PHASE DIFFERENCE MEASUREMENT DEVICE, MEASUREMENT METHOD, AND ELECTRICAL EQUIPMENT COMPRISING SAME
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United States of America
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Nov 14, 2024
app pub date -
Oct 26, 2022
filing date -
Oct 26, 2022
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Abstract
The present invention measures, with high sensitivity, the phase difference between a plurality of physical fields. A phase difference measurement device (10) comprises: an electromagnetic irradiation unit (2) that repeatedly irradiates a quantum sensor element (1) with electromagnetic waves for manipulating an electron spin state of the quantum sensor element (1) which changes via interaction with a second physical field or a first physical field generated by an AC signal; and a phase difference measurement unit (3) that acquires a plurality of electron spin states after interaction with the second physical field or the first physical field, and measures the phase difference between a plurality of physical fields on the basis of the acquired plurality of electron spin states.
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