Astrovid - Peltier Cooled Thermal Management System For StellaCam II, StellaCam3, & WAT120N Upgrade

Regulated CCD Cooling

A significant advantage provided by the upgrade is precise regulation of the CCD sensor’s temperature. Changes in ambient
temperature will not affect the temperature of the CCD because the CCD is maintained at a constant temperature. This regulation is
accomplished by incorporating temperature sensors which feedback the CCD sensor temperature along with the camera’s
enclosure temperature to a microcomputer based control unit (MCU). By monitoring these temperature readings, the MCU is able to
maintain the CCD temperature by precisely controlling power being applied to a set of Peltier modules which are thermally bonded
to the CCD. The Peltier modules act as a heat pump to draw heat from the CCD sensor and exhaust it through the camera’s
enclosure, which also has a heat sink and fan attached to it. The enclosure temperature is monitored by the MCU such that if it
gets too warm, the MCU will turn on the cooling fan to help remove the heat. The cooling fan will be turned back off if the
enclosure temperature drops to an adequate level determined by the MCU.

For Upgrades we only need You to Send Back Your Camera Head and Power Supply