Explore the instrumentation behind precise light measurement .
This reference details how photodetectors, lamp power circuits, and mechanical hardware are designed and used in photometry at the National Bureau of Standards. Written for a technical audience, it explains both the equipment and the experiments that test lamp stability and orientation effects.
This edition presents practical descriptions of photodetector amplifiers, stable lamp power circuitry, and the hardware that supports and aligns lamps for accurate measurements. It also covers three photometric experiments, including stability tests for flux lamps and intensity lamps, and a study of how orientation affects relative luminous intensity.
- How to design and use photodetector amplifiers for reliable current-to-voltage conversion
- Stable lamp power circuits and their role in consistent photometric measurements
- Mechanical setups to position and align lamps with minimal stray light
- Experiments that examine lamp stability and the dependence of output on orientation
Ideal for readers of photometry, radiometry, and optical measurement methods who want hands-on detail about instrumentation and experimental design.