inductance [Application] Ultrasonic transmitting/receiving sensor circuit [performance parameters] The sealed ultrasonic transmitting circuit has a center frequency of 40 kHz, a sensitivity of >100 dB, a bandwidth of >1.5 (100 dB) kHz, a capacitance of 2200 pF, an

What asymmetric encryption algorithm Asymmetric encryption algorithm is a secret method of key. An asymmetric encryption algorithm requires two keys: a public key (publickey) and a private key (privatekey). The public key and the private key are a pair. If the data is encr

OFDM (orthogonal frequencydivisionmulTIplexing) Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier transmission technology mainly applied to digital video broadcasting systems, MMDS (mulTIchannelmulTIpointdistribuTIonservice) multi-channel multi-point distrib

According to this training, the hidden Markov model is obtained, and a simple Pinyin input method is realized by the Viterbi algorithm. Principle introduction Hidden Markov Model Copy a definition of the Internet: The Hidden Markov Model is a

Summary of c51 microcontroller programming points 1, the header file: #include (I use the STC 89C54RD+) 2. Predefined: sbit LED = P1^0// Define the 0 bit of P1 port as LED Note: "P1^0" is written differently from A51 (A51 is P1.0), P1

According to the positioning principle of the GPS receiver and the sensitivity of the GPS receiver to analyze the performance of the receiver, it is found that the sensitivity is closely related to the front-end circuit and the base. Accordingly, filters and low-noise amplifie

Description of switching parameters of microwave radio frequency Remarks: The data compiled are the basic parameters when the product is selected. The specific working principle is not described in detail. Please refer to the relevant bibliography. PIN diode switch The m

Definition: As an object creation mode, the singleton pattern ensures that a class has only one instance and instantiates itself and provides this instance to the entire system. This class is called a singleton class. The singleton mode is divided into a hungry mode and a lazy

From 1958, China produced the first TV set. By 1987, China's TV production exceeded Japan and became the world's number one. China's color TV industry completed the catch-up in production in 29 years. Since then, the new forces of Chinese manufacturing have risen r

Abstract: The ion nitriding process has high requirements on the pressure control in the furnace. This paper designs a gas flow controller based on L298N chip driven DC motor control, which can be used to control the pumping gas flow rate of the reaction furnace and improve th

In the electric vehicle BMS (battery management system) inspection, a 105-series series lithium-ion battery simulator is required to test the BMS measurement accuracy of each cell voltage, using a 6-digit half-voltmeter reading and BMS measurement. Values ​​were

Agilent Technologies Inc. today announced the first Agilent 53200 Series RF and Universal Frequency Counter/Timer family of frequency counters compliant with the LXI Class C standard. With industry-leading performance and availability, the 53200 Series comes standard with com