In the laboratory, he scans the traces on the circuit board as if strumming guitar strings, and the waveforms jumping on the oscilloscope are the electronic symphonies he composes. As the most ‘charged’ hardware engineer in the center, Engineer Zhang has firmly soldered his scientific faith with five years of unwavering research spirit, building the … Read more
Click the blue text to follow us!An effortful public accountBeautiful people are followingOverview of GCC Certification in the USA GCC Certification (General Certificate of Conformity) is a compliance document for general use products. For products subject to consumer product safety rules, a written General Certificate of Conformity (GCC) must be issued based on testing or … Read more
For engineers engaged in the design of microcontroller application systems (both hardware and software), mastering certain EMC testing techniques is essential. About EMC EMC:Electromagnetic Compatibility, refers to the ability of a device or system to operate as required in its electromagnetic environment without causing intolerable electromagnetic interference to any devices in that environment.It includes two … Read more
Today, we will conduct a practical test to see how fast the communication speed is when implementing Modbus TCP communication with different brands of PLCs or boards. Testing Interface We used our self-developed communication library for testing. Different communication libraries may have slight differences, and the test results are for reference only and do not … Read more
1. Visual Inspection In simple terms: A Hall effect current sensor is a “magnetic-electric” converter that can linearly convert the strength of a magnetic field into a voltage signal. Check the sensor casing for burn marks, cracks, deformation, or pin corrosion and other obvious physical damage. Overheating often causes discoloration or bulging of the casing. … Read more
On the fast highway, the dashboard is the lifeline for drivers to communicate with their vehicles. A misreading of the fuel gauge could leave a driver stranded on the highway at night, and a delayed speed display could lead to a fatal accident. Testing automotive instruments is the technical line of defense that safeguards safety … Read more
There are mainly two types of remote controls for TVs or TV boxes at home: one is infrared remote controls, and the other is Bluetooth remote controls. If a Bluetooth remote control is damaged, discarding it and purchasing a new one can be significantly more expensive than an infrared remote control. This article shares methods … Read more
QA& Question: How to fix incorrect readings on a multimeter When using a multimeter to read voltage, you may notice that the voltage readings fluctuate wildly or are incorrect on a known voltage source. This is often a sign that the internal fuse has blown. At this point, you need to test the fuse for … Read more
Content Overview The frequency converter is an electrical device. For safe operation, ensure that the frequency converter is powered off, and wait for more than 5 minutes after disconnection. Additionally, the input power lines R, S, T and output lines U, V, W must be removed before proceeding! ▲ Frequency Converter Main Circuit Diagram Module … Read more
1. Quick Methods to Determine Motor Condition: 1. Use a multimeter to measure the DC resistance of the motor’s three-phase windings. The closer the results of the three measurements are, the better. A resistance difference within 2% is acceptable. If the difference exceeds 10%, the winding with the lower resistance may have an inter-turn short … Read more