Flow Meter Manual | Fluid Control Technology Science Popularization Series (1): What is fluid control?

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1. ISTA3L Test

2. Function of Automotive Air Flow Meter

Air Flow Meter (AFM) is the abbreviation for Manifold Air Flow Meter (MAFM), also known as Air Flow Sensor (AFS). Its function is to detect the size of the engines intake air volume and convert the intake air volume information into an electrical signal to input into the electronic control unit (ECU) for calculating and determining the type of fuel injection. The intake quantity signal is the main basis for the electronic control unit to accurately calculate the fuel injection quantity. If the air flow meter fails, the electronic control unit will activate the standby mode, set the air flow value at 5g/s, and record the fault code. At this time, it will cause unstable idle, engine wheezing, idle idle wandering, high idle speed, increased fuel pulse width, fuel consumption, delayed ignition, and poor exhaust emissions. Malfunction without signal: Some car models do not start, some car models have unstable idle, shake and delay, and accelerate and stall. Signal voltage too high or too low: not starting, high or low idle, shaking.

3. Popular Science Series on Fluid Control Technology (Part 1): What is Fluid Control?

Fluid control technology mainly refers to the management and regulation of liquid and gas flow, that is, the use of various devices to control the flow velocity, direction, and pressure of fluids, ensuring that they reach the predetermined location in the required way..

1. The Importance of Fluid Control Safety Assurance Fluid control technology precisely manages the flow paths of liquids and gases to avoid risks of leakage, spillage, or contamination.

. For example, the tap water system ensures safe and rel Flow meter manual

iable water quality through pressure regulation and pipeline sealing design; In industrial scenarios, fluid control of chemical pipelines can prevent the leakage of toxic substances and protect personnel and environmental safety. Accurate fluid control that improves efficiency can optimize equipment operating parameters and enhance overall system efficiency. For example, in chemical production, by adjusting the fluid flow rate and temperature inside the reactor, the stability of the reaction can be maintained, the production cycle can be shortened, and the product qualification rate can be improved; In agricultural irrigation, drip irrigation systems achieve efficient utilization of water resources and reduce evaporation losses through flow control. Resource conservation fluid control achieves maximum resource utilization by reducing waste. For example, medical infusion equipment accurately controls the speed of drug delivery through flow meters to avoid excessive or insufficient medication; Home gas stoves regulate gas flow through valves, meeting cooking needs while reducing energy consumption.

Secondly, the core fluid control equipment pump is the power source for fluid transportation, which drives the flow of liquid or gas through mechanical energy conversion.

. Common types include centrifugal pumps, which use centrifugal force to accelerate fluids and are suitable for high flow, low-pressure scenarios (such as urban water supply). Peristaltic pump: Transport fluid through a roller squeezing hose, suitable for high-precision molding and corrosive liquids (such as medical infusion). Gear pump: relying on gear meshing to generate pressure, suitable for high viscosity fluids (such as lubricating oil transport

Flow Meter Manual | Fluid Control Technology Science Popularization Series (1): What is fluid control?

1. ISTA3L Test

2. Function of Automotive Air Flow Meter

3. Popular Science Series on Fluid Control Technology (Part 1): What is Fluid Control?

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