Photoacoustic measuring apparatus
AssigneeHme Square Inc.
InventorsYoonho Khang, Duhyoun Yoon, Jinsoo Park, Jinwoong Lee
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Abstract
Provided is a photoacoustic measuring apparatus. The apparatus comprises an ultrasonic sensor configured to detect a photoacoustic wave generated in a photoacoustic wave generating area in the measurement target in a predetermined frequency band, wherein with a light-incident position and a beam width of the laser light, a center of the photoacoustic wave generating area, and a position of the ultrasonic sensor given according to a predetermined geometry, the frequency band of the ultrasonic sensor may be configured to include a frequency corresponding to a wavelength equal to twice the beam width at the point of light incidence.
Claims17
A photoacoustic measuring apparatus comprising:
- a light source configured to emit laser of a predetermined wavelength to a measurement target;
- a photoacoustic detector configured to detect a photoacoustic signal generated from the measurement target receiving the laser light emitted from the light source;
- a contact sensor including a first bioimpedance electrode and a second bioimpedance electrode, the contact sensor being configured to acquire a bioimpedance value when the electrodes are placed in contact with the measurement target and an operator during use of the photoacoustic measuring apparatus;
- and
- a controller configured to decide whether the operator and the measurement target are the same individual, based on the bioimpedance value measured between the first bioimpedance electrode and the second bioimpedance electrode.
Dependencies are inferred from the claim text.