SELF-MIXING INTERFEROMETRY OPTO-ACOUSTIC TRANSDUCER AND METHOD OF OPERATING A SELF-MIXING INTERFEROMETRY

• Main Author: HOFRICHTER, Jens
• Format: Patent
• Language: English; French
• Published: 26.10.2023
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; PUBLIC ADDRESS SYSTEMS; TESTING

A self-mixing interferometry opto-acoustic transducer (1) comprises a laser (2) configured to perform two-sided emission through a first emission surface (2a) and a second emission surface (2b), and to undergo self-mixing interference in a laser cavity of the laser (2), a diaphragm (3) spaced away f...