What is a differential probe?

What is a differential probe?

A differential probe is used to look at signals that are referenced to each other instead of earth ground and to look at small signals in the presence of large DC offsets or other common mode signals such as power line noise.

What is the difference between active and passive probes?

Passive probes do not require external probe power. Active probes do require external probe power for the active components in the probe, such as transistors and amplifiers, and provide higher bandwidth performance than passive probes.

What is the difference between 1X and 10X probe?

1X, 10X, and 100X refer to attenuation ratios; a 1X probe does not attenuate the signal, a 10X probe reduces signal amplitudes by 10X, and a 100X probe reduces signal amplitudes by 100X. Loading is inversely proportional to attenuation. A typical 1X probe will load your circuit with 1 Megohm and 100pf or more.

How do oscilloscope probes work?

An oscilloscope probe is used to connect the device under test (DUT) to an oscilloscope. It acts as a transmission line, passing your signal from the source to the oscilloscope. When you connect an oscilloscope probe to the signal in your circuit and an oscilloscope, the oscilloscope probe becomes part of your circuit.

How does a probe work?

A probe is effectively an elaborate switch, designed to trigger on contact with a component surface, providing accurate, repeatable geometric data. Obtaining and interrogating this data throughout the manufacturing process can help to ensure components remain within conformance limits.

What is a passive probe?

Passive probes are the standard probe provided with most oscilloscopes. Teledyne LeCroy passive probes feature an attenuation sense pin which tells the oscilloscope to scale the waveforms automatically requiring no user input.

What does 10X probe mean?

A 10X oscilloscope refers to a probe with an integrated attenuator that delivers an attenuation of 10. This allows the circuits’ impedance to be enhanced by a factor of 10. While the 10X probe is attenuating the signal, it can also reduce the signal entering the oscilloscope.

HOW DO probes work?

A current probe generates a voltage proportional to a current in the circuit being measured; as the proportionality constant is known, instruments that respond to voltage can be calibrated to indicate current. Current probes can be used both by measuring instruments and oscilloscopes.

What is the function of the probe?

A probe is a single-stranded sequence of DNA or RNA used to search for its complementary sequence in a sample genome.