Two electrical oscillatorsare used in a heterodynemetal detector to detectburied metal objects (seeFig. P21.41). The detectoruses two identical electricaloscillators in the form of LCcircuits having resonant frequenciesof 725 kHz. Whenthe signals from the twooscillating circuits are combined,the beat frequency iszero because each has thesame resonant frequency.However, when the coil ofone circuit encounters aburied metal object, the inductance of this circuit increases by1.000%, while that of the second is unchanged. Determine thebeat frequency that would be detected in this situation.
Two electrical oscillatorsare used in a heterodynemetal detector to detectburied metal objects (seeFig. P21.41). The detectoruses two identical electricaloscillators in the form of LCcircuits having resonant frequenciesof 725 kHz. Whenthe signals from the twooscillating circuits are combined,the beat frequency iszero because each has thesame resonant frequency.However, when the coil ofone circuit encounters aburied metal object, the inductance of this circuit increases by1.000%, while that of the second is unchanged. Determine thebeat frequency that would be detected in this situation.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Two electrical oscillators
are used in a heterodyne
metal detector to detect
buried metal objects (see
Fig. P21.41). The detector
uses two identical electrical
oscillators in the form of LC
circuits having resonant frequencies
of 725 kHz. When
the signals from the two
oscillating circuits are combined,
the beat frequency is
zero because each has the
same resonant frequency.
However, when the coil of
one circuit encounters a
buried metal object, the inductance of this circuit increases by
1.000%, while that of the second is unchanged. Determine the
beat frequency that would be detected in this situation.
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