A solar irradiance sensor, also known as a solar radiation sensor or solar pyranometer, is a device used to measure the solar radiation flux density (in watts per square meter) from the sun.
What is a solar irradiance sensor?
Sensor Design: A typical solar irradiance sensor consists of a radiation receiver surface, which is usually a blackened thermopile plate. The black coating helps to maximize the absorption of incoming solar radiation. The sensor is designed to be sensitive to the total solar radiation, including direct and diffuse components. 2.
How do irradiance sensors work?
Irradiance sensors are devices that measure the amount of sunlight that falls on a specific surface in a given time period. These sensors are widely used in photovoltaic (PV) plants to measure the amount of solar radiation that is available for conversion into electricity.
What is a solar radiation sensor?
Solar radiation sensors are also known as pyranometers. A type of actinometer, these devices are used for measuring broadband solar irradiance as well as solar radiation flux density, which means that they measure the power of the light and heat from the sun. When placed on a flat surface, pyranometers can be used for identifying solar radiation.
The sensor can measure solar irradiance between 0-2000W/m² with a resolution of 1W/m². The sensor works on RS485 protocol (4-20mA,0-5V, 0-10V). Hence we will use MAX485 Module to request the output data. Using the RS485 Module, the Pyranometer Sensor data is processed by Arduino in readable format.
Because the short circuit current is proportional to the radiation, a silicon solar cell can be used as an irradiance sensor. Our sensors are made of a monocrystalline solar cell connected to a shunt. The shunt works next to the low circuit.
What is solar irradiance?
Total solar radiation, either direct beam or diffuse, incident on a horizontal surface is described as global shortwave radiation, or shortwave irradiance, and is indicated in watts per square meter. Wichien Tepsuttinun / Shutterstock Pyranometers are solar irradiance sensors that gauge global shortwave radiation.