Which kind of sensor to measure air ? Air sensor refers to the sensor which used to measure the air pressure, air temperature, air flow etc.
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How to measure air flow/pressure/temperature ?
Air refers to the mixed gases in the earth’s atmosphere, so air is a mixture, which is mainly composed of nitrogen, oxygen, rare gases (helium, neon, argon, krypton, xenon, radon), carbon dioxide and other substances (such as water vapor, impurities, etc.) combination made.
*An instrument that monitors air flow is called an air flow meter
*Instruments that monitor air pressure are called air pressure sensors
*Instruments that monitor air temperature are called air temperature sensors
air flow meter: Sensor to measure air flow
SenTec supply accurate digital air flow meters at low price cost, industrial air flow meter can be volume flow meter or mass air flow meter. Air or compressed air flow measurement instruments are demanding when customers need control of compressors, blowers, air systems and so on, it could be pure air, combustion air, air Injection.,etc.
SenTe supply several types low cost air flow meter with robust quality:
*Thermal dispersion mass flow meter for air measurement
Direct mass air flow measurement, mass air flow sensor cost is low
No external temperature and pressure compensation to get mass flow
Air flow rater units: g/min,g/s,Kg/min,Kg/h,Nm3/h,Nm3/min,NL/h,NL/min,SCFM
Air total flow meter units: g,Kg,Nm3,NL,CFM flow meter
In line air flow meter or insertion style air flow sensor for large pipe size or duct
Can be used for dirty air flow measurement
*Gas turbine flow meter for air metering
Digital type air flow meter with various outputs and protocol, such as pulse, current
High level accuracy air flow meter
Accommodate the requirements of most gaseous flow sensing applications
Compact size and easy to install
Various sensor size available, such as 1 inch, 2 inch, 3 inch , 4 inch ,6 inch and 8 inch
*Metal tube Rotameter/variable area flow meter for air measurement
Air flow indicator, no any power supply needed or the rotameter can equip with flow transmitter
Reliable technology and high accuracy
Metal tube construction for rugged construction and quality
Vertical direction or horizontal direction rotameter
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Air pressure sensor/gauge:Sensor To Measure Air pressure
Air pressure (also known as air pressure) refers to the force that air acts vertically on the surface of air micelles or a unit area of the surface of an object, and the unit is Pa (Pa).
There is a layer of air around the earth – the atmosphere. The molecules of air are very active, and because of the great attraction of the earth, the air on the surface of the earth will not run away into space. The number of air molecules in the atmosphere increases the closer they are to the ground, and the less they leave the ground. At low altitudes, the number of molecules decreases, the temperature decreases, and the pressure of the atmosphere gradually decreases.
When air moves, the molecules behave differently, so the pressure of the gas changes. When the gas flows, all the air molecules in the flow direction will have a greater impact, and the pressure will increase. This pressure due to the flow of air is called dynamic pressure. The wind force felt on a windy day is the dynamic pressure of the air. When the gas flows in one direction, the average force of the gas molecules impacting in other directions is relatively reduced, and the pressure acting on the surface of the object parallel to the direction of the gas flow is called static pressure. That is to say, the greater the velocity of the gas flow, the greater the dynamic pressure and the smaller the static pressure; conversely, the smaller the velocity, the smaller the dynamic pressure and the greater the static pressure. When the gas does not move, the static pressure is at its maximum.
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Air temperature sensor: Sensor To Measure Air temperature
The air temperature refers to the numerical value of the atmospheric temperature, which reflects the degree of cold and heat of the atmosphere.
The gas temperature sensor is a device for measuring gas temperature. It consists of a temperature sensing module, a transmission module, a zero drift and temperature compensation module, and a 4-20mA module.
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