φ3環(huán)形接近開關(guān)產(chǎn)品介紹（中文版）
φ3環(huán)形接近開關(guān)是一款專為精密檢測場景設(shè)計(jì)的非接觸式感應(yīng)裝置，采用環(huán)形結(jié)構(gòu)設(shè)計(jì)，外徑僅為3毫米，適用于狹小空間內(nèi)的物體位置檢測。產(chǎn)品基于電磁感應(yīng)原理工作，能夠在無物理接觸狀態(tài)下快速識別金屬或非金屬目標(biāo)的接近狀態(tài)，具有響應(yīng)速度快、檢測精度高、使用壽命長等特點(diǎn)。
該產(chǎn)品采用一體化緊湊型設(shè)計(jì)，內(nèi)部集成高靈敏度感應(yīng)元件與信號處理模塊，有效減少外部干擾對檢測結(jié)果的影響。環(huán)形中空結(jié)構(gòu)設(shè)計(jì)支持導(dǎo)線或微型部件穿行，便于在自動化設(shè)備中實(shí)現(xiàn)嵌入式安裝。核心元件選用耐高溫、抗腐蝕材料，確保在-25℃至+85℃寬溫域范圍內(nèi)保持穩(wěn)定工作狀態(tài)，防護(hù)等級達(dá)到IP67，可適應(yīng)粉塵、油污等復(fù)雜工業(yè)環(huán)境。
在實(shí)際應(yīng)用中，φ3環(huán)形接近開關(guān)可精準(zhǔn)檢測微小型零部件的到位情況，特別適用于精密裝配線、微型電機(jī)、醫(yī)療儀器等對空間要求嚴(yán)苛的場景。其毫秒級響應(yīng)速度可滿足高速流水線的實(shí)時檢測需求，0.1mm級別的檢測精度為產(chǎn)品質(zhì)量控制提供可靠保障。產(chǎn)品兼容DC12-24V寬電壓輸入，支持NPN/PNP兩種輸出模式，方便與主流PLC及控制系統(tǒng)對接。
通過優(yōu)化的電磁場分布設(shè)計(jì)，本產(chǎn)品有效解決了傳統(tǒng)接近開關(guān)存在的相鄰設(shè)備干擾問題。無機(jī)械觸點(diǎn)設(shè)計(jì)徹底消除磨損風(fēng)險，典型使用壽命超過1000萬次操作循環(huán)。安裝時只需注意保持檢測面與目標(biāo)物間的合理間隙（建議0.5-2mm），即可實(shí)現(xiàn)穩(wěn)定的檢測效果。適用于金屬切削機(jī)床、SMT貼裝設(shè)備、機(jī)器人末端執(zhí)行器等自動化設(shè)備的定位檢測需求。
φ3環(huán)形接近開關(guān)產(chǎn)品介紹（英文版）
The φ3 Annular Proximity Switch is a non-contact sensing device specifically designed for precision detection scenarios. Featuring a compact annular structure with an outer diameter of only 3mm, this product excels in detecting object positions within confined spaces. Operating on electromagnetic induction principles, it reliably identifies the approach status of both metallic and non-metallic targets without physical contact, offering rapid response, high detection accuracy, and extended service life.
With its integrated compact design, this switch incorporates high-sensitivity sensing elements and signal processing modules that effectively minimize external interference. The hollow annular structure allows for cable routing or micro-component passage, enabling seamless integration in automated systems. Constructed with temperature-resistant and corrosion-resistant materials, the device maintains stable performance across a wide temperature range from -25℃ to 85℃, while its IP67 protection rating ensures reliable operation in challenging industrial environments with dust or oil exposure.
In practical applications, the φ3 annular proximity switch demonstrates exceptional capability in detecting miniature components, making it particularly suitable for precision assembly lines, micro-motors, and medical instruments where spatial constraints are critical. With millisecond-level response speed, it meets real-time detection requirements in high-speed production lines, while its 0.1mm detection accuracy provides dependable quality control. The product supports DC12-24V wide voltage input and offers both NPN/PNP output configurations for seamless compatibility with mainstream PLC systems.
Through optimized electromagnetic field distribution design, this proximity switch effectively eliminates interference from adjacent equipment—a common issue with traditional sensors. The contactless design completely eradicates mechanical wear, ensuring an operational lifespan exceeding 10 million cycles. For optimal performance, users should maintain a recommended detection gap of 0.5-2mm between the sensor face and target object. This product is widely adopted in metal cutting machines, SMT placement equipment, robotic end-effectors, and other automated systems requiring precise positioning verification.
