Light monitoring refers to the systematic observation and measurement of light levels in various environments to ensure appropriate illumination and protect sensitive materials. This process involves the use of specialized instruments that track light intensity and other parameters, including ultraviolet (UV) radiation.
Various tools are used to measure light intensity and quality, each designed for specific applications. Here are some common types:
Lux Meter: Measures illuminance in lux (lx), which quantifies the amount of light per square meter. It's commonly used in workplaces to ensure adequate lighting levels.
Photometer: A device that measures light intensity. It can evaluate both visible and non-visible light. Photometers can be further categorized into incident and reflective types, depending on whether they measure direct light falling on a surface or the light reflected from it.
PAR Meter: Specifically designed to measure Photosynthetically Active Radiation (PAR), which is crucial for plant growth. It measures light in the 400-700 nm wavelength range.
Quantum Sensor: Similar to PAR meters, these measure the light available for photosynthesis, providing data on light quality in indoor and outdoor environments.
Foot candle Meter: Used to measure the illuminance, or light intensity, on a surface in foot-candles (fc). One foot-candle is defined as the amount of light that falls on a one-square-foot area from a uniform light source of one lumen, one foot away.
The LightScout Quantum (PAR)/DLI Meter provides scientifically accurate PAR light readings under any light source, including LED. Set out for 24 hours to compute and display DLI.