硬质合金磁饱和测量的高精度数据处理方法

doi:10.3969/j.issn.1000-1158.2016.03.17

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Abstract A high precision of data processing method of magnetic saturation measurements on cemented carbides was designed and verified, including digital filtering, digital integration, data fitting, zero setting and system compensation, etc. The finite impulse response digital filter is used for filtering which is based on window function. The digital integration algorithm is based on Newton-Cotes integration, data fitting is based on the improved least square method, and system calibration used zero setting for the first time and compensate for negative value. Compared to the traditional data processing method of magnetic saturation measurements on cemented carbides, this method has some advantages, such as results with high precision and good repeatability.

Key words： metrology magnetic saturation digital filtering digital integration data fitting

Received: 11 July 2014 Published: 22 March 2016

PACS:

TB972

Corresponding Authors: Xing-Yuan WU E-mail: wuxingyuan66@126.com

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	WU Xing-yuan
	SU Juan
	WANG Teng-fang

Cite this article:

WU Xing-yuan,SU Juan,WANG Teng-fang. A precision data processing method of magnetic saturation measurements on cemented carbides[J]. Acta Metrologica Sinica, 2016, 37(3): 306-309.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2016.03.17 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2016/V37/I3/306