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Figure A2.1. Relative response to varying core diameter within MS2C sensor.
In Figure A2.1, d = core diameter and D = MS2C aperture + 8mm. The figure shows the variation
in the calibration value of c
vol
for varying core diameter d for a long core (length l greater than
2D). The measured value will be equal to c
vol
when d/D = 0.66. For other ratios of d/D the relative
response will approximate to c
REL
= 3.45 * (d/D)
3
.
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
POOR RESOLUTION
OVER THIS RANGE
LIMIT OF C36
LIMIT OF C162
0.40.2 0.6 0.8 1.0
d/D
K
REL
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