Laser Interferometric On-Line Measurement of Paper Surface Roughness

1990 ◽  
pp. 341-341
Author(s):  
Emoke Lorincz ◽  
Peter Richter
Keyword(s):  
Surface Roughness ◽  
Paper Surface ◽  
Line Measurement ◽  
On Line ◽  
Laser Interferometric

Development of a laser-scattering-based probe for on-line measurement of surface roughness

2003 ◽  
Vol 42 (7) ◽  
pp. 1318 ◽  
Author(s):  
Shihua Wang ◽  
Yunhui Tian ◽  
Cho Jui Tay ◽  
Chenggen Quan
Keyword(s):  
Surface Roughness ◽  
Laser Scattering ◽  
Line Measurement ◽  
On Line

scholarly journals Analysis of Light Reflection from Cold-rolled Steel Sheets and Its Application to On-line Measurement of Surface Roughness

1984 ◽  
Vol 70 (9) ◽  
pp. 1095-1102 ◽  
Author(s):  
Yuichiro ASANO ◽  
Motoji SHIOZUMI ◽  
Kunio KURITA ◽  
Tadashi YABE ◽  
Susumu MORIYA
Keyword(s):  
Surface Roughness ◽  
Light Reflection ◽  
Rolled Steel ◽  
Cold Rolled Steel ◽  
Steel Sheets ◽  
Line Measurement ◽  
On Line ◽  
Cold Rolled

scholarly journals Experimental Study on the Performance of Hydraulic Vibration Assisted Broaching (HVAB) Based on Piezoelectric Sensors

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2417
Author(s):  
Zhen Meng ◽  
Jing Ni ◽  
Yu Shi ◽  
Chuan-Yu Wu ◽  
Xiang-Qi Liu
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Cutting Force ◽  
Surface Quality ◽  
Piezoelectric Sensors ◽  
Vibration Frequencies ◽  
Line Measurement ◽  
On Line ◽  
Flank Face

In order to improve the keyway broaching process and verify the feasibility of vibration-assisted broaching process, an experimental study on a novel hydraulic vibration assisted broaching (HVAB) system with double-valve electro-hydraulic exciter (DVEHE) is proposed in this paper. The performances of HVAB at different excitation frequencies were compared from three aspects: (a) the cutting force under the different vibration frequencies, (b) the surface roughness of the workpiece, and (c) the flank face wear of the tool. For precision on-line measurement of larger broaching forces, four piezoelectric sensors were fixed on the broaching machine. The experimental results show that HVAB can effectively improve the performance of the broaching process, approximately reduce the broaching force by as much as 9.7% compared to conventional broaching (CB) and improve the surface quality of workpiece. Some explanations are offered to support the observations.

Thickness Measurement in the AEM by Macintosh-Based Analysis of Two-Beam Convergent Beam Patterns

1990 ◽  
Vol 48 (2) ◽  
pp. 504-505
Author(s):  
John F. Mansfield ◽  
Douglas C. Crawford
Keyword(s):  
Electron Microscope ◽  
Video Camera ◽  
Thickness Measurement ◽  
Specimen Thickness ◽  
Crystalline Materials ◽  
Beam Dynamic ◽  
Line Measurement ◽  
On Line ◽  
Image Position ◽  
Convergent Beam

A method has been developed that allows on-line measurement of the thickness of crystalline materials in the analytical electron microscope. Two-beam convergent beam electron diffraction (CBED) patterns are digitized from a JEOL 2000FX electron microscope into an Apple Macintosh II microcomputer via a Gatan #673 CCD Video Camera and an Imaging Systems Technology Video 1000 frame-capture board. It is necessary to know the lattice parameters of the sample since measurements are made of the spacing of the diffraction discs in order to calibrate the pattern. The sample thickness is calculated from measurements of the spacings of the fringes that are seen in the diffraction discs. This technique was pioneered by Kelly et al, who used the two-beam dynamic theory of MacGillavry relate the deviation parameter (Si) of the ith fringe from the exact Bragg condition to the specimen thickness (t) with the equation:Where ξg, is the extinction distance for that reflection and ni is an integer.

Control Strategies for a Highly Loaded Biological Ammonia Elimination Process

1993 ◽  
Vol 28 (11-12) ◽  
pp. 531-538 ◽  
Author(s):  
B. Teichgräber
Keyword(s):  
Closed Loop ◽  
Control Strategies ◽  
Level Control ◽  
Sludge Dewatering ◽  
Loop Control ◽  
Reject Water ◽  
Line Measurement ◽  
Control Pattern ◽  
On Line ◽  
Treatment Facilities

A nitrification/denitrification process was applied to reject water treatment from sludge dewatering at Bottrop central sludge treatment facilities of the Emschergenossenschaft. On-line monitoring of influent and effluent turbidity, closed loop control of DO and pH, and on-line monitoring of nitrogen compounds were combined to a three level control pattern. Though on-line measurement of substrate and product showed substantial response time it could be used to operate nitrification/denitrification within process boundaries.

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