Optoelectronic Sensor for Solar Installations

Description

Maximum precise tracking of the sun‘s diurnal position by solar collectors ensures a high harvest ratio and thus good solar collector etficiency. Two-axis tracking is effected by adjustable d. c. motors which are controlled by signals emitted from the sensor.

Application and Characteristics

measurement of the optical deviation and readjustment within < 0.02° (0.3 mrad)

• sensitivity (adjustable) >100 W/m² insolation
• response time > 0.1 sec
• acceptance angle + 0.75%

The sensor for tracking as described above can be used tor:

• parabolic or spherical concentrators (parabolic disk) according to th. solar farm principle
• heliostats or heliostat fields for solar tower installations (required accuracy 0.02°-0,1°)
• test facilities for solar high-temperature generation with concentration ratlos above 1000
• comparison of the target / actual position in computer-cqntrolld solar installations
• and generally for measuring the angular deviation from a remote Iight source and tor tracking mobile light sources (e. g. navigation).