公开(公告)号：US08898923B2

公开(公告)日：2014-12-02

申请号：US13706225

申请日：2012-12-05

Applicant: Mitutoyo Corporation

Inventor： Michael Nahum ,  Joseph D. Tobiason ,  Casey E. Emtman

IPC: G01B5/14 ,  G01D21/02 ,  G01L1/00

CPC classification number: G01D21/02 ,  G01B3/205 ,  G01L1/00 ,  G01L1/044 ,  G01L1/2206 ,  G01L5/0038 ,  G01L5/009

Abstract: An electrically powered caliper is provided which includes a scale member, a slider, a displacement sensor, a force sensing arrangement and a signal processing portion. The signal processing portion is configured to receive a force signal and indicate a respective force corresponding to the respective position of the slider. Force data is acquired comprising a plurality of respective forces corresponding to respective positions of the slider. The signal processing portion defines an acceptable measurement force range defined by at least a minimum force threshold that is determined such that it exceeds a compensation force corresponding to at least one force component included in the force signal that is independent of user variations of the measurement force. It may analyze acquired force data to identify pre-contact data, and set the minimum force threshold for a current measurement procedure based on that pre-contact data.

Abstract translation: 提供一种电动卡钳，其包括刻度件，滑块，位移传感器，力感测装置和信号处理部分。 信号处理部分被配置为接收力信号并且指示对应于滑块的​​相应位置的相应力。 获取力数据，其包括对应于滑块的​​相应位置的多个相应的力。 信号处理部分限定由至少最小力阈值限定的可接受的测量力范围，该最小力阈值被确定为使得其超过对应于包括在力信号中的至少一个力分量的补偿力，该力分量独立于测量力的用户变化 。 它可以分析获取的力数据以识别预接触数据，并且基于该预接触数据设置当前测量过程的最小力阈值。

公开(公告)号：US20140150570A1

公开(公告)日：2014-06-05

申请号：US13706225

申请日：2012-12-05

Applicant: MITUTOYO CORPORATION

Inventor： Michael Nahum ,  Joseph D. Tobiason ,  Casey E. Emtman

IPC: G01D21/02

CPC classification number: G01D21/02 ,  G01B3/205 ,  G01L1/00 ,  G01L1/044 ,  G01L1/2206 ,  G01L5/0038 ,  G01L5/009

Abstract: An electrically powered caliper is provided which includes a scale member, a slider, a displacement sensor, a force sensing arrangement and a signal processing portion. The signal processing portion is configured to receive a force signal and indicate a respective force corresponding to the respective position of the slider. Force data is acquired comprising a plurality of respective forces corresponding to respective positions of the slider. The signal processing portion defines an acceptable measurement force range defined by at least a minimum force threshold that is determined such that it exceeds a compensation force corresponding to at least one force component included in the force signal that is independent of user variations of the measurement force. It may analyze acquired force data to identify pre-contact data, and set the minimum force threshold for a current measurement procedure based on that pre-contact data.

Abstract translation: 提供一种电动卡钳，其包括刻度件，滑块，位移传感器，力感测装置和信号处理部分。 信号处理部分被配置为接收力信号并且指示对应于滑块的​​相应位置的相应力。 获取力数据，其包括对应于滑块的​​相应位置的多个相应的力。 信号处理部分限定由至少最小力阈值限定的可接受的测量力范围，该最小力阈值被确定为使得其超过与包括在力信号中的至少一个力分量相对应的补偿力，该力分量独立于测量力的用户变化 。 它可以分析获取的力数据以识别预接触数据，并且基于该预接触数据设置当前测量过程的最小力阈值。