7. 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) 50 100 150 200 0.0 1.0 2.0 3.0 4.0 When used in an environment at 35°C, its characteristic changes to the following: Load (kg) Deflection (mm) 50 100 150 200 0.2 1.3 2.4 3.5 4.6 (a) Determine the sensitivity at 21 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).

7. 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) 50 100 150 200 0.0 1.0 2.0 3.0 4.0 When used in an environment at 35°C, its characteristic changes to the following: Load (kg) Deflection (mm) 50 100 150 200 0.2 1.3 2.4 3.5 4.6 (a) Determine the sensitivity at 21 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).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

7. 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)
50
100
150
200
0.0
1.0
2.0
3.0
4.0
When used in an environment at 35°C, its characteristic changes to the following:
Load (kg)
Deflection (mm)
50
100
150
200
0.2
1.3
2.4
3.5
4.6
(a) Determine the sensitivity at 21 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).

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