Accession Number : ADD008113

Title :   Economical Fast Scan Spectrometer.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Steinbrenner,Ernest W

Report Date : 20 Jan 1981

Pagination or Media Count : 8

Abstract : A slow scan, frequency limited spectrometer having a screw mechanism for driving a rotatable grating is improved by incorporating and interlinking the following new constituent members with the screw mechanism: a cylindrical cam member with a groove and a constraint to attain a predetermined pitch, so that rapid scanning of a preselected wavelength range is achieved with the grating; a high torque, variable speed, direct current electric motor, so that the rapid scanning may be varied in speed; and, a liner potentiometer with a sliding contact, so that a remote wavelength readout of the variable rapid scanning can be obtained. Cylinder cam members of various pitches are also disclosed for use in scanning different wavelength ranges. At a low cost for improvements, the resulting spectrometer provides a variable fast scan, and is frequency selective. (Author)

Descriptors :   *Patents, *Spectrometers, *Scanning, *High rate, Frequency, Limitations, Quick reaction, Low costs, Rotation, Inventions, Economics, Gratings(Spectra), Variables, Sliding contacts, Potentiometers, Screws, Slow scan television

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE