KR940008703B1 - Absorption and displacement current tester of gas moment arrival safty device - Google Patents

Absorption and displacement current tester of gas moment arrival safty device Download PDF

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KR940008703B1
KR940008703B1 KR1019890001213A KR890001213A KR940008703B1 KR 940008703 B1 KR940008703 B1 KR 940008703B1 KR 1019890001213 A KR1019890001213 A KR 1019890001213A KR 890001213 A KR890001213 A KR 890001213A KR 940008703 B1 KR940008703 B1 KR 940008703B1
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converter
current
circuit
output
indicator
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KR1019890001213A
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KR900013312A (en
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유완동
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대우전자 주식회사
김용원
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G01R19/15—Indicating the presence of current

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  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
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Abstract

A current measuring device for measuring an absorption current and a secession current in a gas igniting safety device of an instant type is disclosed. The current measuring device comprises an up/down counter connected to an oscillator, a D/A converter connected to a power supply unit for converting an output of the counter into an analog signal, a differential amp unit for comparing a voltage of the magnetization coil with the output of the power supply unit, an A/D converter connected to a latch circuit, the D/A converter, and a display unit for converting the output of the differential AMP unit into a digital data, and a secession sensing circuit having sensors. As a result, the absorption current and a secession current are precisely measured by a sensing function of the sensors.

Description

가스(GAS)순간 착화안정장치의 흡착 및 이탈전류 측정장치Adsorption and release current measuring device of gas (GAS) instantaneous ignition stabilizer

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 발진회로 2 : 엎/다운카운터(UP/Down Counter)1: Oscillation Circuit 2: Up / Down Counter

3 : D/A변환기 4 : 전원부3: D / A Converter 4: Power Supply

5 : 래치회로 6 : A/D변환기5: Latch Circuit 6: A / D Converter

7 : 비교증폭회로 8 : 자화코일7: Comparative amplifier 8: Magnetized coil

9 : 흡착 및 이탈표시등 10 : 디스플레이장치9: adsorption and release indicator 10: display device

11 : 이탈감지회로 SW1: 스타트스위치11: Departure detection circuit SW 1 : Start switch

SW2: 리세트스위치 SW3: 리미트스위치SW 2 : limit switch SW 3 : limit switch

LED1: 흡착표시등 LED2: 이탈표시등LED 1 : Adsorption Indicator LED 2 : Departure Indicator

PD1: 발광센서 PD1: 수광센서PD 1 : Light emitting sensor PD 1 : Light receiving sensor

R1-R2: 저항 C1-C3: 트랜지스터R 1 -R 2 : Resistor C 1 -C 3 : Transistor

VR1-VR2: 가변저항VR 1 -VR 2 : Variable resistor

본 발명은 순간착화 안정장치의 흡착 및 이탈 전류를 측정하기 위한 것으로, 특히 흡착과 이탈되는 상태를 광센서에 의해 측정포인트(Point)를 결정하고 이때의 흡착전류 및 이탈전류를 측정하기 위한 것에 관한 것이다.The present invention is to measure the adsorption and release current of the instantaneous ignition stabilizer, in particular to determine the measurement point (Point) by the optical sensor in the state of adsorption and release and to measure the adsorption current and the release current at this time will be.

일반적인 가스(GAS) 순간착화 안전장치는 점화시에 점화버턴을 자화코일에 밀착시킨 상태에서 1-3초간 대기하였다가 서서히 점화시켜 왔었다.The general gas (ignition fire) safety device has been ignited slowly for 1-3 seconds with the ignition button in close contact with the magnetizing coil during ignition.

그 이유는 가스(GAS)를 점화시키는 코일이 자화되는 동안 만큼의 시간이 소요되기 때문이며, 만일 코일이 충분히 자화되지 못한 상태에서 점화시키게 되면 점화불꽃이 원만하게 생성되지 않게 된다.This is because it takes as long as the coil to ignite the gas (GAS) is magnetized, and if the coil is ignited without being sufficiently magnetized, the ignition flame is not generated smoothly.

따라서 이러한 문제를 보완하기 위하여 일회 밀착시켜 주기만 하면 내부 구조에 의해 코일의 자화시간동안 지연되어 안정된 점화불꽃을 만들수 있는 것이 이미 고안되었던바, 이러한 순간착화 안전장치가 안정된 동작을 하기 위해서는 자화코일에 흡착되었을 때의 전류가 130mA 이상, 그리고 자화코일로부터 이탈될때의 전류는 20mA 이상이 되어야만 하는 조건을 만족시켜 주어야 하는 문제가 발생하게 되며 따라서 상기 조건을 측정할 수 있는 측정장치가 필요하게 된다.Therefore, in order to compensate for this problem, it was already devised to make a stable ignition flame by delaying the magnetization time of the coil by the internal structure. When the current is more than 130mA, and when the current is separated from the magnetizing coil has a problem that must satisfy the condition that should be more than 20mA, and thus there is a need for a measuring device capable of measuring the above conditions.

