AUDIOWELL’s self developed vortex flow sensor is designed specifically for liquid flow measurement, delivering exceptional performance particularly in complex conditions such as large flow rates, high velocities, and high viscosity coolants. It provides a cost effective flow monitoring solution for water treatment, industrial circulating cooling, water supply networks, and other applications.
Scientific Principle: The Kármán Vortex Street Effect
The core measurement principle of the AUDIOWELL vortex flow sensor is based on the classic Kármán vortex street effect. When a fluid (liquid or gas) flows past a non streamlined vortex shedder installed inside the sensor pipeline, alternating regular vortices are generated on both sides of the shedder, forming a vortex street. Within a certain Reynolds number range, the shedding frequency of the vortices is proportional to the fluid velocity. Using high sensitivity piezoelectric or capacitive detection elements, the sensor accurately captures this frequency signal. Combined with an built in fluid dynamics model and an adaptive digital signal processing algorithm, the sensor ultimately outputs a pulse or analog signal corresponding to the volumetric flow rate, achieving stable, real time flow measurement.
This principle offers the theoretical advantage of being independent of fluid properties such as density, temperature, and pressure (it depends only on flow velocity and the characteristic dimensions of the shedder), and it has no moving parts, fundamentally eliminating the risks of mechanical wear and jamming.
Core Product Advantages
Excellent Immunity to Bubbles and Impurities
The vortex signal strength is primarily influenced by flow velocity and the geometry of the vortex shedder, and is insensitive to tiny bubbles or suspended particles entrained in the fluid. Combined with AUDIOWELL’s proprietary signal filtering and adaptive gain control technology, it effectively suppresses signal noise in gas-liquid two phase flow and wastewater environments, ensuring low drift and high repeatability.
Modular Structure, Extremely Low Pressure Loss
The product features a compact modular design. The vortex shedder and detection unit can be independently assembled and disassembled, facilitating on-site maintenance and range changes. The flow channel geometry is optimized using fluid dynamics, resulting in pressure loss far lower than that of orifice plates or turbine flow meters of the same diameter. This makes it especially suitable for gravity flow or low-residual-pressure piping systems where energy consumption is a concern.
Instantaneous Flow Accuracy of ±3% F.S.
Over its full range, the AUDIOWELL vortex flow sensor achieves an instantaneous flow measurement accuracy of ±3% of full scale (F.S.), meeting the standard metering requirements of industrial process control and water treatment applications. For large flow ranges, the sensor offers excellent repeatability, helping to accurately monitor water or coolant consumption.
Optional Temperature Sensor for Simultaneous Flow and Temperature Detection
For high viscosity coolants or hot water circulation systems, AUDIOWELL offers an optional built in temperature sensor. Users can obtain fluid temperature and instantaneous flow data simultaneously, facilitating heat exchange calculation or cooling efficiency monitoring without the need for additional temperature measurement points, thereby reducing system integration costs.
Wide Applicability, Addressing Industry Pain Points
Industrial circulating cooling water systems: In high velocity, high viscosity coolants (e.g., ethylene glycol solutions), traditional electromagnetic or ultrasonic sensors may suffer from signal attenuation or scaling. The vortex sensor, with its impurity immunity and low pressure loss, ensures long-term stable operation.
Influent, effluent, and aeration pipelines in wastewater treatment plants: In environments with rapidly fluctuating bubble content, the vortex sensor still maintains reliable frequency counting, assisting process optimization.
Large-flow raw water and transmission pipelines: It can measure large flow directly without diameter reduction, reducing engineering costs.
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