Flow_velocity_device_calibration_system_4

Current velocity calibration system

The flow velocity meter calibration system is designed to inspect, evaluate, and calibrate the accuracy of water flow measurement devices in a realistic, simulated environment. The system integrates a flow simulation tank, data processing unit, signal acquisition module, and dedicated software, enabling highly stable and reliable measurement performance.

With the ability to generate and control water flow across a range of velocities, the system supports calibration of multiple types of sensors, including electromagnetic, rotor-based, and acoustic flow sensors. The intelligent control software provides advanced functions for data acquisition, error analysis, theoretical velocity calculation, and automatic report generation in compliance with technical standards.

This solution is ideal for applications in hydrology, marine research, environmental monitoring, and specialized instrument verification, helping to enhance the accuracy and reliability of underwater measurement systems.

Features
  • Generate current velocities from 0 to 500 cm/s (5 m/s), with a maximum acceleration of 2 m/s² across a 5 m measurement section, for stable, repeatable calibration and performance verification.
  • Calibrate electromagnetic, rotor-based, and acoustic flow velocity sensors using an integrated hydrophone (0.25–10 MHz, 398 nV/Pa sensitivity, BNC interface) for acoustic reference measurements.
  • Cover the full 0–500 cm/s sensor range at ±2% MV (or ±0.5 cm/s) accuracy to meet diverse operational requirements.
  • Collect, process, and analyze measurement data automatically via an RS232 sensor connection (4.75–5.25 VDC supply) and USB PC connection through an integrated software platform.
  • Display real-time flow parameters, sensor outputs, and calibration status.
  • Perform deviation analysis, theoretical velocity calculation, and performance comparison to improve measurement accuracy.
  • Generate standardized, ISO 3455-compliant calibration reports with recorded test data and analysis results.
  • Maintain reliable communication and stable signal transmission between DUTs and the processing unit via 2 BNC acoustic DAQ channels and 1 flow velocity DAQ channel.
  • Adjust the mounting structure to install and align devices of different types and sizes within the 11.7 m tank (including safety area) and 1.1 m maximum depth.
  • Support calibration procedures aligned with hydrology and environmental measurement standards, including ISO 3455.
  • Simplify test setup, operation, monitoring, and report management via intuitive control software running on an Intel Core i5 (2 GHz), 8 GB RAM, 512 GB storage, and a 14-inch Full HD display, with 4×USB, HDMI, Gigabit Ethernet, Serial, Bluetooth, and Wi-Fi connectivity.
  • Stabilize and protect power delivery with a 10 kVA three-phase unit (380 V ±15% input / 380 V ±1% output) that disconnects output under overvoltage or overcurrent and withstands 150% overload for 10 seconds.

  • Calibrates current meters and underwater flow sensors for precise measurement of ocean currents, tides, and marine water movement.

  • Verifies fluid flow instruments in rivers, lakes, and industrial facilities to ensure accurate environmental and operational data.

  • Tests hydrodynamic and acoustic sensors under a wide range of simulated, low-turbulence flow conditions.

  • Automates data acquisition and report generation through an integrated software platform to minimize manual paperwork and human error.

  • Provides a flexible mounting structure to easily install, align, and calibrate multiple sensor types and device sizes.

  • Ensures high operational safety during continuous testing using built-in overvoltage, overcurrent, and power stabilization systems.

  • Used to calibrate current meters and underwater flow sensors for accurate measurement of ocean currents, tides, and water movement in marine environments.
  • Supports verification and calibration of flow measurement instruments used in rivers, lakes, reservoirs, and wastewater treatment systems to ensure reliable environmental data.
  • Enables precise testing and calibration of underwater navigation and monitoring equipment used on ships, submarines, and marine platforms.
  • Provides a controlled environment for testing and validating hydrodynamic sensors, acoustic flow meters, and experimental underwater instruments.
  • Used in industries requiring accurate fluid flow monitoring, such as power plants, water supply systems, oil & gas facilities, and industrial process control systems.
  • Assists manufacturers and calibration laboratories in evaluating the performance, accuracy, and reliability of flow velocity meter before deployment.
  • Supports calibration for electromagnetic, rotor-based, and acoustic flow sensors under different simulated flow conditions.

 

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