Title:
SENSOR, HELMET, AND MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2022/137744
Kind Code:
A1
Abstract:
A sensor (10) comprises a control unit (20), a light emitting element (30), photodetectors (41, 42), a proximity assessment unit (53), and a measurement unit (54). The control unit (20) provides a transmission period and a non-transmission period and generates an intermittent transmission signal. The light emitting element (30) radiates laser light based on the transmission signal toward the object under measurement. The photodetectors (41, 42) continuously receive light from the outside that includes reflected light resulting from the reflection of the laser light by an object under measurement and output reception signals. The proximity assessment unit (53) uses the intensity of the reception signals during the transmission period and the intensity of the reception signals during the non-transmission period to assess the proximity of the object under measurement. The measurement unit (54) uses the reception signals to measure a prescribed physical quantity of the object under measurement.
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Inventors:
OGUSHI NAOKI (JP)
Application Number:
PCT/JP2021/037814
Publication Date:
June 30, 2022
Filing Date:
October 13, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01B11/00; A61B5/026; G01F1/00; G01F1/66; G01V8/10
Foreign References:
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Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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