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1. 发明申请

US20070250294A1 Operating Frequency Selection Method for Hardness Measurement System, Operating Frequency Selection Apparatus, and Hardness Measurement System 失效
标题翻译：硬度测量系统的工作频率选择方法，工作频率选择装置和硬度测量系统
公开(公告)号：US20070250294A1
公开(公告)日：2007-10-25
申请号：US11547446
申请日：2004-12-13
申请人： Sadao Omata , Yoshinobu Murayama , Katsuhito Honda
发明人： Sadao Omata , Yoshinobu Murayama , Katsuhito Honda
IPC分类号： G06F19/00
CPC分类号： G01N29/11 , G01N3/405 , G01N29/12 , G01N2203/0623 , G01N2291/02827
摘要： The selection of an operating frequency is further facilitated in a hardness measurement system for measuring the hardness of an object using a phase shift circuit. A hardness sensor is connected to an operating frequency selection apparatus and in a free end state the amplitude versus frequency characteristic is acquired, and the frequency and the phase of the peaks are measured and acquired as the free end characteristic (S10-S20). Next, the hardness sensor is placed into contact with a first test piece, and the frequency and the phase that change for the peaks are measured and acquired as the first characteristic (S22-S28). The same procedure is performed for a second test piece that is harder than the first test piece to yield the second characteristic (S30-S36). On the basis of these characteristics, the selection of a peak suitable for hardness measurement is performed on the basis of a predetermined selection criterion and the operating frequency is set from the frequency of the peak.
摘要翻译：在使用相移电路测量物体的硬度的硬度测量系统中进一步促进了对工作频率的选择。将硬度传感器连接到工作频率选择装置，并且在自由端状态下获取幅度 - 频率特性，并且测量并获取峰值的频率和相位作为自由端特性（S 10 -S 20）。接下来，将硬度传感器与第一测试件接触，并且测量并获取峰值变化的频率和相位作为第一特性（S 22 -S 28）。对于比第一测试件更硬的第二测试件执行相同的步骤以产生第二特性（S 30 -S 36）。基于这些特性，基于预定的选择标准进行适合于硬度测量的峰值的选择，并根据峰值的频率设定工作频率。

2. 发明授权

US07565841B2 Operating frequency selection method for hardness measurement system, operating frequency selection apparatus, and hardness measurement system 失效
标题翻译：硬度测量系统的工作频率选择方法，工作频率选择装置和硬度测量系统
公开(公告)号：US07565841B2
公开(公告)日：2009-07-28
申请号：US11547446
申请日：2004-12-13
申请人： Sadao Omata , Yoshinobu Murayama , Katsuhito Honda
发明人： Sadao Omata , Yoshinobu Murayama , Katsuhito Honda
IPC分类号： G01N29/00 , G01N3/48
CPC分类号： G01N29/11 , G01N3/405 , G01N29/12 , G01N2203/0623 , G01N2291/02827
摘要： In a hardness measurement system, selecting an operating frequency is facilitated by using a phase shift circuit. A hardness sensor is connected to an operating frequency selection apparatus and in a free end state the amplitude versus frequency characteristic is acquired, and the frequency and the phase of the peaks are measured and acquired as the free end characteristic. Next, the hardness sensor is placed into contact with a first test piece, and the frequency and the phase that change for the peaks are measured and acquired as the first characteristic. The same procedure is performed for a second test piece that is harder than the first test piece to yield the second characteristic. Based on these characteristics and a predetermined selection criterion a peak suitable for hardness measurement is selected and the operating frequency is set from the frequency of the peak.
摘要翻译：在硬度测量系统中，通过使用相移电路便于选择工作频率。将硬度传感器连接到工作频率选择装置，并且在自由端状态下获取幅度与频率特性，并且测量并获取峰值的频率和相位作为自由端特性。接下来，将硬度传感器与第一测试件接触，并且测量并获取峰值变化的频率和相位作为第一特性。对于比第一测试件更硬的第二测试件执行相同的过程以产生第二特性。基于这些特性和预定的选择标准，选择适合于硬度测量的峰值，并根据峰值的频率设定工作频率。

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