The **M2UDS-FG-R2** is a specialized electronic component, typically identified as a **high-precision digital displacement sensor (LVDT Type)** or a sensor head used in industrial metrology and automation. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications The device is designed for micro-measurement applications where high repeatability and durability are required. | Feature | Specification | | :--- | :--- | | **Sensor Type** | Contact Displacement / LVDT (Linear Variable Differential Transformer) | | **Output Type** | Digital / Differential | | **Measurement Range** | Typically 2mm to 5mm (model dependent) | | **Resolution** | Sub-micron level (often 0.1μm or 1μm) | | **Interface** | RS-422 or specialized pulse output | --- ### 2. Key Electronic Components & Construction The "Electronic Parts" of this assembly comprise the internal coil structure and the signal processing interface. #### A. Internal Transducer (LVDT Core) * **Primary Coil:** Receives an AC excitation signal. * **Secondary Coils:** Two coils positioned to detect the position of the magnetic core. * **Permeable Core:** Attached to the moving spindle; as it moves, it changes the mutual inductance between the primary and secondary coils. #### B. Integrated Circuitry * **Signal Conditioner:** Converts the analog phase-shift from the coils into a linearized voltage or digital count. * **A/D Converter:** High-speed analog-to-digital conversion to provide the "Digital" aspect of the M2UDS series. * **Line Driver:** Uses differential signaling (RS-422) to ensure the measurement data is not corrupted by electromagnetic interference (EMI) in factory environments. --- ### 3. Wiring and Pinout (Standard R2 Configuration) The "R2" suffix usually denotes a specific connector type or wiring configuration, often a high-flex cable designed for robotic arms. | Wire Color | Signal Name | Description | | :--- | :--- | :--- | | **Red** | VCC | Power Supply (typically 5V or 12-24V DC) | | **Black** | GND | Ground | | **White** | Phase A (+) | Incremental Pulse Output | | **Blue** | Phase B (+) | Incremental Pulse Output (90° shift) | | **Green/Yellow** | Shield | Drain wire for noise reduction | --- ### 4. Technical Advantages * **Noise Immunity:** Because it uses digital differential signaling, it can be used near high-voltage motors without signal "jitter." * **Durability:** The electronic parts are usually vacuum-potted in epoxy to resist oil, water, and dust (IP67 rating). * **Linearity Compensation:** The internal electronics include a lookup table to correct for any mechanical non-linearity in the spring or coil assembly.