Tektronix TDS5000B Series, Онлайн руководство пользователя

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Probe Calibration Control Window: Probe
Calibration
To Use
Click a Channel button at the top of the control window to select the vertical input channel for the
attached probe. Connect the probe tip to the appropriate signal and ground connections of the
probe compensation terminals. Click Clear Probecal to clear the old calibration values. Then click
Calibrate Probe to begin the calibration procedure.
Behavior
The instrument lets you compensate the probe, based on the channel to which it is connected, to
improve the gain and offset accuracy of the probe. When you perform the probe calibration on the
selected channel with the probe attached, you can optimize the instrument to make accurate
measurements using that channel and probe. The probe calibration makes significant performance
improvements when performed with active probes or older passive probes.
You should perform a probe calibration any time you want to ensure that the measurements you
take are made with the most accuracy possible. You should also perform the probe calibration if
you have changed probes since the last time a probe calibration was performed.
If you are compensating a passive probe, you must first compensate the low frequency response
of the probe. Refer to the Probe Compensation Procedure on page 355 for more information.
Some types of probes can be gain compensated, some can be offset compensated, and some can be
compensated for both. If the probe has a TekProbe interface, the instrument can determine the type
of compensation needed and will display the appropriate instructions when you perform the probe
calibration procedure. Some probes cannot be compensated; for information on these probes, refer
to probe calibration restrictions on page 95.