
Digital storage oscilloscopes
person in the same area. Yet another alternative is signal voltage
isolation. This is covered in the next chapter.
Calibrators
A common accessory used with analog oscilloscopes is the
oscilloscope calibrator. This is not frequently employed by the
oscilloscope end-user, but is found in the test equipment lab of
any large company and in the workshops of independent
instrument repair and recalibration organisations. Essential for use
with analog oscilloscopes (especially in the days when they used
valves), calibrators are also used with digital storage
oscilloscopes.