KR930004305Y1 - Noise compensation circuit of signal generator - Google Patents

Noise compensation circuit of signal generator Download PDF

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Publication number
KR930004305Y1
KR930004305Y1 KR2019900005590U KR900005590U KR930004305Y1 KR 930004305 Y1 KR930004305 Y1 KR 930004305Y1 KR 2019900005590 U KR2019900005590 U KR 2019900005590U KR 900005590 U KR900005590 U KR 900005590U KR 930004305 Y1 KR930004305 Y1 KR 930004305Y1
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South Korea
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signal
signal generator
level
resistor
amplifier
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KR2019900005590U
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Korean (ko)
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KR910019092U (en
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이훈규
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금성일렉트론 주식회사
문정환
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    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K3/00Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01Details

Abstract

내용 없음.No content.

Description

신호 발생기신호 측정회로Signal Generator Signal Measuring Circuit

제1도는 종래의 신호 발생기 신호 측정회로도.1 is a conventional signal generator signal measurement circuit diagram.

제2도는 제1도에서의 신호 레벨 측정 흐름도.2 is a signal level measurement flowchart in FIG.

제3도는 본 고안에 따른 신호 발생기 신호 측정 회로도.3 is a signal generator signal measurement circuit diagram according to the present invention.

제4도는 제3도에서의 신호 레벨 측정 흐름도.4 is a signal level measurement flowchart in FIG.

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

1 : 신호발생기 2 : 증폭기1: Signal Generator 2: Amplifier

3 : 완충기 4 : 신호레벨 측정기3: shock absorber 4: signal level meter

5 : 전원전압 6 : 전압측정기5: power supply voltage 6: voltage meter

7a,7b : 릴레이스위치 8-11 : 저항7a, 7b: Relay switch 8-11: Resistance

12-14 : 콘덴서 15 : 다이오드12-14: Capacitor 15: Diode

본 고안은 신호 발생기에 관한 것으로, 특히 신호발생기에서의 모든 신호레벨 및 주파수 대역에서의 잡음레벨을 보상해 줌으로써 신호발생기의 신호를 정확히 측정할수 있도록한 신호발생기 신호 측정회로에 관한 것이다.The present invention relates to a signal generator, and more particularly, to a signal generator signal measuring circuit capable of accurately measuring a signal of a signal generator by compensating for all signal levels and noise levels in a frequency band.

종래의 신호발생기 신호측정회로는 제1도에 도시된 바와같이, 신호발생기(Signal Generator)(1)는 저항(8)을 거쳐 접지됨과 동시에 콘덴서(12)를 거쳐 증폭기(Amplifier)(2)에 연결되고, 상기 증폭기(2)는 완충기(Buffer)(3)와 저항(9)을 차례로 거쳐 신호레벨 측정기(signal voltmeter)(4)에 연결되는 구성으로서, 제2도에 도시된 신호 레벨 측정흐름도를 참고로 상기 구성의 동작상태를 설명하면 다음과 같다.In the conventional signal generator signal measuring circuit, as shown in FIG. 1, the signal generator 1 is grounded via a resistor 8 and simultaneously connected to an amplifier 2 through a capacitor 12. The amplifier 2 is connected to a signal voltmeter 4 through a buffer 3 and a resistor 9 in sequence, and the signal level measurement flow diagram shown in FIG. Referring to the operation state of the configuration with reference to as follows.

제1도에서 신호발생기(1)는 주파수가 ″f″이고 피크레벨이 ″Vi″인 신호를 발생시키고, 이와같은 신호는 이득이 ″G1″인 증폭기(2)에 입력되어 이득(G1)만큼 증폭되고, 증폭된 신호(G1xVi)는 완충기(3)에 입력되며, 완충기(3)에서는 ″G2″만큼 증폭되고, 증폭된 신호(G1xG2xVi)는 신호레벨 측정기(4)에 출력되며, 상기 신호 레벨 측정기(4)에서는 상기 신호의 피크 레벨(Vo)을 측정한다.In Fig. 1, the signal generator 1 generates a signal having a frequency of ″ f ″ and a peak level of ″ Vi ″, and such a signal is input to an amplifier 2 having a gain of ″ G1 ″ and is equal to the gain G1. The amplified and amplified signal G1xVi is input to the buffer 3, amplified by ″ G2 ″ in the buffer 3, and the amplified signal G1xG2xVi is output to the signal level measuring device 4, and the signal level The meter 4 measures the peak level Vo of the signal.

즉 신호발생기(1)의 출력레벨(Vi)은 ″″가 된다.That is, the output level Vi of the signal generator 1 is ″ Becomes ″.

