Flexural-rigidity measuring apparatus and method for measuring flexural rigidity
AssigneeFUJIFILM Business Innovation Corp.
InventorMasao Omori
Life of this patent
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Abstract
A flexural-rigidity measuring apparatus includes an ultrasonic device including an oscillating unit that oscillates an ultrasonic wave toward a sheet and a receiving unit that receives the ultrasonic wave that has passed through the sheet, an electromagnetic induction device including an electromagnetic induction unit that generates electromagnetic induction with respect to a sheet, and a near-infrared spectroscopic device including a light-emitting unit that emits near-infrared light toward a sheet and a light-receiving unit that receives the near-infrared light that has passed through the sheet.
Claims14
A flexural-rigidity measuring apparatus comprising:
- an ultrasonic device including an oscillating unit that oscillates an ultrasonic wave toward a sheet and a receiving unit that receives the ultrasonic wave that has passed through the sheet;
- an electromagnetic induction device including an electromagnetic induction unit that generates electromagnetic induction with respect to a sheet;
- and
- a near-infrared spectroscopic device including a light-emitting unit that emits near-infrared light toward a sheet and a light-receiving unit that receives the near-infrared light that has passed through the sheet.
A flexural-rigidity measuring apparatus comprising:
- a first acquisition unit that acquires a basis weight of a sheet;
- a second acquisition unit that acquires a thickness of a sheet;
- and
- a near-infrared spectroscopic device including a light-emitting unit that emits near-infrared light toward a sheet and a light-receiving unit that receives the near-infrared light that has passed through the sheet.
A method for measuring flexural rigidity comprising:
- oscillating an ultrasonic wave toward a sheet and receiving the ultrasonic wave that has passed through the sheet;
- generating electromagnetic induction with respect to a sheet;
- and
- emitting near-infrared light toward a sheet and receiving the near-infrared light that has passed through the sheet.
Dependencies are inferred from the claim text.