그러므로 종래의 순간착화 안전장치의 흡착 및 이탈전류의 측정은 D.V.M(Digital Volt Meter)에 의해 측정되었으나 흡착 및 이탈되는 측정점을 쉽게 잡을수 없어 각 전류의 값이 불확실하게 되며 1회측정에 시간이 많이 소요되는 등의 문제점이 발생하였던 것이다.Therefore, the measurement of adsorption and release current of the conventional ignition safety device is measured by DVM (Digital Volt Meter), but it is not easy to grasp the measurement points of adsorption and release. There is a problem such as being.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 자화코일에서 흡착 및 이탈되는 측정점을 광센서로 감지하고 이의 신호에 의해서 흡착 또는 이탈전류를 정확하게 측정함으로서 정밀성을 높이고 측정방법이 간소화됨과 동시에 측정장치에 소형화되어 장비 제작시에 야기되는 문제점을 제거하고 쉽게 측정을 할 수 있어 가스(GAS) 순간 착화측정장치의 신뢰성 향상에 기여하는데 본 발명의 목적이 있는 것이다.The present invention has been made to solve the above problems, by measuring the adsorption and departure from the magnetization coil with an optical sensor and by accurately measuring the adsorption or departure current by its signal to increase the precision and simplify the measurement method It is an object of the present invention to contribute to the improvement of the reliability of the gas (GAS) instantaneous ignition measuring device by minimizing the measuring device to eliminate the problems caused during the manufacturing of the equipment and easy measurement.

제1도에서와 같이 주파수를 발진하는 발진회로(1)에 2진카운터로 변환하는 엎/다운카운터(2)를 연결하고, 이의 출력단을 디지탈신호를 아날로그신호로 변환하는 D/A변환기(3)에 접속함과 동시에 스타트스위치(SW1)와 장치를 초기화시키는 리세트스위칠를 각각 연결되게 하며, D/A변환기(3)에는 전압을 인가하는 전원부(4)와 저항(R1)을 통하여 반전증폭하는 비교증폭회로(7)에 인가하는 한편, 보호용저항(R2)을 거쳐 전기적으로 자화되는 자화코일(8)에 연결한다.As shown in FIG. 1, a D / A converter (3) for connecting a down / down counter (2) for converting a binary counter to an oscillating circuit (1) for oscillating frequency and converting a digital signal to an analog signal at its output stage (3) ) And at the same time the start switch (SW 1 ) and the reset switch for initializing the device are connected, respectively, and the D / A converter (3) through the power supply (4) and the resistor (R 1 ) for applying a voltage. The inverted amplification is applied to the comparative amplification circuit 7 and is connected to the magnetized coil 8 which is electrically magnetized via the protective resistor R 2 .

또한 비교증폭회로(7)의 출력측을 아날로그신호를 디지탈신호로 변환하는 A/D변환기(6)에 접속하되, 상기 A/D변환기(6)에는 "하이" 펄스를 출력하는 래치회로(5)와 디스플레이장치(10) 및 D/A변환기(3)에 각각 연결하며, 래치회로(5)에는 리세트스위칠와 자화코일(8)과 연동되는 리미트스위치(SW3) 그리고 흡착표시등(LED1) 이탈표시등(LED2)과 트랜지스터(Q1-Q2)로 구성된 흡착 및 이탈표시등(9)과 발광센서(PD1)와 수광센서(PD2)로된 이탈감지회로(11)를 접속되도록 하고, 리미트스위치(SW3)에는 이탈감지회로(11)와 자화코일(8)에 연결하여서 된 순간착화 안전장치의 흡착 및 이탈전류 측정장치인 것이다.A latch circuit 5 for connecting the output side of the comparison amplification circuit 7 to an A / D converter 6 for converting an analog signal into a digital signal, and outputting a "high" pulse to the A / D converter 6. And the display device 10 and the D / A converter 3, respectively, and the latch circuit 5 includes a limit switch SW 3 interlocked with the reset switch and the magnetization coil 8 and an adsorption indicator (LED 1). ) The desorption detection circuit 11 consisting of the desorption and desorption indicator 9 consisting of the desorption indicator LED 2 and the transistors Q 1 -Q 2 , the light emitting sensor PD 1 and the light receiving sensor PD 2 . The limit switch SW 3 is connected to the detachment detecting circuit 11 and the magnetization coil 8 to be a suction and release current measuring device of the instantaneous ignition safety device.

