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Motion state of impacting and impacted object measuring apparatus and method

  • US 8,959,981 B2
  • Filed: 01/26/2012
  • Issued: 02/24/2015
  • Est. Priority Date: 01/26/2011
  • Status: Active Grant
First Claim
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1. A measurement apparatus comprising:

  • a first Doppler sensor which outputs a first transmission signal and receives a first Doppler signal, that is the first transmission signal returned after being reflected by an impacting object;

    an impact timing detection unit that detects an impact timing, that is a moment when an impacted object is impacted by the impacting object;

    an impacting object speed computing unit that computes a speed of the impacting object based on the first Doppler signals obtained between the detected impact timing and a previous timing before a predetermined period;

    an image timing determination unit that determines a first imaging timing and a second imaging timing that capture images, based on the computed speed of the impacting object; and

    an imaging unit that capture the images that contain the impacted object immediately after the impact and is used for computing a motion state of the impacted object, according to the determined imaging timings.

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