System and method for testing performance of cross flow fan

A cross-flow fan and testing system technology, which is used in the testing of machine/structural components, measuring devices, and measuring fluid velocity using differential pressure to achieve the effects of reliable measurement data, improved labor environment, and improved efficiency.

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A cross-flow fan and testing system technology, which is used in the testing of machine/structural components, measuring devices, and measuring fluid velocity using differential pressure to achieve the effects of reliable measurement data, improved labor environment, and improved efficiency.

CN101710030AInactive Publication Date: 2010-05-19CHANGSHA UNIVERSITY

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[0035] The invention includes a host computer, a single-chip microcomputer measurement and control system and a sensor system.

[0036] The sensor system includes speed sensor, wind speed sensor, temperature sensor, pressure sensor, torque sensor and noise measurement sensor, which converts various parameters such as speed, wind speed, temperature, pressure, torque and noise required for performance testing into electrical signals.

[0037] The single-chip microcomputer measurement and control system takes AT89S52 single-chip microcomputer as the core, mainly including analog / digital conversion circuit, signal amplification circuit, current-voltage conversion circuit, serial communication circuit, watchdog circuit and power supply circuit. Complete the conversion and processing of data, and send the data to the host computer for processing through the serial port.

[0038] After the test process starts, the temperature, wind speed and other sensors realize the real-time collec...

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Abstract

The invention discloses a system and a method for testing the performance of a cross flow fan. The system comprises a sensor system, a single chip testing and control system and a computer, wherein the sensor system comprises a fan rotating speed sensor, a fan air speed sensor, an air temperature sensor, an atmospheric pressure sensor, a fan dynamic pressure sensor, a fan static pressure sensor, a fan torque sensor and a noise measurer; the sensors and the measurer of the sensor system are used for outputting electric signals connected with the single chip testing and control system; the single chip testing and control system uses a single chip as a core for converting and processing data; and finally the data are transmitted into a host computer for processing and displaying by a serial port. The invention has the advantages of various automatic testing functions, strong adaptability, simple operation, convenient maintenance, higher reliability and higher accuracy.

Description

technical field [0001] The invention relates to a measuring method and device, in particular to a performance testing system and method of a cross-flow fan. Background technique [0002] The experimental study of the cross-flow fan began in France and was invented by Mortier in France in 1892. At the beginning, it was only used for mine ventilation. In the 1950s, the cross-flow fan attracted people's attention, and its research and application entered a new stage. my country's test and research on cross-flow fans began in the 1970s. In the 1980s, scholars from Luoyang Institute of Technology, Northeast Agricultural College and other units conducted special research on cross-flow fans, which played a role in the design and application of cross-flow fans in my country. Works great. [0003] Compared with centrifugal fans and axial flow fans, cross flow fans have the characteristics of simple structure, small size, stable air flow, high dynamic pressure coefficient, long worki...

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Application Information

Patent Timeline

19 May 2010

Publication

CN101710030A

IPC: G01M19/00; G01D21/02; G01P5/16; G01M99/00

Inventors: 刘辉; 庞佑霞