* Question What are the main aspects of the signal loss mechanism in the acoustic channel? * Answer There are…
* Question What is the security and confidentiality of smart card communication? * Answer The security of smart cards is…
* Question What are the circuit characteristics and circuit analysis methods? * Answer (1) The negative full-wave rectification circuit is…
* Question What are the typical products of the 13.56 MHz RFID tag? * Answer IS0 14443 TypeA card, IS0…
* Question Compared with PLC band-pass couplers, transformer coupling circuits are widely used in low-voltage PLCs. Why? * Answer Mainly…
* Question What are the main technical requirements for the substation? * Answer Load Forecasting.Auxiliary vibration detection.Substation equipment status maintenance.Device…
* Question Briefly describe the origin of PLC? * Answer In 1969, the United States’ Digital Equipment Corporation (DEC) developed…
* Question According to the measurement of the displacement object, the inductive synchronizer can be divided into why? * Answer…
* Question What are the detection methods for Resistorss and potentiometers? * Answer (1) Appearance inspection For the fixed resistance,…
* Question What are the circuit characteristics and circuit analysis methods? * Answer (1) The negative full-wave rectification circuit is…
