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     1. Will the mobile phase in the column be drained?      Many people who do chromatographic separation experiments have encountered such a situation: the mobile phase is not replenished in time, ...[Details]

Milestone demonstrates features required for future 5G mmWave deployments in China, underscoring leading edge of new mmWave capabilities to support global 5G expansion San Diego, J...[Details]

　　Ultrasonic level meters are simple and convenient to install. They are non-contact measurements and are not affected by the viscosity and density of the liquid. They are particularly widely used in...[Details]

The aluminum-based ceramic heat sink based on the three-dimensional heat dissipation topology is a new type of heat sink with independent intellectual property rights developed under the framework of...[Details]

The compact non-contact tester has the advantages of simple circuit, reliable performance, and easy use. It can detect whether the power wire is charged outside the insulator of the power wire and ...[Details]

Power line communication (PLC) is a unique communication method for power systems. Power line communication refers to the technology of using existing power lines to transmit analo...[Details]

1. Structure of stepper motor The stepper motor is roughly divided into two parts: the stator and the rotor. The rotor consists of three parts: rotor 1, rotor 2, and permanent magnets. The rot...[Details]

1. Experimental phenomenon:   When the computer sends data to the microcontroller, the light at port P0 changes. 2. Experimental task analysis:   We still use method 1 to complete this experi...[Details]

Independent buttons First of all, since it is to detect the input, of course, a pull-up resistor must be used to detect changes in the pin level. In the 51 microcontroller, in addition to the P0 port...[Details]

The oscilloscope is one of the indispensable equipment in the field of electronic measurement. It is increasingly used and has become a powerful tool in daily work and production. So how to maintain ...[Details]

　　CS1240 is a precision analog-to-digital conversion (ADC) chip developed in China with a resolution of 24 bits and an effective accuracy of up to 21 bits. It can be widely used in industrial process...[Details]

With the development of science and technology, terminal devices equipped with various intelligent technologies have begun to enter thousands of households, hoping to bring a more comfortable daily l...[Details]

In the previous article "Talking about BYD's three new technologies that will soon be put into mass production", I briefly talked about BYD's upcoming Green Quiet and Green Hybrid technologies. At th...[Details]

1) Using ADC0809 to collect DC voltage 1. The first digital tube displays the sampling input port 2. The last three digits are the sampling voltage (II) Using ADC0809...[Details]

1. What are the articles and books about ISI? There are two relatively famous SI books that mention ISI. In the "High-Speed ​​Digital System Design - Interconnect Theory and Design Practice Handbook"...[Details]