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| Subject: | Re: how best to connect a hydrophone to a laptop? |
| From: | Anders Heerfordt <> |
| Date: | Mon, 05 Jan 2004 15:33:00 -0800 |
I want an inexpensive way to connect a hydrophone to a PC such as to the RCA mic jack of a laptop or a PCMCIA < Btw, by connecting a hydrophone, which typically has an impedance corresponding to 3 nanoFarad to a microphone preamplifier, which typically has an input impedance of 10 kiloOhm, you get a low frequency cutoff frequency at 1/(2 * PI * 3 nF * 10 kOhm) = 5 kHz. So you end up with a frequencyresponse, which is flat from 5 kHz to 20 kHz, which is not quite what you desired. mvh Anders Heerfordt CSC [EMAIL PROTECTED] |
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