Circuits to detect low voltage level signals

Jul 17, 2009 24 Replies

Stuff like that couldn't easily be placed in a small plastic hand-held electronics enclosure case. These types of instruments need to be bolted to the lab floor.

If anyone has the time and web skills to set up a decent site, I'll pay for it.

John

Now, the question is: Will Bill and Eeyore contribute.

You can\'t have a sense of humor, if you have no sense!

soldered

shielded

a

tube.

Unless i misunderstood most of my thermo, the brass tube is going to dominate the thermal conductivity of the resistor and "package". BTW what is the package of the resistor?

I once worked as a Z-80 programmer on the control board of a box where everything that could possibly be done wrong was. For example, they had an X-Y carriage and a servo loop with 16-bit DACS, using AC Synchronous Motors!!!!! AC synchronous motors in an alleged servo loop is insane! They also had components that were moved with stepper motors; the guy before me had no ides how to drive a stepper motor - I spent a few days stdying them, and when I fixed the control loop and demo'd it, people went, "Ooh! Aaaah!". But the guy had no provision for a zero stop, like an optical interruptor - they just banged it into the mechanical backstop for long enough to assume they were in zero position.

Unfortunately, before I (or anyone else) had a chance to do all the design revisions, my contract ended and I found myself out twisting in the wind. )-;

Cheers! Rich

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