A sensor is a detection device that can sense the information being measured and convert that information into electrical signals or other required forms of output according to certain rules, to meet the requirements for information transmission, processing, storage, display, recording, and control. It is the primary link in achieving automatic detection and automatic control. … Read more
01What is Kirchhoff’s Theorem? Kirchhoff’s Current Law: The algebraic sum of currents entering and leaving any node in a circuit is zero. Kirchhoff’s Voltage Law: The algebraic sum of voltages in any closed loop of a circuit is zero. 02Thevenin’s Theorem A two-terminal circuit containing independent sources, linear resistors, and controlled sources can be equivalently … Read more
Source: CSDN Blog, Author: I Am Not A Melon. 1Given the transfer function, find the frequency response characteristics. Take a random transfer function as an example Write the code in MATLAB as follows. There are two ways to write the code, one is to directly write the expression of the transfer function G , which … Read more
In the field of digital signal processing, the Nyquist sampling theorem establishes the fundamental criterion for signal digitization— to accurately reconstruct a continuous signal, the sampling frequency must be at least twice the highest frequency of the signal.However, engineers have observed an interesting phenomenon: in practical applications, we often generate signals exceeding 500MHz using a … Read more
The digital multimeter is a powerful assistant for measuring electrical signals. Although it is called a “universal” meter, its common functions are limited to measuring voltage, current, and resistance. Voltage and current measurements also include AC and DC ranges. In addition, some multimeters can measure inductance, capacitance, continuity, diode forward voltage, transistor current gain, counting … Read more
Statement: Thisarticle is reprinted from Feidu Academy public account. If there are any issues related to the content, copyright, or other matters, please contact the staff via WeChat (prrox66), and we will handle your request promptly! Submission/Recruitment/Advertisement/Course Cooperation/Resource Exchange Please add WeChat: 13237418207 Comparison of Bipolar and Unipolar Antennas Why Does IQ Mismatch Cause Image … Read more
01 What Went Wrong to Study Passive Probes It all started with a question: Can a 1X passive probe be used to match a 50-ohm or 75-ohm system like a coaxial cable? Experienced individuals would immediately answer no, because even a 1X probe has a significant resistor in series. I happened to have a discarded … Read more
First, what is a Digital-to-Analog Converter (DAC)? A DAC is used to convert digital samples in bit form into analog waveforms of current or voltage. In short, a DAC is used to reconstruct an analog signal from a digital signal. The process of reconstructing an analog signal from a digital signal is as follows. First, … Read more