그러나 이와같은 종래의 신호발생기 신호 측정회로는 잡음신호에 대한 레벨측정이 불가능하며 잡음신호에 대한 신호발생기의 출력 보상이 불가능한 문제점이 있었다.However, such a conventional signal generator signal measuring circuit has a problem that it is impossible to measure the level of the noise signal and the output compensation of the signal generator for the noise signal is impossible.

본 고안은 이와같은 종래의 문제점을 감안하여, 신호발생기에서의 모든 신호레벨 및 주파수 대역에서의 잡음 레벨을 보상하여 줄수있게 안출한 것으로, 이를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention is designed to compensate for all the signal levels in the signal generator and the noise level in the frequency band in view of such a conventional problem, which will be described in detail with reference to the accompanying drawings.

제3도는 본 고안에 따른 신호발생기 신호 측정회로도로서, 이에 도시한 바와같이 신호발생기(1)는 저항(8)을 통해 접지됨과 동시에 콘덴서(12)를 통해 릴레이 스위치(7a)의 공통단자(P)에 연결되고, 상기 릴레이 스위치(7a)의 접점(a)은 증폭기(2)를 통해 릴레이 스위치(7b)이 접점(a)에 연결되고, 릴레이스위치(7a,7b)의 접점(b)은 서로 연결되고 릴레이 스위치(7b)의 공통단자(P)는 완충기(3)와 저항(9)을 차례로 거쳐 신호레벨 측정기(4)와 콘덴서(13)에 연결되고, 콘덴서(13)는 저항(10)을 거쳐 전원전압(Voltage Source)(5)에 연결됨과 동시에 다이오드(15)를 통해 전압측정기(Voltmeter)(6)와 일단이 접지된 콘덴서(14) 및 저항(11)에 연결되는 구성으로서, 제4도에 도시된 흐름도를 참고로 상기한 기술구성의 동작상태 및 작용, 효과를 설명하면 다음과 같다.3 is a signal generator signal measuring circuit diagram according to the present invention, as shown in this, the signal generator 1 is grounded through the resistor 8 and at the same time the common terminal P of the relay switch 7a through the condenser 12. ), The contact point a of the relay switch 7a is connected to the contact point a via the amplifier 2, and the contact point b of the relay switches 7a and 7b is connected to the contact point a. The common terminal P of the relay switch 7b is connected to each other and is connected to the signal level meter 4 and the condenser 13 through the buffer 3 and the resistor 9 in turn, and the capacitor 13 is connected to the resistor 10. Is connected to a power source (Voltage Source) (5) and at the same time through a diode (15) to a voltage meter (Voltmeter) 6 and one end is grounded to the capacitor (14) and the resistor (11), Referring to the flow chart shown in Figure 4 will be described the operation state, operation, and effect of the above described technical configuration as follows.

우선 제3도의 신호발생기(1)에서 신호를 발생하지 않고 전압 측정기(6)에서 잡음레벨의 피크 값만을 측정하여 ″AO″에 저장(Store)한다. 이후 신호발생기(1)는 주파수가 ″f″이고, 피크레벨이 ″Vi″인 신호를 발생시키고, 이와같은 신호는 릴레이 스위치(7a)를 통해 이득이 ″G1″인 증폭기(2)에 입력되어 이득(G1) 만큼 증폭되고, 증폭된 신호(G1×Vi)는 릴레이 스위치(7b)를 통해 완충기(3)에 입력되면, 완충기(3)에서는 ″G2″만큼 증폭하고, 증폭된 신호(G1×G2×Vi)는 신호레벨 측정기(4)에 입력되고, 신호레벨 측정기(4)에서는 신호의 피크레벨을 측정하여 ″Vo″에 저장한다.First, the signal generator 1 of FIG. 3 does not generate a signal, and only the peak value of the noise level is measured by the voltage meter 6 and stored in "AO". The signal generator 1 then generates a signal with a frequency of ″ f ″ and a peak level of ″ Vi ″, which is input to the amplifier 2 with a gain of ″ G1 ″ through the relay switch 7a. When the amplified signal G1 x Vi is amplified by the gain G1 and input to the shock absorber 3 through the relay switch 7b, the shock absorber 3 amplifies by "G2" and the amplified signal G1 x G2 x Vi) is input to the signal level measuring device 4, and the signal level measuring device 4 measures the peak level of the signal and stores it in " Vo ".

이때 완충기(3)의 출력 피크레벨(G1×G2×Vi)은 콘덴서(13)를 통과하여 신호의 직류 성분은 완전히 제거되고 교류성분만이 나타나며, 상기 교류신호는 전원전압(5)에서 발생된 직류성분(Vs)과 다시 합성되고, 직류성분(Vs)에 합성된 신호는 다이오드(15)와 콘덴서(14)에 의해 신호와 피크 레벨값을 유지하게 되고, 이 신호는 전압 측정기(6)에서 직류의 피크값이 측정되어 ″A1″에 저장된다.At this time, the output peak level (G1 x G2 x Vi) of the shock absorber 3 passes through the condenser 13 so that the direct current component of the signal is completely removed and only the AC component appears. The signal synthesized again with the DC component Vs and the signal synthesized with the DC component Vs maintains the signal and the peak level value by the diode 15 and the condenser 14. The peak value of direct current is measured and stored in ″ A1 ″.

