01.05.2013 Views

Lecture 10: Bolometers - Leiden Observatory

Lecture 10: Bolometers - Leiden Observatory

Lecture 10: Bolometers - Leiden Observatory

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

SE =<br />

G = (T )HP<br />

Detection of Light: <strong>Lecture</strong> <strong>10</strong><br />

Different timescales<br />

...back to the electrical responsivity:<br />

(T )V<br />

G (T )PI<br />

=<br />

(T )V<br />

(T )HP (T )P =<br />

On the other hand, if α(T) is known G = α(T)HP permits the determination of the thermal conductance G from<br />

the load curve.<br />

⇥E =<br />

V (Z R)<br />

2RP<br />

...and the electrical time constant:<br />

C<br />

G (T )P<br />

= V<br />

2P<br />

T = C<br />

G<br />

= C<br />

G G<br />

H<br />

✓<br />

Z<br />

R 1<br />

◆<br />

= ⇥T<br />

1 1<br />

H<br />

V<br />

P (H 1) =<br />

= 1<br />

2I<br />

=<br />

✓<br />

Z<br />

R 1<br />

◆<br />

⇥T<br />

1 Z R<br />

Z+R<br />

P<br />

= ⇥T<br />

V<br />

⇣ Z+R<br />

Z R<br />

⌘<br />

Z + R<br />

2R<br />

1<br />

=

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!