37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
Project.............................. Daisy first pitot shot with 80% He
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Run number........................... x2s3668
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Date.................................6/10/2017
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Blame................................ Yu Liu, Chris James,Tim Cullen
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Reservoir............................... 6.0 MPa (gauge)
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Driver...................................He to 772mbar, flushed once with He to 50mbar
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Primary diaphragm.................... 2.5 mm cold rolled steel, scored diaphragm
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Shock tube........................... 2000 Pa 20%H2/80%He in bottle filled 28/09/17 (filled on 100 torr gauge), flushed twice to 2000 Pa with pure He
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Secondary diaphragm.................. Al Multiex diaphragm (approx 14 microm thick)
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Acceleration tube.................... 0.5 Pa lab Air (filled on 1 torr gauge) (or as low as we can get)
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Trig.................................. photodiode into X2 microsec delay box (Tr value set at 40)
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EXPERIMENT
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Second Daisy pitot shot. Repeat of the first shot, with Daisy filling everything this time
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Photodiode trigger
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Separate function generator to trigger mini spectro:
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delay 0us
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freq 50Hz
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Amp1: 10Vpp
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Spectrometer:
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f=50mm lens at approximately 1.2m, aimed at pt5. Unknown lens material.
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Exposure: 50us
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Window: Perspex
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HS:
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Nikkon AF micro 200mm
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f/5.6
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250kHz
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50 pre trigger frames
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1/2 frame exposure
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1x gain
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Using Andover corporation H-a filter 656FSX10-50
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