The part number **507T175E1501H** refers to a high-precision, high-reliability **non-contacting position sensor**, typically a **Resolver**. These components are widely used in aerospace, military, and industrial automation for providing accurate feedback on the angular position of a shaft. ### 1. Component Specifications Based on the nomenclature common for these types of high-end resolvers (often associated with brands like Moog or similar aerospace-grade manufacturers), here is a breakdown of the technical characteristics: | Feature | Description | | :--- | :--- | | **Component Type** | Variable Reluctance or Brushless Resolver | | **Input Voltage** | Typically 7V to 15V AC (Excitation) | | **Operating Frequency** | 400 Hz to 10 kHz (standard range) | | **Accuracy** | High precision (often measured in arc-minutes) | | **Mounting Style** | Housed or Pancake style (Integrated into motor assemblies) | | **Durability** | High vibration and shock resistance | --- ### 2. Functional Overview A resolver functions as a specialized rotary transformer. It consists of a stationary part (stator) and a rotating part (rotor). * **Excitation:** A reference AC signal is applied to the rotor. * **Output:** As the rotor turns, two stator windings (placed 90° apart) output sine and cosine waves. * **Decoding:** The ratio of these two voltages is used by a **Resolver-to-Digital Converter (RDC)** to determine the exact absolute position of the shaft. --- ### 3. Key Advantages The **507T175E1501H** is preferred over optical encoders in specific environments due to the following: 1. **Extreme Temperature Tolerance:** Unlike encoders with sensitive glass disks or LEDs, resolvers are mostly made of copper windings and steel laminations. 2. **EMI Resistance:** Excellent performance in high-noise electromagnetic environments. 3. **Longevity:** Since there are no brushes or contact points, the mechanical wear is virtually non-existent. --- ### 4. Typical Applications * **Aerospace:** Control surface actuators (flaps, rudders). * **Defense:** Gimbal systems and turret positioning. * **Heavy Industry:** Brushless DC (BLDC) motor commutation in harsh environments.