As the core control unit, the design and function of the vortex flowmeter circuit board directly affect the performance of the flowmeter. Based on the working principle of the vortex flowmeter (detecting fluid flow based on the Karman vortex phenomenon), the main advantages of its circuit board can be summarized as follows from the aspects of technical characteristics, performance advantages, and application value:
Accurate acquisition of high-frequency signals:
The circuit board integrates high-speed analog-to-digital conversion (ADC) modules and digital signal processing (DSP) chips, which can capture weak frequency signals (usually tens to thousands of Hz) generated by vortex generators in real time. Through filtering, amplification, and noise reduction algorithms, the signal acquisition error is ensured to be less than 0.1%, meeting high-precision measurement requirements (such as measurement accuracy of ± 1% R).
Nonlinear compensation and intelligent algorithms:
The built-in microprocessor (MCU) can correct the influence of fluid density and viscosity changes on measurement results through temperature/pressure compensation algorithms, adapt to different working conditions (such as high temperature, high pressure, and variable medium), and improve measurement stability in complex environments.
High reliability and anti-interference design
Hardware anti-interference enhancement:
Adopting multi-layer PCB layout, electromagnetic shielding (such as metal shielding cover), power filtering (LC filtering circuit, isolated power module) and signal isolation technology (optocoupler isolation, differential signal transmission), it effectively resists electromagnetic interference (EMI), radio frequency interference (RFI) and power noise in industrial sites, ensuring stable operation in strong interference environments such as frequency converters and motors.
Wide temperature and wide pressure adaptability:
Select industrial grade electronic components (such as ambient temperature: -30 ° C to+65C; Relative humidity: 5% to 95%; Atmospheric pressure: 86KPa~106KPa, wide voltage input module), supports DC 12~24V or AC 220V power input, suitable for harsh environments such as outdoor, vibration, and large temperature differences.
The circuit board of the vortex flowmeter achieves accuracy, stability, and adaptability in flow measurement through advantages such as high-precision signal processing, strong anti-interference ability, intelligent functional integration, and low-power design. It is widely used in industries such as petrochemicals, power, water, metallurgy, etc., especially in complex working conditions and automation systems. Its core value lies in the collaborative optimization of software and hardware to improve instrument performance while reducing user usage and maintenance costs.
Post time: Jun-05-2025