Open AccessSystem design of gyro north‐seeker calibration system
Author(s) -
Fu Yongjie
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.9092
Subject(s) - theodolite , calibration , azimuth , metrology , collimated light , computer science , function (biology) , optics , remote sensing , physics , geology , laser , evolutionary biology , biology , quantum mechanics
Aimed at the metrology support requirements of weapons found north orientation equipment, a gyro north‐seeker calibration system is designed. The system uses one plane mirror and two 1 m collimators to set up three north benchmarks at the same time, and they are assigned to the north. The accuracy of the introduced three northward azimuthal angles is as follows: ±0.20″, ±0.18″, ±0.17″. Between the three north benchmarks, the mutual check function can be realised. The system can realise the calibration of the gyro theodolite and gyro north‐seeker with auto‐collimation function and no auto‐collimation function. The composition and working principle of the system are described in detail. After examination, the north‐seeking precision accuracy of the system is 3″ ( k = 2). It satisfies the metrological calibration of the gyro theodolite and gyro north‐seeker whose north‐seeking precision is below 12″. Through practice, the system is accurate, stable and reliable.