I.R.SPECTROPHOTOMETRIC DATA LOGGING and PROCESSING COMPUTER,
Installed at C.A.S.A
IR PhotoMultiplier maintained in dry ice was interfaced to a
discriminator and x charge amplifier,
digitized and data stored in memory. The dispersion was through
diffraction grating operated by a stepper motor with correction of
backlash errors. The equipment was built into the 48 inch telescope at
Nizamiah Observatory (Japal Rangapur).
Software- language Assembly and BASIC for control and user interface.
Scanning of the star under study over a range of wavelengths and
repeating the same 'n' times to average out air turbulence and cloud
affects .Display the buildup of the spectrum on a CRO for study.
Computation of the magnitude at various specified wavelengths.
BACK TO MY R & D PAGE