Abstract

A system for vibration control of a cryocooler that cools an imager. The system includes a vibration sensor that is physically affixed to the cryocooler. The vibration sensor senses a physical vibration of the cryocooler and to generates a vibration signal therefrom. The system also includes cryocooler drive electronics operatively coupled to the vibration sensor and the cryocooler. The cryocooler drive electronics output a drive waveform that drives the cryocooler so as to reduce the vibration impact of the cryocooler. The harmonic content of the cryocooler drive waveform is controlled by the cryocooler drive electronics based on the vibration signal.

IPC Classes  ?

• F25B 9/14 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
• B64G 1/38 - Guiding or controlling apparatus, e.g. for attitude control damping of oscillations, e.g. nutation dampers
• F25B 25/00 - Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups
• G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
• F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
• F16F 7/10 - Vibration-dampersShock-absorbers using inertia effect
• F25B 49/00 - Arrangement or mounting of control or safety devices
• G03B 15/00 - Special procedures for taking photographsApparatus therefor
• G03B 17/56 - Accessories
• G03B 17/55 - Details of cameras or camera bodiesAccessories therefor with provision for heating or cooling, e.g. in aircraft