Q1: i. Define and explain the following terms with appropriate examples and graphs. a. Sensitivity drift b. Zero drift c. Precision d. Accuracy ii. A load cell is calibrated in an environment at a temperature of 21C and has the following deflection/load characteristics. Load (kg) 0 50 Deflection mm 0.0. 1.0 When used in an environment at 35C, its characteristics changes to the following: Load (kg) 0 Deflection (mm) 0.2 50 100 1.3 2.0 150 3.0 100 2.4 150 3.5 200 4.0 a. Determine the sensitivity at 21C.. b. Calculate the total zero drift and sensitivity drift at 35C, c. Hence determine the zero drift and sensitivity drift coefficients. 200 4.6

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter11: Heat Transfer By Radiation
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Problem 11.12P
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Q1: i. Define and explain the following terms with appropriate examples and graphs.
a. Sensitivity drift
c. Precision
ii. A load cell is calibrated in an environment at a temperature of 21C and has
the following deflection/load characteristics.
b. Zero drift
d. Accuracy
Load (kg)
50
100
150
200
Deflection mm
0.0.
1.0
2.0
3.0
4.0
When used in an environment at 35C, its characteristics changes to the following:
100
200
Load (kg)
Deflection (mm) 0.2
50
150
1.3
2.4
3.5
4.6
a. Determine the sensitivity at 21C..
b. Calculate the total zero drift and sensitivity drift at 35C,
c. Hence determine the zero drift and sensitivity drift coefficients.
Transcribed Image Text:Q1: i. Define and explain the following terms with appropriate examples and graphs. a. Sensitivity drift c. Precision ii. A load cell is calibrated in an environment at a temperature of 21C and has the following deflection/load characteristics. b. Zero drift d. Accuracy Load (kg) 50 100 150 200 Deflection mm 0.0. 1.0 2.0 3.0 4.0 When used in an environment at 35C, its characteristics changes to the following: 100 200 Load (kg) Deflection (mm) 0.2 50 150 1.3 2.4 3.5 4.6 a. Determine the sensitivity at 21C.. b. Calculate the total zero drift and sensitivity drift at 35C, c. Hence determine the zero drift and sensitivity drift coefficients.
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