The **FUD-3F-R.SLASHQ** is a specific model within a series of industrial optical fiber sensors (typically associated with brands like KEYENCE or similar industrial automation providers). These devices are used for high-precision detection in tight spaces. --- ### 1. Technical Specifications The "FUD-3F-R" designation refers to a **Fiber Optic Unit** designed for a **Thrubeat** (Opposed) configuration. | Feature | Description | | :--- | :--- | | **Detection Method** | Thrubeat (Separate Transmitter and Receiver) | | **Fiber Type** | Plastic Fiber (Reflective/Sensing) | | **Mounting Style** | M3 Threaded Head | | **Fiber Diameter** | Ø 1.0 mm to 1.3 mm (Inner core) | | **Minimum Bend Radius** | R2 to R5 (High-flexibility variants) | | **Material** | Stainless Steel (SUS) head with Polyethylene jacket | --- ### 2. Core Electronic Components While the fiber unit itself is passive (it does not contain integrated circuits), it functions as the "eyes" for an electronic **Fiber Amplifier**. Its operation involves the following electronic principles: #### A. The Optical Fiber Core The unit uses a high-purity plastic or glass core. It operates on the principle of **Total Internal Reflection**. Light pulses (usually Red LED or Infrared) are sent from the electronic amplifier through this cable. #### B. The "SLASHQ" Feature The suffix `.SLASHQ` often indicates a specific modification or connector type: * **Quick-Connect:** Enhanced ferrule ends for more stable light coupling with the amplifier. * **High Power:** Specialized internal lens structures to increase the sensing distance despite the small diameter. #### C. Interaction with Amplifier To function, this part must be plugged into an electronic amplifier (e.g., FS-N series). The amplifier contains: 1. **Emitter LED:** Generates the light pulses. 2. **Phototransistor:** Receives the light returning from the fiber. 3. **Comparator Circuit:** Digitizes the light intensity into an ON/OFF signal. --- ### 3. Application Use Cases * **Semiconductor Handling:** Detecting the presence of thin wafers. * **Small Part Counting:** Identifying pins or screws on a high-speed assembly line. * **Edge Detection:** Precise alignment of film or paper webs. ---