KR970022333A - 펄스계 임피던스 측정계기 - Google Patents
펄스계 임피던스 측정계기 Download PDFInfo
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- KR970022333A KR970022333A KR1019960032402A KR19960032402A KR970022333A KR 970022333 A KR970022333 A KR 970022333A KR 1019960032402 A KR1019960032402 A KR 1019960032402A KR 19960032402 A KR19960032402 A KR 19960032402A KR 970022333 A KR970022333 A KR 970022333A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Claims (8)
- (a) 테스트 하려는 장치(DUT)에 결합하는 계기커넥터; (b) 상기 계기커넥터에 결합되어 상기 DUT에 자극펄스를 발생시키는 펄스발생기; (c) 상기 계기커넥터에 결합되어 상기 DUT로부터 응답신호를 수신하고 샘플링하여 디지탈 측정값을 제공하는 디지탈 샘플링 회로; (d) 상기 샘플링 회로에 결합되어 상기 디지탈 측정값을 수신하고 저장하여 상기 응답신호의 타임레코드를 형성하는 포착메모리; (e) 상기 포착메모리에 결합되어 상기 타임레코드를 수신하면서, 상기 타임레코드상에 고속 푸리에 변환을 행하여 주파수 도메인 표시를 구하고, 상기 주파수 도메인 표시 및 일 세트의 교정저항기의 측정으로부터 도출된 일 세트의 교정상수를 사용하여 상기 DUT의 일 세트의 복소 임피던스값을 계산하는 마이크로프로세서; 및 (f) 상기 마이크로프로세서에 결합되어 상기 세트의 복소 임피던스값을 가시적으로 표시하는 표시장치를 포함하는 것을 특징으로 하는 펄스계 임피던스 측정계기.
- 제1항에 있어서, 상기 자극신호는 반복적으로 발생되며, 상기 타임레코드는 상기 응답신호의 반복적인 디지탈 샘플링에 의해 얻어지는 것을 특징으로 하는 펄스계 임피던스 측정계기.
- 제1항에 있어서, 상기 마이크로프로세서는 상기 세트의 복소 임피던스값으로부터 일 세트의 반사감쇠량값을 계산하며, 상기 표시장치는 상기 세트의 반사감쇠량값을 가시적으로 표시하는 것을 특징으로 하는 펄스계 임피던스 측정계기.
- (a) 테스트 하려는 장치(DUT)에 결합하는 계기커넥터; (b) 상기 계기커넥터에 결합되어 상기 DUT를 가로질러 자극펄스를 반복적으로 발생시키는 펄스발생기; (c) 상기 계기커넥터에 결합되어 상기 자극펄스로부터의 선택된 시간지연에 상기 DUT로부터 응답신호를 반복적으로 샘플링하여 디지탈 측정값을 제공하는 디지탈 샘플링 회로; (d) 상기 디지탈 샘플링 회로에 결합되어, 상기 디지탈 측정값을 수신하고 상기 선택된 시간지연에 대응하는 메모리 로케이션에 저장하여, 상기 응답신호의 타임레코드를 작성하는 포착메모리; (e) 상기 포착메모리에 결합되어 상기 타임레코드를 수신하면서, 상기 타임레코드상에 고속 푸리에 변환을 행하여 주파수 도메인 표시를 구하고, 상기 주파수 도메인 표시 및 일 세트의 교정저항기의 측정으로부터 도출된 일 세트의 교정상수를 사용하여 상기 DUT의 일 세트의 복소 임피던스값을 계산하는 마이크로프로세서; 및 (f) 상기 마이크로프로세서에 결합되어 상기 세트의 복소 임피던스값을 가시적으로 표시하는 표시장치를 포함하는 것을 특징으로 하는 펄스계 임피던스 측정계기.
- 제4항에 있어서, 상기 마이크로프로세서는 상기 세트의 복소 임피던스값으로부터 일 세트의 반사감쇠량값을 계산하며, 상기 표시장치는 상기 세트의 반사감쇠량값을 가시적으로 표시하는 것을 특징으로 하는 펄스계 임피던스 측정계기.
