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In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
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0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
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Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
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Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
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New Automobile
Hydraulic Clutch
The hydraulic control system uses almost 100% advanced engineering plastics, which overcomes the shortcomings of the main and branch cylinders of metal clutc...[Details]
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An intelligent vehicle is a robot that can automatically drive in an environment according to a pre-set mode, or it can autonomously perform specific operations according to the on-site situation. ...[Details]
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The physical interference of dc/dc switching power converters is well known unless the system and circuit diagram are carefully designed. These converters can inject unwanted charge into the electr...[Details]
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Abstract Aiming at the harm caused by mobile phone microwave radiation to human body and the incompatibility between mobile communication network and fixed-line network, a PSTN voice gateway using ...[Details]
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In the microwave field, frequency synthesizers are the core components of measuring instruments. High-performance measuring instruments need to have large bandwidth, high resolution and low phase nois...[Details]
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New processors in laptops place higher demands on power supplies: higher current, faster response to load steps, and faster adjustment of output voltage after the voltage identification (VID) code ...[Details]
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Transformer burnout is usually caused by excessive temperature rise or insulation damage. The low temperature before burning does not mean that the local temperature is not high. Transformer overlo...[Details]
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The history of DVR technology development can be simply summarized as a process from single-channel to multi-channel, with increasing integration and decreasing cost per channel. Chip technology pl...[Details]
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Fragment velocity is an important parameter for evaluating the explosive effectiveness of warheads. Traditional range fragment velocity measurement systems mostly use multi-channel data acquisition...[Details]
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In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
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1 Introduction
CRC (Cyclic Redundancy Code) verification technology is widely used in the field of measurement, control and communication. In many cases, CRC calculation is implemented by dedi...[Details]