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Precision Measurements Start at the Probe Tip
Probes are vital to oscilloscope measurements. There has to be some kind of electrical connection, a probe of some sort between the signal to be measured and the oscilloscope’s input channel.
In addition to being vital to oscilloscope measurements, probes are also critical to measurement quality. Connecting a probe to a circuit can affect the operation of the circuit, and an oscilloscope can only display and measure the signal that the probe delivers to the oscilloscope input.
Thus, it is imperative that the probe have minimum impact on the probed circuit and that it maintain adequate signal fidelity for the desired measurements. In essence, the probe is the first link in the oscilloscope measurement chain. And the strength of this measurement chain relies as much on the probe as the oscilloscope. Weaken that first link with an inadequate probe or poor probing methods, and the entire chain is weakened.
In this presentation, you’ll learn what contributes to the strengths and weaknesses of probes and how to select the right probe for your application.
Sven de Coster, C.N. Rood
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