Question

1. The thermometer will have two simultaneous outputs: Degrees Fahrenheit and Degrees Celsius.
2. A DMM will be connected to each output to produce a readout. Your group engineering group can choose the output variable in Volts, Amps or Ohms.
3. Independently of the chosen variable, the decimal point in the readout must correspond to the decimal point in the temperature. For example a readout of 33.4 at the output for degrees F, should indicate 33.4 °F. Same approach for degrees C.
4. The electronic thermometer must have a range of -100 °F to +100 °F and -100 °C to +100 °C
5. The sensor will be the LM34 Temperature-to-Voltage transducer manufactured by National Semiconductor (Note that National Semiconductor was recently acquired by Texas Instruments).
6. The Operational Amplifier that is available to your group is the µA 741.
7. Your group can use as many Op Amps as it needs. However, because increasing the number of components will reduce the economic benefit to your company, reducing the number of components in your design will result on a bonus, that in this case will be in form of extra credit.
8. You can use as many passive components as needed. Your group only has access to 5% tolerance resistors. Using the table below, if your calculations indicate a resistor of 2,345 Ω, you will have to choose to use either a 2,200Ω or a 2,400Ω resistor.

5% Standard Values Decade multiples are available from 10 Ω through 22 MΩ
10	11	12	13	15	16	18	20	22	24	27	30
33	36	39	43	47	51	56	62	68	75	82	91

1. The only voltage sources available at your workbench are fixed sources of -15V and + 15 V.
2. The conversion factors between temperature systems are as follows:

°F = (°C x 1.8) + 32
°C = (°F – 32) / 1.8

please help write a paragraph on the best way to put this togeather

Answer 1

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