Micro Clip; Undamped Accessories - Agilent Technologies 1156A User Manual

Micro Clip

The Micro Clip is used when easy to connect, hands-free probing of a circuit is
required. The Micro Clip can be used on the signal lead, the ground lead, or both.
Although this configuration is damped, it is not optimally damped and should not
be used to measure waveforms with rise times less than 1 ns
Figure 2-2
Close-up view of micrco clip end
Probing using the micro clip

Undamped Accessories

Probes are often used with accessories that do not contain a damping resistor
located at the point being probed. As an example, the accessory might be a lead
wire provided with a probe or hand made by the user of a probe. All high
bandwidth probes suffer from excessive overshoot and ringing when used with
undamped accessories.
In order to illustrate the problems that arise due to the use of undamped
accessories, the response of an 1158A with an undamped 5cm signal lead wire
is shown on the following pages. The responses shown are very similar to the
response of ANY high bandwidth probe that is using an undamped 5cm signal
lead wire.
Socket-end 5 cm ground lead
Operating the Probe
Socket-end 5 cm resistive signal lead
Micro clip
Micro Clip
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