Albedometers
Albedo is the fraction of sunlight that is diffusely reflected by a body and is measured on a scale from 0 (corresponding to a black body that absorbs all incident radiation) to 1 (corresponding to a body that reflects all incident radiation).
An Albedometer is a device that measures the reflectivity of a surface. The instrument emits a beam of light towards a surface at a specific angle (usually 45 degrees). The light that is reflected back is then measured by a sensor that calculates the albedo of the surface based on the ratio of reflected to incident light.
Albedometers can be used to measure the albedo of a wide range of surfaces, including soil, vegetation, water bodies, and even the Earth’s atmosphere. They are particularly useful for studying the reflectivity of different surfaces in the context of climate science, where it becomes very important to understand how much solar radiation is absorbed or reflected by different surfaces.
Product Line
SRA30-M2-D1 albedometer
This is a Digital Class A (secondary standard) albedometer with heating and tilt sensor. It is one of the most accurate albedometers available, and heated for the best data availability.
Features:
- Heating and ventilation included, complying with IEC 61724-1 Class A PV system requirements
- Digital outputs: easy implementation & servicing
- Best-in-class temperature response < ± 0.4 % (-30 to +50 °C), best “zero offset a” and best calibration uncertainty
- Test certificates for temperature- and directional response included as required by ISO 9060
- Re-calibration registers fully accessible to users
- Modular; can be calibrated as separate pyranometers
SRA20-D2 albedometer
This is a Digital secondary standard albedometer that is composed of two SR20-D2 secondary standard pyranometers and one AMF02 albedometer mounting kit that includes one glare screen, one mounting fixture with rod, mounting hardware and tools. It is one of the most accurate digital secondary standard albedometers available. SRA20-D2 complies with the latest ISO and WMO standards.
Features:
- digital outputs: easy implementation & servicing
- best-in-class temperature response <± 0.4 % (-30 to +50 °C), best “zero offset a” and best calibration uncertainty
- test certificates for temperature- and directional response included as required by ISO 9060
- modular; can be calibrated as separate pyranometers
SRA01 albedometer
SRA01 albedometer is composed of two identical second class pyranometers with thermopile sensors, the upfacing one measuring global solar radiation, the downfacing one measuring reflected solar radiation. SRA01 complies with the latest ISO and WMO standards.
Features:
- Measurand: global solar radiation and reflected solar
- radiation
- Optional measurand: albedo or solar reflectance
- Optional measurand: net solar radiation
- Included sensors 2 x identical ISO 9060 spectrally flat Class C pyranometer
- Calibration uncertainty < 2.4 % (k = 2)