(1) Metrology can be classified into the following three categories based on its field: 1. Legal Metrology Legal metrology is carried out to ensure public safety, national economic and social development. It is enforced by the government or authorized entities according to legal, technical, and administrative needs. This includes explicit regulations and specific requirements for … Read more
Recently, I read some posts about RTC calibration and found that many people have doubts. Coincidentally, I also implemented RTC calibration in STM32 recently. Here are some insights. While this may seem trivial to experienced users, it can be beneficial for beginners. One of the core implementations of RTC calibration is the function void BKP_SetRTCCalibrationValue … Read more
// The NIST Multi-TRL calibration technology in the United States implements precise calibration tests of on-chip scattering parameters (S parameters), but this calibration technology has not yet been realized domestically, resulting in the inaccuracy of on-chip measurements not meeting the requirements for precision testing. Based on a thorough study of the Multi-TRL algorithm and independently … Read more
1. Why is the touchscreen inaccurate? a. It may be that the reflective stripes around the screen of the acoustic touchscreen are covered with dust after a period of use. Please wipe it with a dry, soft cloth, then turn off the power, restart the computer, and recalibrate. b. It is possible that the reflective … Read more
Click the above “ Tech Training ” to select “Pin to Top Public Account” Over 140,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 1. No Light Spot or Waveform Power is not connected. The brightness knob is not adjusted properly. X, Y-axis offset knob is misaligned. The Y-axis … Read more
To not miss exciting content, please set “Measurement Information Express” as a starred ☆. 1. Entering Adjustment Mode To prevent unauthorized adjustments, specific steps must be followed to enter the adjustment mode. The method may vary among different models of oscilloscopes. Common methods to enter adjustment mode include: 1. Calibration Switch For the Tektronix TDS200 … Read more
The oscilloscope measures the voltage applied to its input. In most cases, this is not an issue, but in certain situations, it is necessary to move the reference measurement plane and recalibrate the oscilloscope’s measurements. For example, if a minimum insertion loss impedance box (MLP) is used to terminate a measurement source with an impedance … Read more
An oscilloscope is an indispensable instrument in modern electrical repair. With it, technicians can quickly and accurately locate common faults, making the proper and skilled use of an oscilloscope a required skill for electrical repair personnel. Although there are various models, specifications, and types of oscilloscopes, their basic structure and function are quite similar. This … Read more
Click on “ Technical Training” above to select “Pin to Top” Over 140,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 4. Usage (1) Pre-Usage Check Before using the oscilloscope for the first time or after long-term storage, it is necessary to perform a simple check to see if … Read more
In the field of electronic engineering, oscilloscopes are important tools for analyzing signal characteristics. When it is necessary to observe and stabilize the waveforms from two different signal sources simultaneously, how can electronic engineers achieve this? Below are the specific steps to efficiently stabilize the display of both signals on the oscilloscope. 1. Check Signal … Read more