An Air Flow Meter is the flow meter that measures industrial air velocity. Most of the time, people talk about air flow meters means compressed air flow meters. We are discussing here all air flow meters, including compressed air flow meters.
Compressed Air Flow Meter, is the digital flow meter work for the air compressor. Air consumption is important info for industrial inline gas flow pipes. According to the measurement conditions, a compressed air flow meter could be of different types. Thermal mass flow meters, Ultrasonic flow meters, vortex flow meters, Turbine flow meters. And the differential pressure flow meters (Orifice plate ) are also suitable for compressed air. With the Pressure and Temperature compensation. Sino-Inst’s compressed air flow meters are more affordable and complete.
The Carmen vortex refers to the placement of a cylindrical or triangular object in the fluid. Two rows of vortices with opposite rotation directions will be generated downstream of this object.
An ultrasonic transmitting probe and a receiving probe are oppositely installed on both sides of the downstream pipeline of the Carmen vortex generator. Due to the influence of the Carmen vortex on the air density, the time from the transmitting probe to the receiving probe of the ultrasonic wave becomes later than that of the non-vortex and a phase difference occurs. By processing this phase signal, a vortex pulse signal can be obtained.
The working principle of the hot film type air flow meter is similar to that of the hot wire type air flow meter, and they all work with Wheatstone bridge. The difference is that the hot film type does not use platinum wire as a hot wire. But uses a thick film process to make the hot wire resistance, compensation resistance, and bridge resistance on the same ceramic substrate.
In the process of generating the Carmen vortex, the air pressure on both sides of the vortex generator will change. The pressure acts on the metal foil through the pilot hole, causing it to vibrate. When light from a light-emitting diode strikes a vibrating metal foil. The reflected light on the metal foil received by the phototransistor is vortex-modulated light. And its output is demodulated to obtain a frequency signal representing the air flow.
When no air flows, the bridge is in equilibrium. The control circuit outputs a certain heating current to the hot wire resistance RH. When there is air flowing, the heat of RH is absorbed by the air and becomes cold. Its resistance value changes. The bridge loses Balance. If the temperature difference between the hot wire resistance and the intake air is kept constant and constant, the current IH flowing through the hot wire resistance must be increased. Therefore, the hot-wire current IH is a function of the mass air flow.
The vane type air flow meter has a simple structure and high reliability. Yet, it has a large volume, large intake resistance and slow response.
CFM is a common imperial flow unit, cubic feet per minute. For a certain volume of air flow passing in a unit time, m3/h air volume unit is generally used in China. Other countries also use the British air volume unit cfm (cubic foot per minute). That is ft3/min cubic feet/minute, 1CFM=28.316846592 L/MIN=0.028316847 m3/min
CFM traffic is divided into SCFM and ACFM.
Inline air flow meter scfm
SCFM English standard cubic foot per minute means standard cubic foot per minute, British flow unit. Both ACFM & SCFM are units of measurement for English flow ACFM=actual flow rate ft^3/min
What Is Digital Air Flow Meters? The digital air flow meter is also a digital gas flow meter. The digital air flow meter can measure and display parameters such as mass flow, volume flow, gas temperature, atmospheric pressure and gas Read More
Air mass flow meter (abbreviated as MFM) is used for precise measurement of gas mass flow.A gas mass flow controller (abbreviated as MFC) is used for precise measurement and control of gas mass flow. Related products What is a mass Read More
Karman vortex air flow sensor is a commonly used flow meter for measuring air. Karman vortex air flow sensor is also called vortex shedding flow meter. What is a Karman vortex air flow sensor? Karman vortex air flow sensor is Read More
Featured Inline Air Flow Meters Inline air flow meter units conversion Inline air flow meter cfm CFM is a common imperial flow unit, cubic feet per minute.For a certain volume of air flow passing in a unit time, m3/h air Read More
Compressed air flow meter is a upgraded and improved gas vortex flow meter. The karman vortex air flow sensor is researched and produced according to the Karman vortex principle. Features of Vortex Compressed Air Flow Meter Easy to install. Suitable Read More
What is air flow meter? An Air Flow Meter is the flow meter that measures industrial air velocity. Most of the time, people talk about air flow meters means compressed air flow meters. We are discussing here all air flow Read More
Compressed Air Flow Meter, is the digital flow meter work for the air compressor. Air consumption is an important info for industrial inline gas flow pipe. According to the measurement conditions, compressed air flow meter could be different types. Thermal Read More
The gas mass flow controller is based on the principle of thermal mass flow measurement. With control valve. The Micro Gas Flow Controller (MFC) is used to precisely measure and control the mass flow of gas. Guess you like: Gas Read More
Sino-Inst offers a variety of Digital gas flow meters for flow measurement. If you have any questions, please contact our sales engineers. Featured Digital gas flow meters for Sale Are you looking for a flow meter for measuring gas volume Read More
Oxygen Flow Meters are digital flow meters that can measure industrial oxygen. It is very important to choose a suitable flow meter to measure and monitor the oxygen flow. Sino-Inst offers a variety of Industrial Oxygen Flow Meters for flow Read More
CO2 flow meters are instruments that can measure the flow of gaseous or liquid carbon dioxide. CO2 is a common industrial gas, and effective measurement is very important. Sino-Inst offers a variety of CO2 flow meters for flow measurement. If Read More
Biogas Flow Meters are instruments that can measure the flow of biogas. Could be a vortex flow meter, thermal mass flow meter, etc. Commonly used in biogas stations, biogas production fermentation tanks, etc. Sino-Inst offers a variety of Biogas Flow Read More
LPG flow meter is used for flow measurement of liquefied petroleum gas. The flow measurement of LPG is very important in industrial production, transportation and trade settlement. Sino-Inst offers LPG/propane gas flow meter at competitive low price from China gas Read More
Air flow meter price
The price of AIR flow meters are decided by flollowing factors:
Important factors when selecting flow metering devices are
flow rate range
These factors are more or less related to each other. Example – the cost of flow meters increases with accuracy and lifetime quality.
What is an air flow meter called?
An airflow meter is a device that converts the inhaled airflow into electrical signals. Airflow meter is also often called gas flow meter, air mass flow meter, compressed air flow meter, etc. Know more about Air flow meter From Wikipedia.
Sino-Instrument offers over 50 flow meter for flow measurement.