Design and test of a compound curved beam flexure with off-axis actuation for precision optical alignment

2019 ◽  
Author(s):  
Brian C. Cox
Keyword(s):  
Curved Beam ◽  
Optical Alignment

scholarly journals A high-resolution solar spectrum 2000 Å–2200 Å

1970 ◽  
Vol 36 ◽  
pp. 271-273
Author(s):  
B. B. Jones ◽  
B. C. Boland ◽  
R. Wilson ◽  
S. T. F. Engstrom
Keyword(s):  
High Resolution ◽  
Solar Spectrum ◽  
Solar Image ◽  
Roll Control ◽  
North East ◽  
The North ◽  
Alignment System ◽  
Optical Alignment ◽  
South Axis ◽  
System Operating

A high-resolution solar spectrum in the range 2000–2200 Å was obtained in a recent flight of a sunpointing Skylark rocket. This was launched at 04.21 hr UT on April 22, 1969 from Woomera and reached an apogee of 178 km. An optical alignment system operating on the main vehicle pointing system gave a net stabilisation of ±3 arc sec in the position of the solar image relative to the spectrograph slit. The slit, of length 1.0 mm, was set in the north-east quadrant parallel to and 5 arc min from the north/south axis, its lower edge being 1 arc min from the equator. The roll control of ±2.5° was provided entirely by the standard Elliott Bros. type of vehicle stabilisation.

scholarly journals Electromagnetic fields produced by moving sources in a curved beam pipe

2009 ◽  
Vol 50 (6) ◽  
pp. 063510 ◽  
Author(s):  
Shin-itiro Goto ◽  
Robin W Tucker
Keyword(s):  
Electromagnetic Fields ◽  
Curved Beam ◽  
Moving Sources ◽  
Beam Pipe

The curved beam element and its convergence rate

1989 ◽  
Vol 10 (6) ◽  
pp. 507-519 ◽  
Author(s):  
Lü He-xiang ◽  
Tang Li-min ◽  
Liu Xiu-lan
Keyword(s):  
Convergence Rate ◽  
Beam Element ◽  
Curved Beam ◽  
Curved Beam Element
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