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Physics, 13.07.2019 02:40 edith47

Determine the best temperature measurement system with the following specifications [range] monitor a heating chamber that has an internal temperature of-40 cat the beginning of the test procedure, and determine ifthe heating chamber ever exceeds 140°c sensitivity] considerthat forthe detectability of temperature changes required to be at least 10mv per degree change across the entire range. linearityl consider the linearity ofthe sensor. [response time] the measurement system should be able to detect changes in the air temperature as quickly as possible we won't specify a timing, because the heat exchange properties of air come into effect. all else being equal, a faster responding sensor will be better [cost] thethermistor costs on the order of $1, whereas the rtd and thermocouple cost on the order of $10. sensor selection: in a real-world measurement scenario, any obtainable sensor that fit within the budget could be a consideration. to constrain the problem for this case, your choices will be limited to the following three sensors: a 100 ω pt 100 rtd with a wheatstone bridge, with svolts excitation, the rtd is active, and the * remaining the three bridge resistors are set have a null/zero output at 0 c a 10 kq thermistor with acommon voltage divider, with svoltsexcitation, thatplacesthe thermistor in series with a 10 kqresistor .an-type thermocouple with direct voltage measurement a) (s points) which of the sensors have an appropriate range? what would you say about the 3 sensor types, when considering range? make sure you support your answer by listing the range of all three. b) (5 points) which of the sensors have an appropriate sensitivity? what would you say about the 3 sensor types, when considering sensitivity? make sure you support your answer by listing the sensitivity of all three in units of mvc alow them to meet the minimum sensitivty requirements? table. determine voltage with and without amplification level of self-heating in μw for each hint: p-12r c) (5 points) what factor would you need to signal condition (amplify) the sensors above to d) (10 points) detemne the voltage output across the temperature range of interest and create a c) (5 points) assuming the sensors are being used as dscussed above, what is the expected points) briefly discuss how you woud calibrate the sensor for both static and dynamic calibration. g (5 points) which sensors will be easier or harder to use, with respect to nearity? will this affect your firal decision? h) (5 points) which sensor would you select for the measurement scenano descnbed? why?

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