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Parameters
of Inductive
Pick-Up (IPU) and Active Hybrid Circuit (AHC ) |
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IPU |
Electrical centre position error |
< 0.1 mm |
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Range of linearity to 50 mm |
± 5 mm |
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Transformer load RS / turn number n |
7 W / 30 |
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LS /LD inductances /
ferrite mr |
» 5 mH / 70 nH / 100 |
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Primary winding resistance RP |
4 mW |
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Primary parasitic resistance RC |
» 0.5 mW |
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Transresistance VS /IB |
0.1 W |
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IPU electrode high cut-off frequency |
300 MHz |
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IPU S low cut-off frequency |
150 Hz |
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IPU D low cut-off (without the slope) |
10 kHz |
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Titanium coating end-to-end resistance |
10 W (i.e. 15 W/ð) |
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Coupling imp. ZC @ 1.5 / 3 GHz |
9 + j2 / 10 – j0.5
W |
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Beam pipe / electrode inner diameter |
40 mm / 49 mm |
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Length with bellows / body diameter |
168 mm / 130 mm |
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IPU + AHC |
Position sensitivity |
10 mm ´ D/S |
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Overall S signal bandwidth |
300 Hz – 250 MHz |
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Overall D bandwidth (without slope) |
800 Hz – 150 MHz |
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D equivalent noise @ áIBñ 3A / 0.3A |
< 5 mmRMS / < 50 mmRMS |
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S equivalent noise, low / high gain |
< 3 mARMS / < 3 mARMS |
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S signal amplifier gain low / high |
5 / 25 dB |
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D signal amplifier gain low / high |
15 / 35 dB |
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AHC CMMR @ 1 / 100 MHz |
> 60 dB / > 50 dB |
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Calibration
current pulse |
300
mA 0.1 %, 150 ms |
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(c) M.Gasior, AB/BDI/PI.
Last updated: 16/07/03. |
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