A balance is calibrated in an environment at a temperature of 25C for the input range...

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A balance is calibrated in an environment at a temperature of 25°C for the input range of 0-1000 grams, as tabulated below: Input: Weight 595 735 805 (gram) Output: Angular deflection () 115 25 185 55 325 82 405 105 485 140 160 189 905 220 239 995 260 (a) Plot the input/output characteristics and use linear regression to calculate the sensitivity and the zero drift of the (12 marks) (3 marks) balance. (b) Suggest a method to reduce the zero drift. (c) After eliminating the zero drift, the balance is now used for measurement under an ambient temperature of 40°C. Suppose the sensitivity drift coefficient is +1.2%/gram/°C, what will be the output (º) for an input of 500grams? (7 marks) A balance is calibrated in an environment at a temperature of 25°C for the input range of 0-1000 grams, as tabulated below: Input: Weight 595 735 805 (gram) Output: Angular deflection () 115 25 185 55 325 82 405 105 485 140 160 189 905 220 239 995 260 (a) Plot the input/output characteristics and use linear regression to calculate the sensitivity and the zero drift of the (12 marks) (3 marks) balance. (b) Suggest a method to reduce the zero drift. (c) After eliminating the zero drift, the balance is now used for measurement under an ambient temperature of 40°C. Suppose the sensitivity drift coefficient is +1.2%/gram/°C, what will be the output (º) for an input of 500grams? (7 marks) A balance is calibrated in an environment at a temperature of 25°C for the input range of 0-1000 grams, as tabulated below: Input: Weight 595 735 805 (gram) Output: Angular deflection () 115 25 185 55 325 82 405 105 485 140 160 189 905 220 239 995 260 (a) Plot the input/output characteristics and use linear regression to calculate the sensitivity and the zero drift of the (12 marks) (3 marks) balance. (b) Suggest a method to reduce the zero drift. (c) After eliminating the zero drift, the balance is now used for measurement under an ambient temperature of 40°C. Suppose the sensitivity drift coefficient is +1.2%/gram/°C, what will be the output (º) for an input of 500grams? (7 marks)

Answer rating: 100% (QA)

Input Weight in grams 115 185 325 405 485 595 735 805 905 995Output Angular deflection in degrees 25 ... View the full answer