Title:
CALIBRATION CHECKING SYSTEM AND METHOD OF DIRECTIONAL SENSOR
Document Type and Number:
WIPO Patent Application WO/2021/068797
Kind Code:
A1
Abstract:
Disclosed are a calibration checking system and method of a directional sensor. The system comprises: a first three-axis Helmholtz coil (1), a heating calibration rotary table (3), an industrial personal computer (11), a sensor signal acquisition system (12) and a directional sensor (15), wherein the first three-axis Helmholtz coil (1) is used for, under the control of the industrial personal computer (11), generating an additional magnetic field after counteracting an environment static magnetic field and by means of adjustment, the magnetic induction intensity of the additional magnetic field is equal to the geomagnetic induction intensity, and the direction of the magnetic induction intensity is the same as the direction of the gravity field; the heating calibration rotary table (3) is used for adjusting, under the additional magnetic field, a temperature and a three-axis angle, and for acquiring, under different postures, first acquisition data of the directional sensor (15); and the sensor signal acquisition system (12) is used for, under the control of the industrial personal computer (11), acquiring and calibrating the directional sensor (15) according to the first acquisition data. The calibration system and method simplify a calibration process, and improve the calibration efficiency of a directional sensor.
Inventors:
MENG ZHUORAN (CN)
ZHU JUN (CN)
WANG FEI (CN)
CHENG SHUYUN (CN)
WU YAO (CN)
JIA SANG (CN)
GUO YING (CN)
CUI HONGSHENG (CN)
DIE YONG (CN)
LU YE (CN)
CHEN PENG (CN)
LI TONG (CN)
WANG JUN (CN)
ZHU JUN (CN)
WANG FEI (CN)
CHENG SHUYUN (CN)
WU YAO (CN)
JIA SANG (CN)
GUO YING (CN)
CUI HONGSHENG (CN)
DIE YONG (CN)
LU YE (CN)
CHEN PENG (CN)
LI TONG (CN)
WANG JUN (CN)
Application Number:
PCT/CN2020/118738
Publication Date:
April 15, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
CHINA NAT PETROLEUM CORP (CN)
CHINA PETROLEUM LOGGING CO LTD (CN)
CHINA PETROLEUM LOGGING CO LTD (CN)
International Classes:
E21B47/00; G01D18/00
Foreign References:
| CN211201936U | 2020-08-07 | |||
| CN110849403A | 2020-02-28 | |||
| CN103089242A | 2013-05-08 | |||
| CN202031580U | 2011-11-09 | |||
| CN102853760A | 2013-01-02 | |||
| CN105698792A | 2016-06-22 | |||
| US20150168176A1 | 2015-06-18 | |||
| US20150145625A1 | 2015-05-28 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF: