Schelt Technology - Model ST DNI-01 -ST DNI-01 Pyrheliometer

The standard direct radiation sensor is used to measure the radiation perpendicular to the sun’s surface and the diffuse radiation around the sun. It has the function of automatically tracking the sun and monitoring the direct radiation of the sun. The sensor is mainly composed of a light cylinder and an automatic tracking device. The inner part of the optical cylinder is composed of seven light bars and inner cylinders: quartz glass, a thermopile, and a desiccant cylinder. The seven-light barrier is used to reduce the internal reflection, form the open angle of the instrument, and limit the turbulence of the air inside the instrument.