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Two Kinds of Digital Oscilloscope and user Tips:

by NandRepair Team

Digital oscilloscope is a mutifunction machine come with various software and electronic hardware modules that work together to capture, process, display and store data. digital oscilloscope is commonly utilized to analyze the performance of equipment that produces an electric signal.

As for an repair workers or technicians or engineers for testing, measuring, and examining in a wide range of settings, which includes motor vehicle testing, telecoms, along with other engineering and electronic applications.

Tips on using an Digital oscilloscope

a) Probe the input to the test point on the oscilloscope to assure that a channel and probe are working. Normally every set comes with this test point with fixed voltage and frequency.

b) Set the options of a channel to "DC" coupling, with automatic triggering. Increase the channel's volts per division until a line appears. Set the sweep time per division near the speed of the signal, and then adjust the volts per division until the event appears at a useful size.

c) The bandwidth of the test probes should equal or exceed the bandwidth of the oscilloscope's input amplifiers.

d) The capacitance of the wire in the test probe can cause an oscilloscope to inaccurately display high speed signals. Use the test output that produces a square wave to adjust the probe by ensuring that the corners of the square wave appear square, exhibiting no overshoot or undershoot.

e) The ground connection of the oscilloscope should be attached to the ground of the circuit under test. Most test leads for oscilloscopes have the ground clip built into their end. To accurately probe high speed signals, the ground lead must be kept as short as possible; at frequencies above 100 MHz, the flying ground lead should be removed and replaced with a small ground pin which slips over the ground ring at the tip of the probe.

f) Most oscilloscope has connection to mains earth of which the test lead ground is also attached to mains earth. If the circuit under test is also referenced to mains earth, then attaching the probe ground to any signal will effectively act like a short circuit to earth causing the earth circuit breaker to trip. This is solved by using an isolating transformer or special probe that has this isolation.

g) AC coupling blocks any DC in the signal.

h) DC coupling must be used when measuring a DC voltage.

i) Trigger the correct channel and set the trigger delay to zero. After that adjust the trigger level until the desired event triggers.

Here nandrepair introduce two kinds of Digital Oscilloscope

1. Rigol DS2072A Digital Oscilloscope

RIGOL DS2072A digital oscilloscope is ideal for production tests, field service, research, design and all other applications involving analog/digital circuit tests and troubleshooting, as well as education and training.

2. Rigol DS1102E Digital Oscilloscope

DS1000E series are the high-performance, economic digital oscilloscopes. They are widely used in the areas of education, training, production line, research and development

100% brand new RIGOL Digital Oscilloscope DS1102E 100MHz 1GSa/S can be used:

1. Design and Debug
2. Manufacturing
3. Education & Training
4. Service & Maintenance

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