Probing Principles
Maximum Allowable Puls e Amplitude
To de termine the maximum allowable pulse
amplitude do the following:
1. Measure the pulse w idth at the 50% points.
2. Divide the Ampere-second (or
Ampere-microsecond) specification
for the range setting of the TCP0030 probe
by the pulse width.
The quotient is the maximum allowable
pulse amplitude; the peak amplitude of the
measured pulse must be less than this
value.
For exa mple, the TCP0030 probe has a
maximum Ampere-second product of 500 A-ms
in the 30 A range setting. If a pulse measured
with the probe has a width of 11 ms, the
maximum a llowable peak current would be
500 A-ms divided by 11 ms, or 45.5 A .
38 TCP0030 Current Probe Instruction Manual
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