Results 231 to 240 of about 10,061 (256)

Deformation errors of piston manometers at pressures up to 10,000 kg-wt/cm2

Measurement Techniques, 1961
1. Experimental differences in errors of piston systems with normal cylinders coincide with those calculated from M. K. Zhokhovskii's formulas up to pressures of 10,000 kg-wt/cm2. The discrepancies between the experimental and calculated results do not exceed 0.05% at maximum pressure and are due to a distortion of the regular initial shape of the ...
M. K. Zhokhovskii, V. V. Bakhvalova
openaire   +1 more source

Sensitivity to differential piston and to adaptive optics errors with the Large Binocular Telescope Interferometer

SPIE Proceedings, 2016
On-sky adaptive optics wavefront screens have been used and random optical path fluctuations - differential pistons - have been included in numerical simulations for the Large Binocular Telescope Interferometer. We characterize the Point Spread Function (PSF) and the Optical Transfer Function (OTF) by computing respectively the interferometric Strehl ...
Patru, Fabien, ESPOSITO, Simone, PUGLISI, Alfio Timothy, RICCARDI, Armando, PINNA, Enrico, ARCIDIACONO, CARMELO, Hill, John, Hinz, Philip   +7 more
openaire   +2 more sources

Phased-array performance degradation due to mirror misfigures, piston errors, jitter, and polarization errors

Journal of the Optical Society of America A, 1985
The purpose of this paper is to develop relationships between the normalized far-field peak intensity (Strehl ratio) and system perturbations, such as mirror misfigure, piston errors, jitter, and polarization errors, for phased-array transmitters. Some of these sources of degradation are unique to phased arrays, whereas others are shared in common with
openaire   +1 more source

Results of Adaptive Correction of Amospheric Piston and Tilt Errors at the Multiple Mirror Telescope

Adaptive Optics for Large Telescopes, 1992
An objective of our adaptive optics research at the 7-m Multiple Mirror Telescope (MMT) is to investigate ways of reconstructing wavefront errors accurately over large spatial scales. Correction of tilt error across and piston errors between each of the six 1.8-m diameter segments of the MMT is sufficient to recover the full diffraction-limited ...
M. Lloyd-Hart, R. Dekany, D. Wittman, D. Sandler, B. McLeod, R. Angel, D. McCarthy   +6 more
openaire   +1 more source

Diagnosing piston error from hyperspectral image with extended scene

Optics and Lasers in Engineering, 2023
Yang Li, Shengqian Wang
openaire   +1 more source

Standardizing the Permissible Mass Error in Monitoring Connecting Rods and Pistons

Russian Engineering Research, 2021
M. N. Erokhin, O. A. Leonov, N. Zh. Shkaruba, P. V. Golinitskii, U. Yu. Antonova   +4 more
openaire   +1 more source

Instrument errors of pressure setting mechanisms with noncylindrical piston

Measurement Techniques, 1985
V. A. Khavaeva, L. A. Shil'dkret
openaire   +1 more source

Analysis of Piston Error for the Golay6 Configuration

Laser & Optoelectronics Progress, 2012
沈婷婷 Shen Tingting, 吴泉英 Wu Quanying, 王福亮 Wang Fuliang, 范君柳 Fan Junliu, 钱霖 Qian Lin   +4 more
openaire   +1 more source

Wavelength-tuning multiple-surface interferometric analysis with compression of Zernike piston phase error

Measurement: Journal of the International Measurement Confederation, 2021
Young Hoon Moon, Naohiko Sugita, Yangjin Kim   +2 more
exaly  

The introduced error associated with the contact-type detection for piston surface temperature in combustion engines using coaxial thermocouples and its eliminating algorithm

International Journal of Heat and Mass Transfer, 2022
Xiaobei Cheng, Can Yang, Li Guoliang
exaly