摘要(英) |
Capacitive sensor is a device that convert the physical variation into capacitance variation, which has the advantages of small volume, low power consumption and high sensitivity. The common structure is composed of two parallel conductive plane. In this paper, we utilized the characteristics of
capacitance to develop a liquid pollution sensor for electrical discharge machining liquid measurement. In conclusion, we successfully measured dielectric materials such as alumina and silicon powder, and the measured concentration range is 5 g/100 ml to 50 g/100 ml. Also, we successfully measure iron powder and carbon powder, and the minimum of iron powder concentration is 1.2 g/100 ml, while the minimum of carbon powder concentration is 0.25 g / 100 ml. In addition to the concentration sensor of liquid, this paper also developed intelligent Bluetooth transmission function. The sensing data will be transmitted to the clouds for the storage of big data and enhance the value of the sensor. |
參考文獻 |
[1] S. F. Krar, and A. R. Gill, “Exploring Advanced Manufacturing Technologies,”
Industrial Press Inc. 2003
[2] G. Z. Sauerbrey, ”Use of quartz crystal units for weighing thin films and microweighing,” Magzine for Physics, vol. 155, no. 2, pp. 206-222, 1959
[3] P. L. Konash, and J. B. Glenn, ”Piezoelectric crystals as detectors in liquid chromatography.” Analytical Chemistry, vol. 52, no. 12, pp. 1929-1931, 1980.
[4] 楊家建,施正純,「飲用水濁度測量技術及應用」,水工業市場,第 6 期,
25-29 頁,2010 年。
[5] I. Evans, and T. York, ”Microelectronic capacitance transducer for particle
detection.” IEEE Sensors journal, vol. 4, no. 3, pp. 364-372, 2004
[6] M. Carminati, L. Pedalà, E. Bianchi, F. Nason, G. Dubini, L. Cortelezzi, G.
Ferrari, and M. Sampietro, ”Capacitive detection of micrometric airborne particulate matter for solid-state personal air quality monitors.” Sensors and Actuators A: Physical, vol.219, pp. 80-87, 2014
[7] C. Elbuken, T. Glawdel, D. Chan, and C. L. Ren, ”Detection of microdroplet size and speed using capacitive sensors.” Sensors and Actuators A: Physical,
vol. 171, no. 2, pp. 55-62, 2011
[8] 蔡博存,可攜式 PM2. 5 感測系統之開發,國立臺灣大學,碩士論文,
2014。
[9] W. D. Greason (1992). “Electrostatic discharge in electronics”. Research Studies Press. p. 48. ISBN 978-0-86380-136-5. Retrieved 4 December 2011.
[10] 彭信文,電容式液面控制器之研製,逢甲大學,自動控制工程學系專題
製作
[11] L. Jylhä, and A. Sihvola, ”Equation for the effective permittivity of particlefilled composites for material design applications.” Journal of Physics D: Applied Physics, vol. 40, no. 16, pp. 49-66, 2007
[12] K. Wakino, ”A new proposal on mixing rule of the dielectric constant of mixture.” Applications of Ferroelectrics, 1994. ISAF′94., Proceedings of the Ninth IEEE International Symposium on. IEEE, 1991.
[13] B. Harris. “University physics”. John Wiley & Sons, 2008.
[14] 廖智賢,微電容感測與量測,逢甲大學,自動控制工程學系專題製作
[15] 網 路 資 料 ︰ 橋 式 電 路 。 2017 年 6 月 5 日 , 取 自
https://read01.com/DnOBJ5.htm。
[16] 邱桂苹,于晓洋和陈德运,微小电容测量电路,黑龙江电力,第二十八
卷第五期,362-366 頁,2006 年
[17] 游太平,淺談觸媒積碳現象,石油季刊,第四十卷第一期,59-65 頁,
2004 年。 |