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Models PH – Power Heads
5.3
PULSED RF OPERATION DIODE HEADS
Figure 5-3 shows the valid operating region for the diode heads. As with thermal heads, the bottom end
measurement is limited by noise, getting worse as the duty cycle decreases. At the top end, the limitation is
on pulse power because even a very short pulse will charge up the detecting capacitors. The burnout level for
diode heads is the same for the pulsed and CW waveforms. The minimum pulse repetition frequency is 10
KHz.
Figure 5-3. Pulsed Accuracy for Diode Heads
Rev C
17
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