The **2G3-R2** is a high-precision, industrial-grade **Two-Axis Inclinometer (Tilt Sensor)**. It is primarily used to measure the angular tilt of an object with respect to gravity on both the X and Y axes. --- ### 1. Technical Specifications Below are the typical technical parameters for the 2G3-R2 series: | Parameter | Specification | | :--- | :--- | | **Measurement Axes** | 2 Axes (X and Y) | | **Measuring Range** | ±1° to ±30° (Configurable) | | **Output Signal** | RS232 / RS485 / TTL (Digital) | | **Resolution** | 0.001° | | **Accuracy** | 0.01° (at room temperature) | | **Input Voltage** | 9V – 36V DC | | **Operating Temp** | -40°C to +85°C | --- ### 2. Core Electronic Components The 2G3-R2 relies on several key internal electronic subsystems to function: #### A. MEMS Capacitive Sensing Element The "heart" of the device is a **Micro-Electro-Mechanical System (MEMS)** sensor. It consists of a tiny proof mass suspended by springs. When the device tilts, the mass moves, changing the capacitance between the mass and fixed electrodes. #### B. Analog-to-Digital Converter (ADC) Because the MEMS output is a minute analog voltage/capacitance change, a high-resolution (often 16-bit or 24-bit) **ADC** is used to convert the physical movement into a digital signal that a microprocessor can understand. #### C. Microcontroller (MCU) The internal MCU performs the following tasks: * **Linearization:** Corrects non-linearities in the raw sensor data. * **Temperature Compensation:** Uses an internal temperature sensor to adjust the readings, preventing "drift" caused by heat or cold. * **Filtering:** Applies digital filters (like Kalman or Low-pass) to remove vibration noise. #### D. Communication Interface The R2 suffix usually denotes the specific hardware interface. In this series: * **RS232/RS485 Transceivers:** These chips handle the long-distance data transmission to a PLC or Computer. * **Protection Circuitry:** Includes TVS diodes for ESD protection and polarity protection to prevent damage from incorrect wiring. --- ### 3. Application Use Cases * **Construction:** Leveling of cranes, aerial platforms, and drilling rigs. * **Renewable Energy:** Solar tracking systems to ensure panels are angled perfectly toward the sun. * **Infrastructure:** Monitoring the tilt or structural integrity of bridges and tall buildings. * **Marine:** Measuring the pitch and roll of ships or offshore platforms. --- ### 4. Wiring and Pinout (Standard) | Color | Function | Description | | :--- | :--- | :--- | | **Red** | VCC | Power Supply (9-36V) | | **Black** | GND | Ground | | **Yellow** | RX / A | Data Receive / RS485 A | | **Green** | TX / B | Data Transmit / RS485 B |