A novel instrument for high precision angle measurement of optical axes

Ruimin, Liu; Guo, Xiqing; Yu, Jin; Qin, Yingying; Bian, Qiang; Li, Weiyan

doi:10.1016/j.ijleo.2012.03.019

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Autocollimators are widely used to conduct precision measurements of various mechanical parameters, e.g. tilt angles, straightness and rotary indexing [1][2][3]. Using a conventional autocollimator, [4][5][6] angle measurements are performed with manual observations that unavoidably result in operation errors.…”

Section: Introductionmentioning

confidence: 99%

Automatic Calibration System for Precision Angle Measurement Devices

Wang

Shyu

Manske

et al. 2014

AUSMT

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An optomechatronic module is proposed to achieve automatic and efficient calibration of a compact autocollimators for high precision angle measurement. Conventional autocollimators have several disadvantages including large size and high cost, thus efforts over the past decade have focused on producing compact autocollimators. To satisfy the needs of practical applications, the measuring performance of a compact autocollimator must be determined, raising the need for a reliable and efficient calibration module.Integration of the photoelectronic sensor, mechanism design and self-developed software produces a process for efficient calibration. The employed sensor is a dual axis position sensitive detector. The system includes an angular sensing module and an angular control mechanism. and signal processing is achieved through a self-developed measuring program. Comparison with a commercial autocollimator indicates that the proposed system can serve as a reference standard to calibrate other compact autocollimators such as DVD pick-ups. The corresponding measurement curve of a calibrated compact autocollimators can then be automatically determined by the measurement program. Experimental results verify that the standard deviation of the DVD pick-up yaw angle is less than 1.5 arcsec and that of the pitch angle is less than 4.5 arcsec (2σ).With the proposed automatic calibration system, the measuring characteristics of a calibrated compact autocollimator can be determined in a few minutes thus producing low-cost, high-precision angle measurements without commercial autocollimators.

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Section: Introductionmentioning

confidence: 99%

Automatic Calibration System for Precision Angle Measurement Devices

Wang

Shyu

Manske

et al. 2014

AUSMT

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show abstract

“…The drawback is due to failing to establish an accurate and operable common measurement reference for each measured object in a large space. In order to realize the delivery of measurement reference, Liu et al [11] proposed a novel instrument for high precision angle measurement. An electronic theodolite was placed on a two-dimensional linear displacement platform, and the electronic theodolite was moved to different positions to measure different objects.…”

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confidence: 99%

Large-scale spatial angle measurement and the pointing error analysis

Xiao¹,

Chen²,

Ma³

et al. 2016

Optoelectron. Lett.

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A large-scale spatial angle measurement method is proposed based on inertial reference. Common measurement reference is established in inertial space, and the spatial vector coordinates of each measured axis in inertial space are measured by using autocollimation tracking and inertial measurement technology. According to the spatial coordinates of each test vector axis, the measurement of large-scale spatial angle is easily realized. The pointing error of tracking device based on the two mirrors in the measurement system is studied, and the influence of different installation errors to the pointing error is analyzed. This research can lay a foundation for error allocation, calibration and compensation for the measurement system.

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Dynamic research of multi-body mechanical systems of angle measurement

Kilikevičius

Kasparaitis

2017

Int. J. Precis. Eng. Manuf.

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A novel instrument for high precision angle measurement of optical axes

Cited by 4 publications

References 7 publications

Automatic Calibration System for Precision Angle Measurement Devices

Automatic Calibration System for Precision Angle Measurement Devices

Large-scale spatial angle measurement and the pointing error analysis

Dynamic research of multi-body mechanical systems of angle measurement

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