따라서, 무신호시 전압측정기(6)에서 측정한 잡음 레벨의 측정값(Ao)과 신호 발생시의 측정값(A1)의 차(A=A1-AO)를 구하여 ″A″에 저장한다. 따라서 상기에서 구한잡음 레벨이 제거된 신호 ″A″값을 이용하여 신호발생기(1)의 레벨 보상 값으로 사용하면 ″″가 이때 신호발생기(1)에서 발생하는 신호레벨이 작으면 릴레이 스위치(7a,7b)를 접점(a)을 절환하여 증폭기(2)로 증폭한 후 완충기(3)에 입력시키고, 신호레벨이 크면 릴레이 스위치(7Aa,7b)를 접점(b)으로 절환하여 증폭시키지 않은 신호를 완충기(3)로 입력시킨다.Therefore, the difference (A = A1-AO) between the measured value Ao of the noise level measured by the no-voltage voltage meter 6 and the measured value A1 at the time of signal generation is obtained and stored in "A". Therefore, if the noise level obtained above is used as the level compensation value of the signal generator 1 by using the value of the signal ″ A ″, ″ At this time, if the signal level generated by the signal generator 1 is small, the relay switches 7a and 7b are switched to the contact point a, amplified by the amplifier 2 and input to the buffer 3, and the signal level is increased. If large, the relay switches 7Aa and 7b are switched to the contact point b to input a signal that has not been amplified to the buffer 3.

이상에서 설명한 바와같이 본 고안은 모든 주파수 대역에서의 잡음이 보상된 레벨의 신호를 발생할 수 있고, 증폭기(2) 양측의 릴레이 스위치(7a,7b)를 사용하여 신호레벨이 큰 경우와 작은경우를 선별하여 측정함으로써 신호발생기의 신호를 정확히 측정할 수 있는 효과가 있다.As described above, the present invention can generate a signal having a level compensated with noise in all frequency bands, and the case where the signal level is large or small by using the relay switches 7a and 7b on both sides of the amplifier 2. By selecting and measuring, the signal of the signal generator can be measured accurately.

Claims (1)

신호발생기(1)에서 발생된 신호를 저항(R8)및 콘덴서(12)를 통하고, 증폭기(2)및 완충기(3)를 다시 통해 증폭한후 신호레벨 측정기(4)로 피크 레벨을 측정하는 신호발생기 신호 측정회로에 있어서, 상기 콘덴서(12)를 통한 신호가 상기 증포기(2)를 통하거나 직접 상기 완충기(3)에 입력되게 상기 증폭기(2)의 양측에 릴레이 스위치(7a,7b)를 접속하고, 상기 신호레벨측정기(4)의 입력측을 콘덴서(13) 및 저항(10)을 통해 전원전압(5)에 접속함과 아울러 상기 콘덴서(13) 및 저항(10)의 접속점을 다이오드(15)를 통해 콘덴서(14), 저항(11)및 전압측정기(6)에 접속하여 구성된 것을 특징으로 하는 신호발생기 신호 측정회로.The signal generated by the signal generator 1 is amplified again through the resistor R 8 and the condenser 12, through the amplifier 2 and the buffer 3, and the peak level is measured by the signal level meter 4. In the signal generator signal measuring circuit, relay switches 7a and 7b on both sides of the amplifier 2 such that a signal through the condenser 12 is inputted through the amplifier 2 or directly to the shock absorber 3. ), The input side of the signal level measuring device 4 is connected to the power supply voltage 5 through the capacitor 13 and the resistor 10, and the connection point of the capacitor 13 and the resistor 10 is connected to the diode. A signal generator signal measuring circuit, characterized in that it is connected to a capacitor (14), a resistor (11), and a voltage meter (6) through (15).
KR2019900005590U 1990-04-30 1990-04-30 Noise compensation circuit of signal generator KR930004305Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019900005590U KR930004305Y1 (en) 1990-04-30 1990-04-30 Noise compensation circuit of signal generator

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Application Number Priority Date Filing Date Title
KR2019900005590U KR930004305Y1 (en) 1990-04-30 1990-04-30 Noise compensation circuit of signal generator

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KR910019092U KR910019092U (en) 1991-11-29
KR930004305Y1 true KR930004305Y1 (en) 1993-07-10

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