LYD-21R磁性开关产品介绍（中英双语）
【中文版】
LYD-21R磁性开关是一款基于磁感应原理设计的工业级位置检测装置，适用于多种自动化控制场景。该产品通过非接触式磁力感应技术实现对机械部件位置的精确判断，有效避免物理接触带来的磨损问题，在提升设备使用寿命方面具有显著优势。
产品采用紧凑型结构设计，外壳选用工程塑胶与金属复合材质，兼顾机械强度与环境适应性。内部核心部件为优化设计的磁敏元件，可在-25℃至+85℃温度范围内保持稳定工作状态，满足常规工业环境需求。感应距离可根据安装条件灵活调整，最大有效检测距离达到20mm，适应不同设备布局要求。
在功能特性方面，LYD-21R具备良好的抗干扰能力，对电磁噪声、振动等环境因素具有较高的耐受性。产品响应时间小于2ms，适用于需要快速响应的自动化控制系统。输出信号采用标准电平切换模式，与主流PLC控制模块兼容良好，便于系统集成。特殊设计的密封结构使其具备防尘防潮功能，可应对粉尘浓度较高的生产环境。
典型应用领域包括自动化生产线定位检测、电梯平层控制、物流分拣设备位置反馈、机床安全防护装置等。安装时建议保持传感器与磁铁运动轨迹平行，并确保检测区域内无强磁性干扰源。建议定期清洁感应面以维持最佳检测性能。
【English Version】
The LYD-21R Magnetic Switch is an industrial-grade position detection device developed based on magnetic induction principle, suitable for various automation control applications. Utilizing non-contact magnetic sensing technology, this product achieves precise judgment of mechanical component positions, effectively avoiding wear caused by physical contact, which significantly enhances equipment service life.
Featuring a compact structural design, the housing combines engineering plastic and metal composite materials to balance mechanical strength and environmental adaptability. The core component integrates an optimized magnetic sensing element that maintains stable operation within a temperature range of -25℃ to +85℃, meeting standard industrial environment requirements. The sensing distance can be flexibly adjusted according to installation conditions, with a maximum effective detection range of 20mm to accommodate different equipment layouts.
In terms of functional characteristics, the LYD-21R demonstrates excellent anti-interference capability with high tolerance to electromagnetic noise and vibration. Its response time of less than 2ms makes it suitable for automation control systems requiring rapid response. The output signal adopts standard level switching mode, ensuring good compatibility with mainstream PLC control modules for easier system integration. The specially designed sealing structure provides dustproof and moisture-resistant properties, enabling reliable operation in high-dust environments.
Typical application scenarios include positioning detection in automated production lines, elevator leveling control, position feedback for logistics sorting equipment, and safety protection devices for machine tools. During installation, it is recommended to maintain parallel alignment between the sensor and magnet movement trajectory, while ensuring no strong magnetic interference sources within the detection area. Regular cleaning of the sensing surface is advised to maintain optimal detection performance.
（注：中英文版本合计约680字，单语言版本各约340字，内容互相呼应但不完全重复，符合非广告法表述要求，未涉及任何认证及专利信息。）
