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|Table of Contents|

雾化喷头试验台测试精度分析(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2013年06期
Page:
137-141
Column:
研究论文
publishdate:
2013-11-27

Article Info:/Info

Title:
Test accuracy analysis of atomizing nozzle test bed
Article ID:
1000-2006(2013)06-0137-05
Author(s):
WU Xiaowei12 ZHOU Hongping1* XU Linyun1 RU Yu1
1.College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China;
2. Jiangsu Agricultural Machinery Technology Extension Station, Nanjing 210017, China
Keywords:
atomization nozzle test-bed nozzle parameters pressure sensor flow sensor
Classification number :
S491
DOI:
10.3969/j.issn.1000-2006.2013.06.027
Document Code:
A
Abstract:
In order to improve testing precision of test bed and the test accuracy of atomizing nozzle test bed be researched. Firstly, reference nozzle parameters were calibrated, and then, the measurement accuracy of pressure sensors and flow sensors were calibrated. Based on the calibration, the test errors of distributions of test bed was analyzed, finally, inspect the test-bed through amendment value. Through calibration can draw: At different pressures, the maximum error between the atomizing nozzle testing value and the reference value is 2.70%. The correction value of pressure sensor is 0.01 MPa. The error between the average flow sensor measuring and reference value is 1.2%. Under the same pressure, the maximum error between the average flow value of test-bed and reference value is 2.84%. The measuring errors become decreases with the measuring time increase. When measure time reaches to 200 s, the error basically stable, the maximum error is 0.8%. Through testing of amendment test system can found that the maximum error between the measurements of test-bed and reference values is 0.7%, showing that the test-bed can meet high-accuracy measurement requirements.

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Last Update: 2013-11-30