A thermal imaging pixel, including a variable resistor array; and a pixel readout circuit configured to read electrical signals corresponding to a composite resistance of the variable resistor array, wherein the variable resistor array includes a plurality of variable resistor subarrays electrically connected in series, wherein each variable resistor subarray of the plurality of variable resistor subarrays includes a plurality of variable resistor cells electrically connected in parallel, and wherein each variable resistor cell of the plurality of variable resistor cells has a resistance which changes according to temperature.

Techniques for facilitating vacuum health detection for imaging systems and methods are provided. In one example, an imaging device includes a detector configured to generate a first reference signal. The imaging device further includes a buffer circuit configured to store a value of the first reference signal. The imaging device further includes a processing circuit coupled to the buffer circuit. The processing circuit is configured to determine a first predetermined value based on a first temperature associated with the detector. The processing circuit is further configured to determine vacuum integrity associated with the detector based at least on the value of the first reference signal and the first predetermined value. Related methods and systems are also provided.

Techniques for facilitating vacuum health detection for imaging systems and methods are provided. In one example, an imaging device includes a detector configured to generate a first reference signal. The imaging device further includes a buffer circuit configured to store a value of the first reference signal. The imaging device further includes a processing circuit coupled to the buffer circuit. The processing circuit is configured to determine a first predetermined value based on a first temperature associated with the detector. The processing circuit is further configured to determine vacuum integrity associated with the detector based at least on the value of the first reference signal and the first predetermined value. Related methods and systems are also provided.