How to Measure the Quality of Small Capacitors? 1. To test small capacitors below 10pF, since the capacitance of fixed capacitors below 10pF is too small, using an analog multimeter can only qualitatively check for leakage, internal short circuits, or breakdown phenomena.When measuring, you can use the multimeter on the R×10k setting, connecting the two … Read more
1 Background SiC/GaN is increasingly being applied in designs with higher power and voltage, such as motor drivers for electric vehicles (EVs), fast charging stations for electric vehicles, onboard and offboard chargers, wind and solar inverters, and industrial control power supplies/lighting power supplies. As the switching speed of SiC/GaN power devices increases (extremely high dv/dt), … Read more
When observing the waveform on the crystal oscillator pins with an oscilloscope, it often happens that the crystal oscillator waveform is not visible on the screen or the characteristics of the waveform are incorrect. This article explains the correct method for measuring the crystal oscillator waveform with an oscilloscope through practical operations. Through the previous … Read more
A temperature sensor refers to a sensor that can sense temperature and convert it into a usable output signal. Temperature sensors are the core part of temperature measuring instruments and come in a wide variety. Based on the measurement method, they can be divided into two main categories: contact and non-contact. According to the characteristics … Read more
Introduction to Digital MultimetersDigital measuring instruments have become mainstream due to their high sensitivity, accuracy, clear display, strong overload capacity, portability, and ease of use.▲ Figure 1 Below, we will take this type of digital multimeter as an example to briefly introduce its usage methods and precautions. 02Appearance of Digital Multimeter 03Digital Multimeter Usage Diagram … Read more
1. Introduction Currently, most microcontrollers come with built-in ADC converters ranging from 10 to 12 bits. In general applications, how much does the bit depth of ADC conversion affect measurement error? Is a 12-bit ADC sufficient? Below, we will discuss the impact of ADC bit depth on measurement error through actual measurements. 2. Circuit Design … Read more
How do we calculate the positive duty cycle for such a narrow pulse on the screen? We set the horizontal time base to 200us/div, allowing us to observe its two cycles. Since the pulse is too narrow, using traditional manual measurement with cursors is not the best option. What methods can the ZDS2022 provide? The … Read more
Requirements for Companies Using the ‘C’ Mark ✕ ✕ In the “Evaluation Criteria for the Measurement Assurance Capability of Quantitative Packaging Product Manufacturing Enterprises”, there are a series of requirements for using the ‘C’ mark, including: ✕ ✕ Measurement Limits Weight: 5g-25kg Volume: 5mL-25L Length: No limit Product Requirements 01 Net Content Marking Companies must … Read more
Today’s smartphones are no longer just simple communication tools; they are portable computers. The virtual functions we use daily, such as chatting and gaming, are mainly achieved through the processing power of the CPU, while functions that interact with the real world are enabled by sensors. These sensors receive information, perform measurements, and feedback data … Read more
1. Internet of Things and Wireless Sensor Networks1. Introduction to the Internet of Things The Internet of Things (IoT) is referred to as the third wave of the information industry following computers and the internet, representing the direction of development in information and communication technology.The English name for the Internet of Things is “the Internet … Read more