Predictive maintenance method for a cooled detection module, and related module

摘要

The invention relates to a predictive maintenance method for a cooled detection module, comprising: a detector (1) comprising a matrix consisting of pixels that are sensitive to light signals; a cryostat (2) containing the detector (1); and a cooling machine (3), said method being characterized in that it comprises a step according to which a processing board (4) of the module, which is electrically connected to the detector (1), to the cryostat (2), and to the cooling machine (3) measures, stores, and processes at least: one motor current, i.e. a supply current of the machine (3); one motor voltage, i.e. a supply voltage of the machine (3); and a number of defective pixels of the detector (1). The invention further relates to a module for implementing the invention.

主权项

1. Predictive maintenance method for a cooled detection module, comprising:
a detector comprising pixels that are sensitive to light signals; a cryostat, containing the detector; and a cooling machine,the method comprising a step whereby a processing board of the module, which is electrically connected to the detector, to the cryostat and to the cooling machine, measures, stores and processes at least
one motor current, including a machine supply current; one motor voltage, including a machine supply voltage; and a number of defective pixels of the detector; wherein the method comprises using said motor current, said motor voltage and said number of defective pixels of the detector for determining a fault in the cooled detection module and informing a user of said fault in said cooled detection module if so determined, and wherein the board is for measuring, storing and processing at least a number NMM of start-ups of the module, including a quantification of module starts; and a number CCR of mode changes, including transitions of the module from a cooling mode to a regulation mode, and an operating time Tps of the module, including the total time in regulation mode and/or in cooling mode of the module, from commissioning.