公开(公告)号：US12270745B1

公开(公告)日：2025-04-08

申请号：US18782044

申请日：2024-07-24

Applicant: NCS Testing Technology Co., Ltd. ,  NCS Jiangsu Testing Technology Co., Ltd.

Inventor： Yunhai Jia ,  Liang Sheng ,  Lei Yu ,  Liangjing Yuan ,  Shanshan Xu

IPC: G01N15/02 ,  G01N15/00

Abstract: A single pulse spectral statistical analysis method for particle size distribution of inclusions on a surface of a metal material is provided. The method includes the following steps: analyzing a surface of an oversized metal material through single pulse discharge continuous excitation scanning to obtain mixed intensity data of spectral intensities of solid solution and inclusions of an inclusion element on the surface of the oversized metal material and a relative frequency distribution diagram; performing peak fitting processing on the relative frequency distribution diagram of the mixed spectral intensities to obtain a relative frequency distribution diagram of the spectral intensities of the inclusion; and correlating particle size information of inclusions of a small sample with distribution data of the spectral intensities of the inclusions to determine a corresponding relation between the particle sizes and the spectral intensities of the inclusions, thereby obtaining a particle size distribution result.

公开(公告)号：US11971349B1

公开(公告)日：2024-04-30

申请号：US18498938

申请日：2023-10-31

Applicant: NCS Testing Technology CO., LTD ,  NCS Jiangsu Testing Technology Co., Ltd.

Inventor： Yunhai Jia ,  Xuehua Wang ,  Liangjing Yuan ,  Danyang Zhi ,  Runpeng Wang ,  Xiaoke Hao ,  Zhenning Wu ,  Wang Chen ,  Zhaodong Guo ,  Xinyang Dong

IPC: G01N21/3504 ,  G01N1/40 ,  G01N1/44

CPC classification number: G01N21/3504 ,  G01N1/4077 ,  G01N1/44 ,  G01N2001/4088

Abstract: The present invention discloses a combined oxygen, nitrogen and hydrogen joint determination device and method based on thermal conductivity-infrared technique. In the device, a melting and extraction system comprises a carrier gas introduction pipeline, a chamber valve, an impulse furnace and a dust filter; an analytical gas transmission system comprises a flush valve, a bypass valve, a mass flowmeter and a first switching valve; a signal detection system comprises an infrared cell, an analysis purification reagent tube and a thermal conductivity cell; and a signal analysis system comprises a controller and a processor. The present invention realizes different joint determination modes by switching different gas paths, which can meet different determination requirements of different users.