The **FRTD-R-01-R** is a specific electronic component primarily categorized as a **Flexible Resistance Temperature Detector (RTD)**. It is designed to measure surface temperatures in applications where space is limited or the mounting surface is curved. --- ### 1. Technical Specifications The following table summarizes the key electronic and physical characteristics of the FRTD-R-01-R: | Parameter | Specification | | :--- | :--- | | **Sensor Type** | RTD (Pt100 or Pt1000 typically) | | **Material** | Platinum Thin-Film on Polyimide (Kapton) | | **Resistance at 0°C** | 100 $\Omega$ (Standard) | | **Temperature Range** | -50°C to +200°C (approximate) | | **Tolerance Class** | Class B (DIN EN 60751) | | **Response Time** | High (due to low thermal mass) | | **Dimensions** | Thin-film / Ribbon style | --- ### 2. Core Electronic Components The device is composed of three main electronic layers: 1. **Sensing Element:** A micro-deposited platinum track. Platinum is used because of its highly linear and stable resistance-to-temperature relationship. 2. **Substrate:** A flexible Polyimide film. This provides electrical insulation while maintaining high thermal conductivity to ensure the sensor reaches the target temperature quickly. 3. **Lead Wires:** Usually nickel-plated copper or silver-plated wire, attached via a reinforced transition point to prevent mechanical failure during bending. --- ### 3. Operating Principle The FRTD-R-01-R operates on the principle of **Resistance Thermometry**. As the temperature of the environment increases, the electrical resistance of the platinum element increases. The relationship is governed by the Callendar-Van Dusen equation: ```python # Simplified Linear Approximation for RTD R_t = R_0 * (1 + alpha * T) # Where: # R_t = Resistance at temperature T # R_0 = Resistance at 0°C (usually 100 ohms) # alpha = Temperature coefficient (0.00385 for Pt100) ``` --- ### 4. Key Advantages * **Flexibility:** Can be wrapped around pipes or adhered to irregular surfaces. * **Low Profile:** The "R-01" designation often refers to its ultra-thin form factor, minimizing interference with airflow or mechanical clearances. * **Accuracy:** Offers better long-term stability and accuracy compared to thermocouples or thermistors in the 0°C to 200°C range.