Knowledge

Connect a 50pf capacitor in parallel to the BNC terminal, and solder the two wires to form a twisted pair.

Does the oscilloscope probe ground have to be connected to the circuit board ground? For the experiment today, let's look at the oscillogram of the 50V AC signal.

Reading the picture correctly is the first step in maintenance work. "Reading" is to fully understand the internal circuit of the oscilloscope according to the electrical schematic diagram

Synchronization trigger source, divided into + trigger and-trigger, internal synchronization, external synchronization.

​The signal generator is used to generate a sine signal (low frequency) with a frequency of 20 Hz to 200 kHz. In addition to having a voltage output, some also have a power output.

​A signal generator is a device that can provide electrical signals of various frequencies, waveforms, and output levels.

​Precision lcr tester is generally used to test inductance and capacitance. The measurement steps are as follows:

An oscilloscope is a very basic instrument for electrical engineers, but many people are unable to effectively use the trigger function.

The LCR digital bridge needs to be preheated after powering on, that is, plug in the power plug, turn on the power switch, and preheat for 10 minutes.

The digital grounding resistance tester is specially designed and manufactured for on-site measurement of grounding resistance.

Choose the correct test conditions. The device parameter values given by the component manufacturers represent the performance that can be achieved under the specified measurement conditions and the a

The resistance tester can be applied to the winding resistance of transformers, inductors, motors, deflection coils, high-precision high, medium and low value resistors.