| Presentation | 2013-01-10 Measurement Accuracy Improvement of the Capacitive Voltage Probe Hirosi Satow, Nobuo Kuwabara, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Capacitive voltage probe (CVP) is used for measuring disturbances appearing telecommunications ports. However, the calibration is needed for every cable because the conversion factor of CVP changes depending on the kind of cable. A method not needing the calibration, which changes the loading capacitance, was reported. However, the measurement accuracy of the methods was insufficient to measure the disturbances at telecommunications port. The reasons why the accuracy was insufficient were the demand on the high accuracy of the voltage level and the time for changing loading capacitance. Therefore, we improve the method by use of the regression line and a relay switch. In the investigation, the regression lines were determined from the measurement results by using a network analyzer, and the relay switch was used to increase the switching speed of the load capacitance. A sinusoidal wave was injected to the LAN cable by a current probe and the conversion factor was determined from the measurement level deviation. The disturbances appearing at the telecommunication port were measured by the CVP and impedance stabilization network (ISN). The results showed that the measurement results by CVP almost agreed with the results by ISN when disturbance level was sufficient large. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Capacitive Voltage Probe / Common mode voltage / Impedance stabilization network |
| Paper # | EMCJ2012-107 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2013/1/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement Accuracy Improvement of the Capacitive Voltage Probe |
| Sub Title (in English) | |
| Keyword(1) | Capacitive Voltage Probe |
| Keyword(2) | Common mode voltage |
| Keyword(3) | Impedance stabilization network |
| 1st Author's Name | Hirosi Satow |
| 1st Author's Affiliation | kyushu Institute of Technology() |
| 2nd Author's Name | Nobuo Kuwabara |
| 2nd Author's Affiliation | kyushu Institute of Technology |
| Date | 2013-01-10 |
| Paper # | EMCJ2012-107 |
| Volume (vol) | vol.112 |
| Number (no) | 372 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |