RESONANT OPTO-MECHANICAL ACCELEROMETER FOR USE IN NAVIGATION GRADE ENVIRONMENTS

• Main Authors: ZOTOV SERGEY ALEXANDROVICH, KARP JASON HARRIS, LIN YIZHEN, KASTEN ANSAS MATTHIAS, CHALLENER WILLIAM ALBERT, KNOBLOCH AARON JAY
• Format: Patent
• Language: English; Korean
• Published: 05.09.2018
• Subjects: GYROSCOPIC INSTRUMENTS; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The present invention relates to a resonant opto-mechanical accelerometer used in a navigation class environment, capable of measuring acceleration of a plurality of axes. According to the present invention, the accelerometer (102) comprises a controller (108); a light source (110) operably coupled to the controller (108); and a bifurcated waveguide (112) coupled to the light source (110) and receiving light outputted from the light source (110). The bifurcated waveguide (112) comprises first and second waveguide portions (114, 116). Moreover, the accelerometer (102) comprises a first resonator (126) operably coupled to the controller (108) and receiving the light from the first waveguide portion (114); and a second resonator (128) operably coupled to the controller (108) and receiving the light from the second waveguide portion (116). The first resonator (126) includes a first verification mass (210) and the second resonator (128) includes a second verification mass (212). 가속기(102)는 제어기(108), 제어기(108)에 작동식으로 결합된 광원(110), 및 광원(110)에 결합되고 광원(110)에 의해 출력된 광을 수신하도록 구성된 분기된 도파관(112)을 포함한다. 분기된 도파관(112)은 제1 도파관 부분(114) 및 제2 도파관 부분(116)을 포함한다. 가속도계(102)는 또한 제어기(108)에 작동식으로 결합되고 제1 도파관 부분(114)으로부터 광을 수신하도록 구성된 제1 공진기(126), 및 제어기(108)에 작동식으로 결합되고 제2 도파관 부분(116)으로부터 광을 수신하도록 구성된 제2 공진기(128)를 포함한다. 제1 공진기(126)는 제1 검증 질량(210)을 포함하고, 제2 공진기(128)는 제2 검증 질량(212)을 포함한다.