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NPN and PNP sensors exhibit significant differences in current direction, voltage polarity, type of charge carriers, and output states. In applications such as safety light curtains, these differences allow them to be tailored to various electrical system configurations and safety needs. Therefore, it is crucial to carefully consider the application scenario and requirements when selecting a sensor to ensure system safety and reliability.

A technical employee is currently working on a safety system and has some questions about safety relays. Below are some of the questions he posed and the corresponding answers, aimed at assisting those using or considering safety relays.

The origin of laser technology dates back to the 1950s, when scientists developed the theory of "stimulated emission" based on quantum mechanics. In 1960, Theodore Maiman successfully created the first laser using a ruby as the gain medium, marking the dawn of a new era in laser technology.

IO-Link is a standardized digital communication protocol for industrial automation. It connects sensors, actuators, and controllers like PLCs, enabling efficient data exchange and advanced features. This technology addresses limitations in traditional systems, improving device connectivity, diagnostics, and overall system performance.

DADISICK employees brought their families with their families in May 1 Xiamen Tourism for three days to provide employees and their families with an unforgettable leisure vacation experience. This activity uses the beautiful time of the May Day holiday. By visiting Xiamen's famous attractions and experienced local characteristics and food, everyone can share joyful time, enhance the understanding and friendship between each other, and spend a fulfilling and pleasant holiday.