는 탄소파이버를 전극에 부착시켜 열선센서를 만드는 과정을 도시한 것이다.1 is a view illustrating a process of making a hot wire sensor by attaching a carbon fiber having a negative temperature resistance characteristic to an electrode according to an embodiment of the present invention.

제2A도는 본 발명의 일실시예에 따라 부온도저항계수를 갖는 물질을 유속측정용 센서로 사용하기 위한 정온도형 열선유속계의 회로도이다.2A is a circuit diagram of a constant temperature type heat flux meter for using a material having a negative temperature resistance coefficient as a flow rate measuring sensor according to an exemplary embodiment of the present invention.

제2B도는 종래의 양의 온도저항계수를 갖는 물질을 유속측정용 센서로 사용하기 위한 정온도형 열선유속계의 회로도이다.2B is a circuit diagram of a constant temperature type heat flux meter for using a material having a positive temperature resistance coefficient as a sensor for measuring the flow rate.

Claims (7)

부의 저항온도계수을 가지는 재질로된 열선센서저항을 포함하는 열선센서와 이 열선센서의 저항변화를 측정하는 측정수단을 포함하는 열선유속계.A hot wire flowmeter comprising a hot wire sensor comprising a hot wire sensor resistance made of a material having a negative resistance temperature coefficient and measuring means for measuring a resistance change of the hot wire sensor. 부의 저항온계수를 가지는 재질로된 열선센서저항을 가진 열선센서를 포함하는 브릿지회로와 차동증폭기를 포함하는 열선유속계.A heat flux meter comprising a differential amplifier and a bridge circuit comprising a heat radiation sensor having a heat radiation sensor resistance made of a material having a negative resistance temperature coefficient. 제2항에 있어서, 상기 재질은 탄소파이버인 열선유속계.The hot wire flow meter according to claim 2, wherein the material is carbon fiber. 제2항에 있어서, 상기의 브릿지에서 열선센서와 가변저항을 포함하고 이들이 마주보고 있는 열선유속계.3. The heating wire tachometer according to claim 2, wherein the bridge includes a heating sensor and a variable resistor and face each other. 제2항 또는 제4항에 있어서, 상기 브릿지와 차동증폭기는 부귀환폐회로로 연결된 열선유속계.The hot wire tachometer according to claim 2 or 4, wherein the bridge and the differential amplifier are connected by a negative feedback closed circuit. 제2항에 있어서, 상기 열선센서는 서로 납으로 접합된 열선지지부와 열선센서저항을 포함하는 것을 특징으로 하는 열선유속계.The hot wire tachometer according to claim 2, wherein the hot wire sensor comprises a hot wire support portion and a hot wire sensor resistor bonded to each other by lead. 제2항에 있어서, 상기의 열선센서는 전기전도성 접착제에 의하여 접합된 열선지지부와 열선저항을 포함하는 것을 특징으로 하는 열선유속계.The hot wire flow meter according to claim 2, wherein the hot wire sensor comprises a hot wire support portion and a hot wire resistance bonded by an electrically conductive adhesive. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940001895A 1994-02-02 1994-02-02 Design of Constant Temperature Thermometer Using Negative Temperature Resistance Coefficient Sensor KR950025442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940001895A KR950025442A (en) 1994-02-02 1994-02-02 Design of Constant Temperature Thermometer Using Negative Temperature Resistance Coefficient Sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940001895A KR950025442A (en) 1994-02-02 1994-02-02 Design of Constant Temperature Thermometer Using Negative Temperature Resistance Coefficient Sensor

Publications (1)

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KR950025442A true KR950025442A (en) 1995-09-15

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