# US 2021/0278218 A1 · Inertial measurement apparatus and mechanical device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0278218 A1 - Document ID: US20210278218A1 - Status: Published application - Kind: A1 - Application number: 17/326,500 - Filed: 2021-05-21 - Published: 2021-09-09 - Earliest claimed: 2017-08-17 - Assignees: Autel Robotics Co., Ltd. - Applicants: Autel Robotics Co., Ltd. - Inventors: Faquan CHEN - Web page: https://patentgrep.com/patent/US20210278218A1 ## CPC - G01C 21/18: Stabilised platforms, e.g. by gyroscope - G01C 19/5733: Structural details or topology - G01C 19/5783: Mountings or housings not specific to any of the devices covered by groups G01C19/5607 - G01C19/5719 - G01C 25/00: Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass (testing, calibrating or compensating compasses G01C17/38) - G01P 1/023: {for acceleration measuring devices} - G01P 15/02: by making use of inertia forces {using solid seismic masses}(G01P15/14 takes precedence) - G01P 15/14: by making use of gyroscopes (gyroscopes per se G01C19/00) - H05K 1/0271: {Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion} - H05K 1/181: associated with surface mounted components - H05K 2201/09063: Holes or slots in insulating substrate not used for electrical connections - H05K 2201/10151: Sensor - H05K 2201/10409: Screws - H05K 2201/2045: Protection against vibrations - Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - G01P: MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B5/02, A61B8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L3/00; vehicle lighting systems adapted to indicate speed B60Q1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C23/00; measuring velocity of sound G01H; measuring velocity of light G01J7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V; {measuring or recording the speed of trains B61L23/00; speed indicators incorporated in motor vehicles B60K35/00; measuring frequency or phase G01R; traffic control G08G}) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The present invention relates to an inertial measurement apparatus and a mechanical device. The inertial measurement apparatus includes a PCB board and an inertial measurement unit (IMU). The PCB board includes a PCB body portion and an isolation portion that is formed by slotting a side of the PCB board and fixedly connected to the PCB body portion. The IMU is disposed on the isolation portion. ## Claims ### Claim 1 An inertial measurement apparatus, comprising: a PCB; and an inertial measurement unit (IMU), wherein the PCB comprising: a PCB body portion; and an isolation portion that is formed by grooving on two adjacent edges of the PBC, then continuing inward towards the center of the PCB, wherein the isolation portion is fixedly connected to the PCB body portion, wherein the IMU is disposed on the isolation portion. ### Claim 2 (depends on 1) The inertial measurement apparatus according to claim 1, wherein the PCB body portion is connected to the isolation portion. ### Claim 3 (depends on 1) The inertial measurement apparatus according to claim 1, wherein the isolation portion is provided with a connection seat. ### Claim 4 (depends on 1) The inertial measurement apparatus according to claim 1, wherein the IMU being fixedly connected to the connection seat. ### Claim 5 (depends on 1) The inertial measurement apparatus according to claim 1, wherein the isolation portion is a symmetric structure. ### Claim 6 (depends on 5) The inertial measurement apparatus according to claim 5, where in the isolation portion is symmetrically disposed relative to the symmetry axis of the PCB body portion. ### Claim 7 (depends on 3) The inertial measurement apparatus according to claim 3, wherein the PCB body portion is symmetrically provided with a pair of installation seats on two sides of the connection seat. ### Claim 8 (depends on 1) The inertial measurement apparatus according to claim 1, further comprising a slotting wherein it is forming a spacing slot. ### Claim 9 (depends on 8) The inertial measurement apparatus according to claim 8, wherein the spacing slot is formed between each installation seat and the connection seat on the PCB. ### Claim 10 (depends on 8) The inertial measurement apparatus according to claim 8, wherein the spacing slot comprises a continuous spacing slot. ### Claim 11 (depends on 8) The inertial measurement apparatus according to claim 8, wherein the spacing slot comprises a discontinuous spacing slot. ### Claim 12 (depends on 8) The inertial measurement apparatus according to claim 8, wherein the two spacing slots are symmetrically formed. ### Claim 13 (depends on 8) The inertial measurement apparatus according to claim 8, wherein the spacing slot is a slot area formed by removing copper foil on the PCB or a slot area formed by cutting a part of the PCB. ### Claim 14 (depends on 4) The inertial measurement apparatus according to claim 4, wherein the PCB body portion is provided with an isolation area around each installation seat. ### Claim 15 (depends on 10) The inertial measurement apparatus according to claim 10, wherein the continuous spacing slot is rectangular. ### Claim 16 (depends on 10) The inertial measurement apparatus according to claim 10, wherein the isolation area is a remaining position after conductive copper foil of the PCB is removed. ### Claim 17 (depends on 1) The inertial measurement apparatus according to claim 1, wherein the IMU comprises a gyroscope or an accelerometer. ### Claim 18 (depends on 7) The inertial measurement apparatus according to claim 7, wherein there is a plurality of IMUs, the PCB being correspondingly provided with a plurality of connection seats, and the spacing slot being formed between any two adjacent connection seats. ### Claim 19 A mechanical device, comprising: an inertial measurement apparatus, comprising: a PCB; and an inertial measurement unit (IMU), wherein the PCB comprises a PCB body portion; and an isolation portion that is formed by grooving on two adjacent edges of the PBC, then continuing inward towards the center of the PCB, wherein the isolation portion is fixedly connected to the PCB body portion, wherein the IMU is disposed on the isolation portion. ### Claim 20 (depends on 19) The mechanical device according to claim 19, wherein the mechanical device is a gimbal, a robot, an unmanned aerial vehicle or a manned aircraft.