Operation
2
Keysight 478A Operating and Service Manual
29
431 Power Meter Detection
Under normal operation, the total power supplied to heat thermistor pair “D” (see
– RF signal
– 10 kHz bias
– Heat from the same environment
As “D” and “C” are matched thermally, the total amounts of heat applied to
reduce their series resistance equally must be equal.
432 Power Detection
Under normal operation, the total power applied to heat thermistor pair “D” (see
– RF signal
– Heat from the environment
The total power supplied to heat thermistor “C” consists of:
– DC bias
– Heat from the same environment
As “D” and “C” are matched thermally, the total amounts of heat applied to
reduce their series resistance equally must be equal.
Содержание 478A
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Страница 45: ...Keysight 478A Thermistor Mount Operating and Service Manual 45 A Appendix A Introduction 46 Manual Changes 47...