Ear-type thermometer and a control method thereof

  • US 8,126,672 B2
  • Filed: 09/25/2009
  • Issued: 02/28/2012
  • Est. Priority Date: 03/26/2007
  • Status: Expired due to Fees
First Claim
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1. An ear-type thermometer having a probe formed with a probe opening at its tip which houses a temperature detection element which detects ambient temperature and an infrared detection element which detects infrared light emitted from a temperature measurement site within the aural cavity, and measures body temperature based on detection results from said two detection elements, the ear-type thermometer comprising:

  • a probe cover which can be detachably provided onto said probe and covers said probe opening;

    a detection means which detects attachment/detachment of said probe cover onto said probe; and

    a correction means which corrects, based on the detection result of said detection means, body temperature which is measured based on detection results of said two detection elementswherein;

    said correction means performs temperature correction which calculates correlation coefficient between detected temperature signal based on the detection results of said two detection elements and actual body temperature signal based on actual body temperature, andsaid correction means also performs temperature conversion using a first temperature conversion coefficient calculated by applying said temperature correction in a state without said probe cover and a second temperature conversion coefficient calculated by applying said temperature correction in a state with said probe cover.

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