A servo gauge system, also known as a servo tank gauging system or servo level measurement system, is a type of level measurement system used to accurately measure the level of liquids in storage tanks. It employs a servo motor-driven probe or tape, along with advanced electronics, to provide precise and reliable level measurements. Here's how a servo gauge system works:

1. Probe Installation:

   • The servo gauge system consists of a probe or tape that is installed vertically inside the storage tank. The probe extends from the top of the tank to the bottom, allowing it to measure the level of the liquid throughout the entire tank height.

2. Servo Motor Control:

   • The probe is equipped with a servo motor, which drives the movement of the probe inside the tank. The servo motor precisely controls the position of the probe and allows it to move smoothly and accurately up and down the tank.

3. Measurement Principle:

   • The servo gauge system operates based on the principle of buoyancy and weight displacement. As the probe moves up or down inside the tank, it encounters resistance from the liquid. The servo motor applies force to overcome this resistance and maintain a constant speed of movement.

4. Feedback Loop:

   • The servo gauge system continuously monitors the position of the probe using feedback sensors. These sensors provide real-time feedback on the position of the probe relative to the liquid surface.

5. Level Calculation:

   • Based on the position feedback from the sensors, the servo gauge system calculates the level of the liquid in the tank. It uses algorithms and calibration data to convert the probe position into an accurate measurement of liquid level.

6. Data Processing and Display:

   • The level measurement data collected by the servo gauge system is processed by onboard electronics. The system may include a digital display, data logging capabilities, or communication interfaces for transmitting the level data to external systems or controllers.

7. Accuracy and Calibration:

   • Servo gauge systems are known for their high accuracy and reliability. They are often calibrated against reference standards or certified measurement devices to ensure accurate level measurements.

8. Additional Features:

   • Some servo gauge systems may include additional features such as temperature compensation, density correction, leak detection, overfill prevention, and tank inventory management capabilities.

Overall, servo gauge systems provide precise and continuous level measurement of liquids in storage tanks. They are widely used in industries such as oil and gas, petrochemicals, chemicals, water treatment, and food and beverage for inventory management, process control, and environmental monitoring applications.