The **FVS-H3-R** is a specialized electronic component, specifically a **High-Speed Digital Fiber Sensor Head** (typically part of the KEYENCE FVS series). It is designed for high-performance detection in industrial automation, particularly for identifying small objects or marks at high speeds. Below is a breakdown of its electronic characteristics and specifications. --- ### 1. Key Technical Specifications The FVS-H3-R is an optical sensor head that relies on fiber optic technology to transmit and receive light signals. | Feature | Specification | | :--- | :--- | | **Detection Method** | Thrubeam (Emitter and Receiver) | | **Light Source** | Red LED (Visible) | | **Fiber Diameter** | Standard 2.2 mm | | **Response Time** | Extremely fast (Microsecond range) | | **Cable Type** | R (Flexible/Robot cable) for moving parts | | **Enclosure Rating** | IP67 (Dust and Water-resistant) | --- ### 2. Core Electronic Components The device functions through three primary electronic stages: #### A. The Emitter (Light Output) The "H3" designation often refers to a high-intensity red LED. This LED is modulated at a specific frequency to ensure the receiver only reacts to its own light, preventing interference from ambient warehouse lighting or sunlight. #### B. The Fiber Optic Interface The "R" in the model name indicates a **flexible fiber**. Electronically, this is passive, but it is physically constructed with a multi-core plastic fiber that allows it to be bent repeatedly (high bend radius) without losing signal integrity, making it ideal for robotic arms. #### C. The Digital Amplifier (Separate Unit) The sensor head (FVS-H3-R) must be connected to a **Digital Fiber Amplifier** (like the FS-N series). The amplifier performs the following electronic tasks: * **A/D Conversion:** Converts the analog light intensity into a digital value. * **Threshold Processing:** Compares the received signal against a user-defined set point. * **Logic Output:** Triggers a PNP or NPN transistor output to signal the PLC (Programmable Logic Controller). --- ### 3. Application Use Cases Because of its high-speed electronic response, the FVS-H3-R is used in: 1. **Leading Edge Detection:** Detecting the exact start of a label or wafer. 2. **Vibration Resistance:** Using the "R" type cable in environments where the sensor head is mounted on a moving gantry. 3. **Small Object Counting:** Detecting parts as small as 0.1mm passing through the beam. --- ### 4. Wiring and Integration The electronic integration usually follows this logic: ```yaml Sensor Head (FVS-H3-R) --> Connected via Fiber Cables --> Amplifier Unit (FS-V/FS-N) --> Brown Wire: +24V DC --> Blue Wire: 0V (GND) --> Black Wire: Control Output (Signal) ```