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1
2
Tests Description
- Use “trigger hammer” to capture physical taps
- trigger DAQ by completing a circuit on contact
- Tap ~5 times on each microphone
- Tap on several locations around microphones
- Checked amplifier gain
MICE Cavity Microphone Tests MTA Weekly RF Meeting Peter Lane - - PowerPoint PPT Presentation
MICE Cavity Microphone Tests MTA Weekly RF Meeting Peter Lane - - PowerPoint PPT Presentation
MICE Cavity Microphone Tests MTA Weekly RF Meeting Peter Lane Illinois Institute of Technology 1 Tests Description Use trigger hammer to capture physical taps trigger DAQ by completing a circuit on contact Tap ~5 times on each
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3
DW3, DW4, & DW6
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4
Upstream Window Mics with Downstream Center Mic
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Record #11: DW1 & DW6
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Initial Conclusions
- 22/24 microphones functioning normally
- 1 microphone easily separated from cavity
- not one of the abnormal function microphones
- will leave in cavity as a control for EMI
- DW6 sensitive enough to saturate when any
- ther mic receives even a moderate signal
- Not surprisingly, the cavity reverberates for
several seconds
- Amplifier gain was not saved when changed to
max from min (operator error)
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7
What is the relevance to actual RF signals?
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8
RF Hammer on DW1 and DW6
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9
Spark on DW 1 and DW6
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10
Spark Minus RF Hammer
- n DW1 & DW6
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11
RF Signal Conclusions
- Spikes concurrent with RF pulse do not behave
like impulses
- No recoil
- No reverberation
- DW6, though very sensitive, does not register
- We may still be able to see reverberations with