An algorithm for circular test and improved optical configuration by two-dimensional (2D) laser heterodyne interferometer

2016 ◽  
Vol 87 (9) ◽  
pp. 095103 ◽  
Author(s):  
Shanzhi Tang ◽  
Shengrui Yu ◽  
Qingfu Han ◽  
Ming Li ◽  
Zhao Wang
Keyword(s):  
Two Dimensional ◽  
Heterodyne Interferometer ◽  
Circular Test ◽  
Laser Heterodyne ◽  
Optical Configuration

A Two-Dimensional Surface Profile Imaging Technique Based on Heterodyne Interferometer

2005 ◽  
Vol 295-296 ◽  
pp. 477-482
Author(s):  
K.W. Wang ◽  
Z.J. Cai ◽  
Li Jiang Zeng
Keyword(s):  
High Speed ◽  
Imaging Technique ◽  
Surface Profile ◽  
Ccd Camera ◽  
Measurement Range ◽  
Interference Signal ◽  
Two Dimensional ◽  
Step Method ◽  
Heterodyne Interferometer ◽  
Dimensional Surface

A two-dimensional surface profile imaging technique based on heterodyne interferometer is proposed. A piezo translator vibrated grating is used to generate a heterodyne signal. A high speed CCD camera is used to extract the interference signal using a five step method. The uncertainty in the displacement measurement is approximately 0.035 µm within a measurement range of 1.7 µm, confirming the two dimensional heterodyne interferometer is valid for measuring the surface profile. The method is also available for low coherence heterodyne interferometer due to the optical frequency shifts caused by the vibration of grating independent on the wavelength.

scholarly journals Laser heterodyne interferometer for simultaneous measuring displacement and angle based on the Faraday effect

2014 ◽  
Vol 22 (21) ◽  
pp. 25587 ◽  
Author(s):  
Enzheng Zhang ◽  
Qun Hao ◽  
Benyong Chen ◽  
Liping Yan ◽  
Yanna Liu
Keyword(s):  
Faraday Effect ◽  
Heterodyne Interferometer ◽  
Laser Heterodyne ◽  
Simultaneous Measuring

Laser heterodyne interferometer studies of atomic phenomena in plasmas

1968 ◽  
Vol 4 (5) ◽  
pp. 359-359 ◽  
Author(s):  
R. Cotman ◽  
W. Johnson ◽  
A. Larsen
Keyword(s):  
Heterodyne Interferometer ◽  
Laser Heterodyne

1112 Electron Density Measurements of Shock Wave Plasmas by CO_2 Laser Heterodyne Interferometer

2005 ◽  
Vol 2005.80 (0) ◽  
pp. _11-23_-_11-24_
Author(s):  
Yoshikazu ASAMI ◽  
Takeyoshi FUJITA ◽  
Sumio NAHARA ◽  
Shigeyoshi HISADA
Keyword(s):  
Shock Wave ◽  
Electron Density ◽  
Density Measurements ◽  
Heterodyne Interferometer ◽  
Laser Heterodyne

Measurements of electron density of shocked plasma by CO_2 laser heterodyne interferometer

2002 ◽  
Vol 2002.77 (0) ◽  
pp. _10-21_-_10-22_
Author(s):  
Naokazu TAKAZAWA ◽  
Takeyoshi FUJITA ◽  
Sumio NAKAHARA ◽  
Shigeyoshi HISADA
Keyword(s):  
Electron Density ◽  
Heterodyne Interferometer ◽  
Laser Heterodyne

Refractive index determination in fuel cells using high-resolution laser heterodyne interferometer

2011 ◽  
Vol 36 (20) ◽  
pp. 13255-13265 ◽  
Author(s):  
Saeed Olyaee ◽  
Mohammad Shams Esfand Abadi ◽  
Samaneh Hamedi ◽  
Fatemeh Finizadeh
Keyword(s):  
Refractive Index ◽  
Fuel Cells ◽  
High Resolution ◽  
Heterodyne Interferometer ◽  
Laser Heterodyne

" High Bandwith Laser Heterodyne Interferometer To Measure Transient Mechanical Displacements "

1988 ◽  
Author(s):  
Jean-Loup Lesne ◽  
Alain Le Brun ◽  
Daniel Royer ◽  
Eugene Dieulesaint
Keyword(s):  
Heterodyne Interferometer ◽  
Laser Heterodyne
Sign in / Sign up

Export Citation Format

Share Document