Tektronix TCP0150, Instruction Manual

Page: 58 / 102

Probing Principles
Maximum Allowable Pulse Amplitude
To determine the maximum allowable pulse
amplitude, do the following:
1. Measure the pulse width at the 50% points.
2. Divide the Ampere-second (or
Ampere-microsecond) speci
fi cation
for the range setting of the TCP0150 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 example, the TCP0150 probe has
a maximum Ampere-second product of
15000 A-
μ s in the 150 A range setting. If a
pulse measured with the probe has a width of
40
μ s, the maximum allowable peak current
would be 15000 A- μ s divided by 40 μ s, or
375 A.
42 TCP0150 Current Probe Instruction Manual