Flow sensing device

• Main Author: KUNYUAN HUANG
• Format: Patent
• Language: English
• Published: 13.08.2003
• Edition: 7
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The utility model relates to a flow sensing device. Both ends of a main body are respectively provided with a first accommodating chamber and a second accommodating chamber, wherein, the main body is penetrated into a pipeline from one end of the second accommodating chamber. Besides, the inside of the second accommodating chamber connected to the pipeline is provided with a rotary impeller; the impeller is provided with a plurality of blades; the blades arranged on one side of the impeller are exposed out the main body; at least one blade is provided with a magnet. At least one sensing unit group is arranged in the first accommdating chamber of the main body. The utility model utilizes the sensing unit group to sense the magnetic variation of the blades through the rotation of the blades driven by water flow so as to make the sensing unit group output signals. Thus the utility model is convenient to carry out display operations, such as subsequent comparasion, calculation, etc. The utility model can improve the rotary sensitivity of the blades and effectively increase the measuring accuracy of the flow sensing device. Besides, the utility model can reduce failures caused by foreign object intrusion.