상기와 같은 구성으로 이루어진 본 발명의 작용 및 효과를 설명하면 다음과 같다. 먼저 본 발명의 측정장치에 부착된 치구의 흡착기구를 밀어 안전장치가 자화코일(8)에 흡측되었는가를 확인한후 리미트스위치(SW2)를 접속시켜 장치를 초기화시키고 디스플레이장치(10)의 전류값을 130mA로 조정한후 스타트스위침를 온(ON) 상태로 접속시키게 되면 흡착 및 이탈표시등(9)의 흡착표시등(LED1)이 점등되어 자화코일에 흡착되었음을 알리게 됨과 동시에 발진회로(1)에서 출력되는 주파수는 엎/다운카운터(2)의 클럭으로 인가되며 이러한 주파수는 2진카운터값으로 변환되어 D/A변환기(3)에 입력됨으로서 이에 상응하는 디지탈신호를 아날로그신호로 변환하여 출력전압에 의해 전원부(4)의 전압이 조절된다.Referring to the operation and effects of the present invention made of the above configuration is as follows. First, after confirming that the safety device is absorbed by the magnetization coil 8 by pushing the suction mechanism of the jig attached to the measuring device of the present invention, the limit switch SW 2 is connected to initialize the device and the current value of the display device 10. Is adjusted to 130mA and the start switch is connected to the ON state, the adsorption indicator (LED 1 ) of the adsorption and departure indicator (9) lights up to indicate that it is adsorbed on the magnetization coil and at the same time the oscillation circuit (1) The output frequency is applied to the clock of the down / down counter (2), and this frequency is converted into a binary counter value and input to the D / A converter (3), so that the corresponding digital signal is converted into an analog signal to the output voltage. By this, the voltage of the power supply unit 4 is adjusted.

이 출력된 전압은 전원부(4)를 거쳐 비교증폭기(7)에 인가되어 반전증폭되며 동시에 전원부(4)의 출력전압이 보호용저항(R2)을 통하여 자화코일(8)에 인가되며, 이때 비교증폭기(7)의 출력이 A/D변환기(6)에 입력됨으로서 아날로그신호를 디지탈신호로 변환하여 이의 신호를 디스플레이장치(10)에 보내어 자화코일(8)에 흡착되었을 때의 전류값이 표시된다.The output voltage is applied to the comparison amplifier 7 via the power supply unit 4 and inverted and amplified. At the same time, the output voltage of the power supply unit 4 is applied to the magnetization coil 8 through the protection resistor R 2 . The output of the amplifier 7 is input to the A / D converter 6, thereby converting an analog signal into a digital signal and sending the signal to the display device 10 to display the current value when the magnetization coil 8 is adsorbed. .

이때 디스플레이장치(10)에 표시된 전류값이 130mA 이상이 되면 자화코일(8)이 충분히 전기적으로 자화되었음을 뜻하므로 안정된 점화불꽃이 출력되게 되어 양질의 제품으로 선별하게 된다.At this time, if the current value displayed on the display device 10 is 130mA or more, it means that the magnetization coil 8 is sufficiently electrically magnetized, so that a stable ignition flame is outputted, thereby selecting a high quality product.

한편 자화코일(8)에 전기적자화가 완료되어(약 1-3초후) 자화코일(8)로부터 이격되기 시작하면 발광센서(PD1)가 점등되어 이의 신호를 수광센서(PD2)가 감지하여 점등시키게 됨과 동시에 리미트스위치(SW2)가 접속되므로서 래치회로(5)와 엎/다운카운터(2)에 인가된다.On the other hand, when the magnetization of the magnetization coil (8) is completed (about 1-3 seconds) and separated from the magnetization coil (8), the light emitting sensor (PD 1 ) is turned on and the signal received by the light receiving sensor (PD 2 ) At the same time as the light is turned on, the limit switch SW 2 is connected to the latch circuit 5 and the down / down counter 2.

이때 래치회로(5)에서 트랜지스터(Q2)의 베이스에 "하이(HIGH)"신호를 인가하여 이탈표시등(LED2)을 점등시키고 A/D변환기(6)의 이탈전류를 홀더(HOLD)하여 디스플레이장치(10)에 자화코일(8)로부터 이탈되는 전류가 표시된다.At this time, the latch circuit 5 applies a " HIGH " signal to the base of the transistor Q 2 to turn on the break-up indicator LED 2 and hold the break-up current of the A / D converter 6 in the holder HOLD. Is displayed on the display device 10 from the magnetizing coil 8.

