The portable radar level gauge is a liquid level measurement instrument that can be carried and used at any time. With an internal battery and wireless communication module, it can perform rapid and accurate liquid level measurements wherever needed.

Portable radar level gauges mainly adopt two principles, often integrated in the same device:

1. Frequency Modulated Continuous Wave (FMCW) radar
   • Working principle: Exactly the same as fixed FMCW radar, it emits a continuous wave with a linearly changing frequency and calculates the distance by measuring the frequency difference between the transmitted and received waves.
   • Advantages: Extremely high accuracy (up to ±1mm), almost no blind zone, strong resistance to steam and dust.
   • Application: Suitable for high-precision liquid measurement (such as refined oil and chemicals), it is the high-end and mainstream choice among portable devices.
2. Pulse radar
   • Working principle: It emits short pulses and measures the time of the echo.
   • Advantages: Relatively simple circuit, low power consumption, and cost-effective.
   • Application: General-purpose measurement, suitable for situations where extremely high precision is not required.
3. (Common combination) Ultrasonic or laser distance measurement module

   Many portable devices integrate ultrasonic sensors (for short distances, normal pressure, and air environments) or laser distance measurement (for very clean working conditions) simultaneously, providing users with more options.

• Safety: Completely non-contact, achieving "zero-distance" measurement, ensuring personnel safety.
• Efficiency: Fast measurement speed, operable by one person, significantly enhancing inspection and inventory efficiency.
• Flexibility: Multi-functional, capable of handling various types of storage tanks (such as dome tanks, floating roof tanks, spherical tanks, etc.) and media (oil, water, chemicals, etc.).
• High Precision: The accuracy of modern portable radars is close to that of fixed instruments, meeting the auxiliary requirements of trade measurement.
• Intelligent Diagnosis: Can display echo curves, helping users determine the tank's internal conditions (such as the presence of obstructions, foam layer thickness, etc.), making it a powerful diagnostic tool.

Portable radar level gauges are widely used in field surveys, temporary projects and other occasions.

Portable radar level gauges are a revolutionary tool for liquid level measurement in the industrial field. They integrate high-precision radar measurement technology into a mobile device, perfectly addressing the core difficulty of safety inspections, quick inventories, and instrument maintenance.