Flow Sensor (流量传感器) is a device used to detect the flow rate and volume of liquid or gas. It is widely applied in various industries, agriculture, medical fields, households, and many other sectors, playing a crucial role in monitoring and controlling fluid flows. Here's a detailed overview of Flow Sensor in English:

Definition and Classification

Definition: A Flow Sensor is a device that outputs signals such as pulses, current, or voltage in response to the sensed flow rate and volume of a liquid or gas. These signals are typically proportional to the flow, allowing for water control management and flow calculations.

Classification: Depending on the application and functionality, Flow Sensors can be classified into several types, including water flow switches and sensors designed to measure specific media flow rates. They also differ based on their working principles, such as those utilizing magnetic hysteresis and Hall effect.

Working Principle

The working principle of a Flow Sensor is primarily based on physical phenomena like magnetic hysteresis and Hall effect. For water flow sensors, as liquid flows through a magnetic ring, the movement affects the strength and direction of the magnetic field, causing changes in the magnetic field. A Hall element positioned within this magnetic field is influenced by these changes, outputting an electrical signal proportional to the liquid's flow speed. This electrical signal forms the basis of the Flow Sensor's flow detection.

Applications

Flow Sensors are used extensively across multiple industries:

1. Industrial Sector: Flow Sensors are used to monitor liquid flows on production lines, ensuring quality control, and in food and pharmaceutical manufacturing to guarantee consistent quality throughout the process.

2. Agriculture: In irrigation systems, Flow Sensors monitor water flow rates and concentrations, ensuring crops receive adequate moisture.

3. Medical Field: In medical equipment, Flow Sensors assist doctors in monitoring drug delivery rates and infusion speeds, ensuring accurate dosing and administration.

4. Household: In water dispensers, Flow Sensors help regulate flow and pressure, reducing waste.

Advantages and Characteristics

Flow Sensors offer numerous advantages and characteristics, including:

• Accurate Flow Control: Precisely measures and controls the flow rate of liquids or gases.

• Adjustable Flow Thresholds: Allows for setting different flow thresholds as needed.

• Flow Display and Accumulation: Provides real-time flow information and cumulative flow data.

• Responsive and Long-lasting: Quickly responds to flow changes and has a long service life.

• Easy Connectivity: Facilitates integration with other control systems and devices.

Conclusion

As an essential flow measurement device, Flow Sensors play an indispensable role in various sectors of modern society. By accurately measuring and controlling fluid flows, they ensure production quality, agricultural irrigation efficiency, medical safety, and rational household water usage. With continuous technological advancements and expanding application areas, Flow Sensors' functions and performance will continue to improve and evolve.

1. MAX.PRESS: 1.0Mpa

• This refers to the maximum pressure rating of the device. 1.0Mpa (Mega Pascal) is the maximum pressure that the device can withstand without damage or malfunction. Mpa is a unit of pressure commonly used in engineering and industry.

2. USED TEMP: -10°C~+70°C

• This specifies the operating temperature range of the device. The device can function properly within this temperature range, from -10°C (minus ten degrees Celsius) to +70°C (seventy degrees Celsius). Operating outside this range may affect the device's performance or cause damage.

3. PULSE UNIT: mL/P

• This indicates the unit of measurement used by the device's pulse output. mL/P (milliliters per pulse) means that each pulse generated by the device represents a specific volume of fluid, in this case, milliliters. This allows for precise measurement of fluid flow based on the number of pulses received.