hw_94

hw_94 - EE 4770 Homework 1 Due: 2 February 1994 Problem 1:...

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EE 4770 Homework 1 Due: 2 February 1994 Problem 1: An integrated temperature sensor converts temperature to current such that i = T 10 K mA , where T is the temperature, K is the unit of temperature 1 ,Ke lv in ,and i is the current flowing through the sensor. Using this sensor design a circuit that will convert temperature in the range - 20 Cto40 C linearly to 0 to 10 V . Show the following: The process variable to electrical quantity transfer function, H. The transfer function needed from the conditioning circuit, C. A schematic of the conditioning circuit, showing the sensor and the value of all resistors and voltage sources. Hint: Use the summing amplifier with one resistor replaced by the temperature sensor. EE 4770 Homework 2 Due: 4 March 1994 Problem 1: Two options for measuring temperature using an RTD are being considered. In both options, the resistance of the RTD will be converted into a number which will be read by a com- puter 2 . This number can be further processed in cyberspace to obtain the measured temperature. Let T denote the temperature to be measured and let D denote the contents of an area of the computer memory. Then D = H ( T )= T/
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hw_94 - EE 4770 Homework 1 Due: 2 February 1994 Problem 1:...

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