- (a) 복수의 교정저항기를 측정하여 교정타임레코드를 구하는 단계; (b) 상기 각각의 교정타임레코드의 고속 푸리에 변환을 계산하여 복수의 교정 주파수 도메인 표시를 생성하는 단계; (c) 상기 교정 주파수 도메인 표시로부터 일 세트의 교정상수를 계산하는 단계; (d) DUT를 측정하여 타임레코드를 생성하는 단계; (e) 상기 타임레코드의 고속 푸리에 변환을 계산하여 주파수 도메인 표시를 생성하는 단계; (f) 상기 주파수 도메인 표시 및 상기 세트의 교정상수로부터 일 세트의 복소 임피던스를 계산하는 단계; 및 (g) 상기 세트의 복소 임피던스값을 가시적으로 표시하는 단계를 포함하는 것을 특징으로 하는 펄스계 복소 임피던스 측정방법.
- 제6항에 있어서, (a) 상기 DUT에 자극펄스를 반복적으로 발생시키는 단계; 및 (b) 상기 DUT로부터 응답신호를 반복적으로 샘플링하여 상기 타임레코드를 구하는 단계를 더욱 포함하는 것을 특징으로 하는 펄스계 복소 임피던스 측정방법.
- 제6항에 있어서, 상기 세트의 복소 임피던스값으로부터 일 세트의 반사감쇠량값을 계산하는 단계; 및 상기 세트의 반사감쇠량을 가시적으로 표시하는 단계를 더욱 포함하는 것을 특징으로 하는 펄스계 복소 임피던스 측정방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/540,927 | 1995-10-11 | ||
US08/540,927 US5633801A (en) | 1995-10-11 | 1995-10-11 | Pulse-based impedance measurement instrument |
US8/540,927 | 1995-10-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970022333A true KR970022333A (ko) | 1997-05-28 |
KR0173490B1 KR0173490B1 (ko) | 1999-04-01 |
Family
ID=24157486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960032402A Expired - Fee Related KR0173490B1 (ko) | 1995-10-11 | 1996-08-02 | 펄스계 임피던스 측정계기 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5633801A (ko) |
EP (1) | EP0768537B1 (ko) |
JP (1) | JP2782062B2 (ko) |
KR (1) | KR0173490B1 (ko) |
DE (1) | DE69627777T2 (ko) |
TW (1) | TW301712B (ko) |
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DE3703116A1 (de) * | 1987-02-03 | 1988-08-11 | Burkhard Prof Dr Ing Schiek | Verfahren zur stoersignalreduktion in messaufbauten zur untersuchung von emissions- oder transmissionsprozessen |
US4887041A (en) * | 1988-02-17 | 1989-12-12 | University Of Connecticut | Method and instrumentation for the detection, location and characterization of partial discharges and faults in electric power cables |
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US5371468A (en) * | 1991-11-30 | 1994-12-06 | Pelster; Rolf | Method for the determination of electromagnetic impedances in the frequency range from 1 Hz to 10 Hz |
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US5454377A (en) * | 1993-10-08 | 1995-10-03 | The Ohio State University | Method for measuring the myocardial electrical impedance spectrum |
GB9322920D0 (en) * | 1993-11-06 | 1993-12-22 | Bicc Plc | Device for testing an electrical line |
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1996
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- 1996-08-02 KR KR1019960032402A patent/KR0173490B1/ko not_active Expired - Fee Related
- 1996-08-13 TW TW085109832A patent/TW301712B/zh not_active IP Right Cessation
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JP2782062B2 (ja) | 1998-07-30 |
JPH09178786A (ja) | 1997-07-11 |
DE69627777D1 (de) | 2003-06-05 |
TW301712B (en) | 1997-04-01 |
KR0173490B1 (ko) | 1999-04-01 |
EP0768537B1 (en) | 2003-05-02 |
EP0768537A1 (en) | 1997-04-16 |
US5633801A (en) | 1997-05-27 |
DE69627777T2 (de) | 2004-02-19 |
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