330104-00-07-10-01-05 接近式探頭，也稱為接近傳感器或接近開(kāi)關(guān)，是一種電子裝置，用于檢測(cè)物體（通常是金屬物體）的接近而不需要物理接觸。當(dāng)目標(biāo)物體進(jìn)入其檢測(cè)范圍時(shí)，接近式探頭會(huì)輸出一個(gè)信號(hào)，通常是一個(gè)開(kāi)關(guān)信號(hào)，用于觸發(fā)其他設(shè)備或系統(tǒng)的動(dòng)作。
接近式探頭廣泛應(yīng)用于工業(yè)自動(dòng)化、機(jī)器人技術(shù)、安全系統(tǒng)、交通控制、醫(yī)療設(shè)備以及許多其他領(lǐng)域。它們可以用于檢測(cè)物體的位置、運(yùn)動(dòng)、計(jì)數(shù)、排序、定位等，是實(shí)現(xiàn)自動(dòng)化和智能化控制的關(guān)鍵組件。
接近式探頭的工作原理可以基于不同的技術(shù)，包括：
電感式：利用電磁感應(yīng)原理，當(dāng)金屬物體接近探頭時(shí)，會(huì)改變探頭周圍的磁場(chǎng)，從而引發(fā)電信號(hào)的變化。
電容式：利用電容原理，當(dāng)物體接近探頭時(shí)，會(huì)改變探頭與物體之間的電容值，導(dǎo)致電路狀態(tài)變化。
霍爾效應(yīng)：利用霍爾效應(yīng)原理，當(dāng)磁性物體接近探頭時(shí)，會(huì)改變探頭內(nèi)部的磁場(chǎng)，導(dǎo)致輸出信號(hào)變化。
光電式：利用光電傳感器，當(dāng)物體遮擋或反射光線時(shí)，觸發(fā)開(kāi)關(guān)。
超聲波：利用超聲波的發(fā)射和接收，檢測(cè)物體的距離和位置。
磁性：利用磁性原理，當(dāng)磁性物體接近探頭時(shí)，會(huì)引發(fā)電信號(hào)的變化。

330104-00-07-10-01-05

An proximity probe, also known as an proximity sensor or proximity switch, is an electronic device used to detect the proximity of an object (usually a metal object) without the need for physical contact. When a target object enters its detection range, the proximity probe outputs a signal, usually a switching signal, that is used to trigger the action of other devices or systems.
Proximity probes are widely used in industrial automation, robotics, security systems, traffic control, medical devices, and many other fields. They can be used to detect the position, movement, counting, sorting, positioning, etc., and are key components for automation and intelligent control.
The working principle of the proximity probe can be based on different technologies, including:
Inductive: Using the principle of electromagnetic induction, when the metal object is close to the probe, it will change the magnetic field around the probe, which will cause changes in the electrical signal.
Capacitive: Using the principle of capacitance, when the object is close to the probe, the capacitance value between the probe and the object will be changed, resulting in a change in the circuit state.
Hall effect: Using the Hall effect principle, when a magnetic object approaches the probe, it will change the magnetic field inside the probe, resulting in a change in the output signal.
Photoelectric: The use of photoelectric sensors, when the object blocks or reflects light, trigger the switch.
Ultrasonic: Using the transmission and reception of ultrasonic waves to detect the distance and position of objects.
Magnetism: Using the principle of magnetism, when a magnetic object approaches the probe, it will cause a change in the electrical signal.

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