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Assuming the target reflects 10% of the incident power, the working frequency of an ultrasound range finder system with transmitter power 1.5kW and receiver sensitivity 0.15mW operating in medium of attenuation coefficient a=0.25DB MHz'm 1 and maximum range of 90m is approximately:

Assuming the target reflects 10% of the incident power, the working frequency of an ultrasound range finder system with transmitter power 1.5kW and receiver sensitivity 0.15mW operating in medium of attenuation coefficient a=0.25DB MHz'm 1 and maximum range of 90m is approximately:

Introductory Circuit Analysis (13th Edition)
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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Assuming the target reflects 10% of the incident power, the working frequency of an ultrasound range finder system with transmitter power 1.5kW and receiver sensitivity 0.15mW operating in medium of attenuation coefficient a=0.25DB MHz 'm 1 and maximum range of 90m is approximately: Select one: a. 1.33MHZ Б. 1.53МНZ С. 1.90МНZ d. 1.17MHZ е. 1.83МHZ
Transcribed Image Text:Assuming the target reflects 10% of the incident power, the working frequency of an ultrasound range finder system with transmitter power 1.5kW and receiver sensitivity 0.15mW operating in medium of attenuation coefficient a=0.25DB MHz 'm 1 and maximum range of 90m is approximately: Select one: a. 1.33MHZ Б. 1.53МНZ С. 1.90МНZ d. 1.17MHZ е. 1.83МHZ
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