Lecture 10: Bolometers - Leiden Observatory
Lecture 10: Bolometers - Leiden Observatory
Lecture 10: Bolometers - Leiden Observatory
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Detection of Light: <strong>Lecture</strong> <strong>10</strong><br />
The Bolometer Readout Circuit<br />
Johnson noise is NOT the<br />
limiting factor for bolometers<br />
so we don’t worry about setting<br />
high R<br />
We can use this circuit to measure the bolometer resistance R.<br />
Vbias<br />
RL<br />
R Vout<br />
We assume so that<br />
the current through the bolometer is<br />
limited by RL<br />
RL >> R