Analysis of Errors at Optic-Electronic Autocollimation Control System with Active Compensation

Gorodetskiy, Andrey E.; Konyakhin, Igor A.; Tarasova, I. L.; Li, Renpu

doi:10.1007/978-3-319-27547-5_23

Cited by 3 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…electromechanical system structure. The facula in the aperture of the collimator is maintained with an electric regulating device based on the null method during the measurement process [14]. However, the dynamic measurement of the AC was severely affected by the mechanical adjustment.…”

Section: Introductionmentioning

confidence: 99%

Three-degree-of-freedom autocollimator with large angle-measurement range

Yan

et al. 2021

Meas. Sci. Technol.

View full text Add to dashboard Cite

Autocollimators (ACs) are primarily used for two-dimension measurement with small angle. A three-dimensional AC (3D-AC) with a large measurement range and capable of 3D angle measurement is proposed based on a modified cube corner reflector (MCCR). The MCCR structure is designed by establishing the space coordinate vector relation model between AC and the reflectors with the rotation relation of Euler space. A 3D-AC angle measurement equation for MCCR dimension angle recognition is established. Experiments demonstrate that the proposed 3D-AC model can be used for 3D measurement. The measurement range of 3D-AC is 10°, and the uncertainty values for the one-dimensional and combined angle measurements are (57.10″, 55.25″, 40.43″) and (394.16″, 455.36″, 319.57″), respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Three-degree-of-freedom autocollimator with large angle-measurement range

Yan

et al. 2021

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…However, the performance of this instrument is limited in large-scale and long-distance applications because of the autocollimator's physical characteristics and operating principle, and this limitation prevents use in many prominent areas, such as ship and aircraft manufacturing and generator and radar monitoring. 7 Because the measurement range of the photoelectric autocollimator is closely related to the measurement distance, 8 long-distance and wide-range autocollimator has become a significant research focus in recent years. [9][10][11][12][13] Chen et al 12 proposed an angle measurement method based on optical frequency domain and realized a measurement range of 21,600 arc sec.…”

Section: Introductionmentioning

confidence: 99%

Error compensation for long-distance measurements with a photoelectric autocollimator

Konyakhin

Zhang

et al. 2019

Opt. Eng.

View full text Add to dashboard Cite

Although autocollimators enable noncontact measurement, their performance is limited in large-scale and long-distance applications because of errors caused by nonideal point light sources. Therefore, we analyze this type of measurement error, including the error source and the equations used to describe the irradiance distribution of the light spot. A two-dimensional exponential approximation formula is used to express the light irradiance distribution and compensate the spot imaging errors. Experimental results show that the measurement error could be reduced by sixfold. Therefore, the proposed compensation algorithm can be applied to autocollimator measurements over distances.

show abstract

Nanoradians level high resolution autocollimation method based on array slits

Yu,

Li,

Zhang

et al. 2024

Opt. Express

View full text Add to dashboard Cite

This study developed a detailed mathematical model to elucidate array slits imaging and linear CCD acquisition. Frequency domain analysis revealed the relationship between system parameters and spot image aliasing noise. Aliasing noise was reduced through optimized array slits design and linear CCD parameter selection, improving angular measurement resolution and stability. Unlike in traditional methods, only 8 array slits were required to achieve nanoradian-level resolution and stability. The device achieved an angular measurement resolution of 0.0005 arcsec over a measurement range of ±400 arcsec. Static repeatability is 0.0003 arcsec, and stability is 0.0061 arcsec in 2 hours.

show abstract

Analysis of Errors at Optic-Electronic Autocollimation Control System with Active Compensation

Cited by 3 publications

References 4 publications

Three-degree-of-freedom autocollimator with large angle-measurement range

Three-degree-of-freedom autocollimator with large angle-measurement range

Error compensation for long-distance measurements with a photoelectric autocollimator

Nanoradians level high resolution autocollimation method based on array slits

Contact Info

Product

Resources

About