INSTRUMENT TYPES AND PERFORMANCE CHARACTERISTICS A load cell is calibrated in an environment at a temperature of 21°C and has the following deflection/load characteristic: Load (kg) Deflection (mm) 0 50 100 150 200 0.0 1.0 2.0 3.0 When used in an environment at 35°C its 4.0

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11:48
B
Instrume...cteristics
INSTRUMENT TYPES AND PERFORMANCE
Deflection
(mm)
A load cell is calibrated in an environment at a
temperature of 21°C and has the following
deflection/load characteristic:
Load (kg)
CHARACTERISTICS
Deflection
(mm)
0
50
|||
0.0 1.0 2.0
When used in an environment at 35°C, its
characteristic changes to the following:
Load (kg)
0
100
021.3
150
... 40%
3.0
Solution
O
50 100 150 200
200
4.0
(a) Determine the sensitivity at 21°C and 35°C.
(b) Calculate the total zero drift and sensitivity drift
at 35°C.
(c) Hence determine the zero drift and sensitivity
drift coefficients (in units of
um/°C and (um per kg)/(°C)).
2.4 3.5 4.6
go
Transcribed Image Text:11:48 B Instrume...cteristics INSTRUMENT TYPES AND PERFORMANCE Deflection (mm) A load cell is calibrated in an environment at a temperature of 21°C and has the following deflection/load characteristic: Load (kg) CHARACTERISTICS Deflection (mm) 0 50 ||| 0.0 1.0 2.0 When used in an environment at 35°C, its characteristic changes to the following: Load (kg) 0 100 021.3 150 ... 40% 3.0 Solution O 50 100 150 200 200 4.0 (a) Determine the sensitivity at 21°C and 35°C. (b) Calculate the total zero drift and sensitivity drift at 35°C. (c) Hence determine the zero drift and sensitivity drift coefficients (in units of um/°C and (um per kg)/(°C)). 2.4 3.5 4.6 go
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