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ME 5448
Pressure and Temperature Measurement
ME 5448 – EFD Pressure and Temperature‐ 1
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Pressure and Temperature Measurement
A. Introduction
ME 5448 – EFD Pressure and Temperature‐ 2
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Pressure and Temperature Measurement
B. Pressure Measurement
ME 5448 – EFD Pressure and Temperature‐ 3
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Pressure and Temperature Measurement
B. Pressure Measurement
1. Spatial and temporal resolution
pi
L
V
pmd t
, E
ME 5448 – EFD Pressure and Temperature‐ 4
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Pressure and Temperature Measurement
B. Pressure Measurement
1. Spatial and temporal resolution
ME 5448 – EFD Pressure and Temperature‐ 5
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Pressure and Temperature Measurement2
3
B. Pressure Measurement
1. Spatial and temporal resolution
1
5
104 (a) - port 1
H
300SNR = 20
102
R a t i o
1/
100
200
)
100
A m p l i t u d
-100
0 p ( P a
0 1 2 310
-2
0 0.05 0.1 0.15 0.2-300
-200
ME 5448 – EFD Pressure and Temperature‐ 6
frequency (Hz)time(sec)
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Pressure and Temperature Measurement
B. Pressure Measurement
2. What pressure is measured?
ME 5448 – EFD Pressure and Temperature‐ 7
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Pressure and Temperature Measurement
B. Pressure Measurement
3. Special pressure measurements
b Acoustic measurement
ME 5448 – EFD Pressure and Temperature‐ 8
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Pressure and Temperature Measurement
C. Temperature Measurement
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Pressure and Temperature Measurement
C. Temperature Measurement
1. Spatial and temporal resolution
ME 5448 – EFD Pressure and Temperature‐ 10
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Pressure and Temperature Measurement
C. Temperature Measurement
2. What temperature is measured?
ME 5448 – EFD Pressure and Temperature‐ 11
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Pressure and Temperature Measurement
D. Developments in Temperature and Pressure Measurement
1. Global surface measurements
ME 5448 – EFD Pressure and Temperature‐ 12
