Electronic connectors have a variety of structural forms. With the difference of application environment, frequency and power, these electronic connectors need different insertion and removal forces. The professional insertion and extraction force test can specifically measure the insertion force and extraction force r……
IEEE1394 is a serial digital interface, which has two types: 6-pin and 4-pin. The 6-pin connector is 6-pin, and the small 4-pin connector is 4-pin. The difference between the two interfaces is whether power can be supplied to the connected equipment through wiring. This is because the power supply line can ensure the c……
The wireless network card is a terminal wireless network device. It does not need to be wired, and it can enable the computer to access the wireless network by using wireless signals, getting rid of the limitation of network cables. According to different interfaces, wireless network cards mainly include PCMCIA wireles……
Digital vernier caliper is a precision measuring tool for measuring the length, inner diameter, outer diameter, depth and other values of the workpiece, known as the "industrial eye". Through capacitive grid sensor, digital display vernier caliper can convert mechanical displacement into electrical signal and display i……
The mobile phone SIM card is a user identification card. Through the SIM card holder, the mobile phone can read the digital mobile phone customer information stored on the chip, the encrypted key and other contents, identify the GSM network customer identity, and encrypt the voice information during the call. It comple……
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