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)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Question

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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