A mass flow controller automatically regulates the flow rate according to a set flow rate sent as an electric signal without being affected by use restraints or variations in gas pressure. Flow rates can be roughly split into two kinds: volumetric flow and mass flow. Volumetric flow measurement is affected by ambient temperature and pressure. The pressure and temperature conditions need to be pressure states to see the true flow, giving much more reliable and stable flow analysis and control. Our mass flow controller is used in various industrial fields as a basic tool when accurate control of flow rates is needed or an automated production line is built.
Structure and operating laws
A flow controller has a flow rate measurement section that includes a sensor, bypass, flow control valve, and special systems.
The gas is input from an Inlet joint and is split to flow over both the flow rate sensor and a bypass. The sensor holds the flow rate of the gas, and the flow rate regulator valve changes the flow rate so that the contrast between the restrained flow rate and the flow rate drawn from the outward flow rate setting sign is 0.
The units highlight a loop circuit, so even if there is a trivial pressure variation or ambient temperature change that could change the supply pressure of the added gas, the flow rate is promptly fixed, which assures constant flow rate control.
- The gas enters from the gulf, first divides to flow past the sensor or by the bypass.
- At the sensor, the flow rate is recognized as an equal change in temperature and changed by the bridge circuits to an electrical sign.
- This signal moves by the addition and correction circuits and is a product of a linear voltage between 0 to 5V. At the same time, it is also given to the contrast control circuits.
Characteristics of Mass flow controller
The Digital Flow Controller is shown in the picture above.
This flow controller has a flow rate analysis section covering a sensor, bypass, flow rate control valve, and special wiring. In addition, a CPU is part of the wiring, which performs it both multi-functional and highly effective.
The units feature a loop circuit, so even if there is a trivial pressure change or ambient temperature variation that could influence the supply pressure of the proposed gas. The flow rate is directly fixed, which assures constant flow rate control.
Structure or Operating principle
The LV-F series of flow controllers are related to the LF-F series of mass flow meters. Though, they have a piezo actuator valve and an inner contrast control circuit. They relate the flow rate setting sign and the flow rate output sign and automatically check the valve opening to suit the two signs. Since they use a feedback controller system, there are no flow rate differences due to outer aspects, and, therefore, durable, precise control is possible. In addition, a piezo actuator valve is stable and does not produce heat, as the control valve makes these units is perfect for flow control of fluids with low boiling points.
Also, You Can Read:- Method and Technology of Thermal Liquid Mass Flow Meter
Thus, A mass flow controller regulates the flow rate according to a set flow rate given as an electric sign without being harmed by use restrictions or variations in gas pressure. At proteus, you will get excellent quality appliances that will be assured with a warranty. Our products are safe to use and are highly advanced. They make the work easy for the operator.
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