Answer Part A You have been tasked to build an instrument that will indicate if the temperature of asensor exceeds a specified value (X) by lighting up an LED.One member of your team suggests that you use a circuit based on a comparator,the other member thinks you can use a DAC. Which one do you agree with?You should briefly explain what each of these circuits are and how you cameto your conclusion.(a)(b)The thermocouple sensor you are using to measure the temperature operates inthe 1 to 1000HZ range and outputs a maximum voltage in microvolts the sameas the last four digits of your matriculation number + 1000 (i.e. if yourmatriculation number is 1234567, the output voltage is 4567 + 1000 = 5567uV) at the specified temperature X. You are concerned that this voltage is toosmall making it susceptible to noise. Therefore, you decide to amplify yoursignal by a factor of 1000. Sketch a circuit that employs an opamp to achievethis, including any necessary component values.The opamp you select has a noise characteristic of 20 nV/VHz - Calculate thesignal to noise ratio of your signal after amplification.(c)(d)You are concerned that, if the temperature you are measuring sits close to thereference temperature X for a long time, the LED light will continuously flickeron and off because of this electrical background noise. Explain why this maybe the case. You may wish to include a sketch of the input and output voltagesof the circuit you selected in (a) above.(e)The object that your thermocouple is attached to has a very high heat capacity.Therefore, you are confident that it will not change temperature any morequickly than 5Hz. Sketch a possible modification you could make to yourinstrument's circuitry to help prevent the light flickering due to backgroundnoise. Explain how this would help.

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One member of your team suggests that you use a circuit based on a comparator, the other member thinks you can use a DAC. Which one do you agree with? You should briefly explain what each of these circuits are and how you came to your conclusion. The thermocouple sensor you are using to measure the temperature operates in

One member of your team suggests that you use a circuit based on a comparator, the other member thinks you can use a DAC. Which one do you agree with? You should briefly explain what each of these circuits are and how you came to your conclusion. The thermocouple sensor you are using to measure the temperature operates in

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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