따라서 자화코일(8)에서 이탈되는 전류가 20mA 이하일 경우에는 자화코일(8)이 충분히 전기적으로 자화되지 못함을 의미하게 되므로 결국 가스(GAS)를 안전하게 점화시킬수 없어 불량으로 처리하도록 한 것이다.Therefore, when the current leaving the magnetization coil 8 is 20 mA or less, it means that the magnetization coil 8 is not sufficiently electrically magnetized. Therefore, the gas GAS cannot be safely ignited and treated as defective.

이상에서 상술한 바와 같이 작용하는 본 발명은 순간착화 안전장치의 흡착 및 이탈전류를 측정하기 위하여 자화코일(8)로부터 이탈되는 지점을 발광 및 수광센서(PD1-PD2)에 의해 감지하고 이때의 전류를 정밀하게 측정함으로서 숱간착화 안정장치의 측정방법이 편리하게 되며 장치가 소형화되어 양질의 순간착화 안전장치만을 선별할 수 있도록 한 것이다.The present invention, which acts as described above, detects the point of departure from the magnetization coil 8 by the light-emitting and light-receiving sensors PD 1 -PD 2 to measure the adsorption and release current of the instantaneous ignition safety device. By precisely measuring the current, the measuring method of thinning ignition stabilizer is convenient, and the device is miniaturized to select only high quality instant ignition safety devices.

Claims (1)

주파수를 발진하는 발진회로(1)에 발진된 신호를 2진카운터로 변환하는 엎/다운카운터(2)를 연결하고, 이의 출력단을 디지탈신호를 아날로그신호로 변환하는 D/A변환기(3)에 접속함과 동시에, 스타트스위치(SW1)와 장치를 초기화시키는 리세트스위칠를 각 연결되게 하며, D/A변환기(3) 출력단에는 전원부(4)와 저항(R1)을 통하여 반전증폭하는 비교증폭회로(79에 인간하는 한편, 보호용저항(R2)을 거쳐 전기적으로 자화되는 자화코일(8)에 연결하고, 비교증폭회로(7)의 출력측을 아날로그신호를 디지탈신호로 변환하는 A/D변환기(6)에 접속하되, 상기 A/D변환기(6)에는 "하이"펄스를 출력하는 래치회로(5)와 디스플레이장치(10) 및 D/A변환기(3)에 각각 연결하며, 래치회로(5)에는 리미트스위치(SW2)와 자화코일(8)과 연동되는 리미트스위치(SW3), 그리고 흡착표시등(LED1) 이탈표시등(LED2)과 트랜지스터(Q1-Q2)로 구성된 흡착 및 이탈표시등(9)과 발광센서(PD1)와 수광센서(PD2)로된 이탈감지회로(11)을 접속하고, 리미트스위치(SW3)에는 이탈감지회로(11)와 자화코일(8)에 연결하여 구성함을 특징으로 하는 가스순간착화 안전장치의 흡착 및 이탈전류 측정장치.Connect a down / down counter (2) for converting the oscillated signal into a binary counter to the oscillation circuit (1) that oscillates frequency, and output its output to a D / A converter (3) for converting a digital signal into an analog signal. At the same time, the start switch SW 1 and a reset switch for initializing the device are connected. The D / A converter 3 outputs an inverted amplification through the power supply 4 and the resistor R 1 . A / D which is connected to the magnetizing coil 8 which is humanized to the amplification circuit 79 and is electrically magnetized via the protective resistor R 2 , and converts the analog signal into a digital signal on the output side of the comparison amplification circuit 7. A latch circuit 5 for outputting a "high" pulse to the A / D converter 6 and a display device 10 and a D / A converter 3, respectively, connected to the converter 6, and the latch circuit (5), the limit switch (SW 2 ) and the limit switch (SW 3 ) in conjunction with the magnetizing coil (8), and the suction indicator ( LED 1 ) Desorption detection circuit consisting of a desorption indicator (LED 2 ) and the adsorption and desorption indicator (9) consisting of transistors (Q 1 -Q 2 ), a light emitting sensor (PD 1 ) and a light receiving sensor (PD 2 ) (11) ), And the limit switch (SW 3 ) is connected to the separation detection circuit (11) and the magnetizing coil (8), characterized in that the adsorption and escape current measurement device of the gas instantaneous safety device.
KR1019890001213A 1989-02-02 1989-02-02 Absorption and displacement current tester of gas moment arrival safty device KR940008703B1 (en)

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KR1019890001213A KR940008703B1 (en) 1989-02-02 1989-02-02 Absorption and displacement current tester of gas moment arrival safty device

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KR1019890001213A KR940008703B1 (en) 1989-02-02 1989-02-02 Absorption and displacement current tester of gas moment arrival safty device

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KR940008703B1 true KR940008703B1 (en) 1994-09-26

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