Femto
Capacitance Meter: This meter measures into the low
femtofarad area. Measuring in the femto area allows the smallest
capacitors to be measured with precision. Such capacitors are
commonly used to compensate for input and stray capacitance in
amplifiers.
Measure open circuited cables using a multimeter: 09/26/2002
EDN - Design Ideas / You can use a multimeter with
capacitance-measurement capability to measure the length of wire
or cable to an open circuit. The capacitance of a pair of wires
(or a wire to a shield) is directly proportional to the length
of the wire. If you know th.
Solve low frequency cutoff problems in capacitive sensors:
11/28/2002 EDN - Design Ideas / One of the first
problems a capacitive-sensor analog designer must face is the
low-frequency cutoff. Theoretically, you must fulfill just one
simple requirement: a sufficiently large input resistance of the
preamplifier's first stage. In practice, however, many problems
lurk behind the seemingly straightforward design rules..
