A Portable High-Speed Photometer - Part One - Photometer Controller
P. C. Chen · Publications of the Astronomical Society of the Pacific · 1983
We have developed a digital microprocessor system for high-speed occultation photometry. The principal features are: timekeeping to accuracy of milliseconds, real-time data display, ruggedness, lightweight (1.8 kg), and low cost (250). The observational data can be stored on an ordinary cassette recorder or transferred to a host computer for reduction.