Title:
近赤外線水分センサのための較正基準としての酸化ホルミウムガラス
Document Type and Number:
Japanese Patent JP6771498
Kind Code:
B2
Abstract:
Near infrared moisture sensors using stable holmium oxide glass calibration standards that simulate different moistures levels in paper obviates problems associated with glass encased paper samples. Holmium oxide glass has a strong absorption at 1.93 microns which is close to absorption by paper. Standards can have varying thicknesses to simulate different moisture levels. Didymium glass can also be used with holmium oxide glass. The moisture sensor operates at reference and measurement infrared regions of 1.94 microns and 1.8 microns, respectively.
Inventors:
Tikiche, Sebastian
Application Number:
JP2017568128A
Publication Date:
October 21, 2020
Filing Date:
August 24, 2016
Export Citation:
Assignee:
Honeywell Limited
International Classes:
G01N21/3554; D21F9/00
Domestic Patent References:
| JP63298030A | ||||
| JP11230819A | ||||
| JP54105543U | ||||
| JP6161623B2 | ||||
| JP59085946A | ||||
| JP8136453A | ||||
| JP2008298776A |
Foreign References:
| WO1996032631A1 | ||||
| US20150177155 | ||||
| US6078042 | ||||
| US3205355 | ||||
| US20050073690 | ||||
| US20090184257 |
Attorney, Agent or Firm:
Shinjiro Ono
Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Shogo Nakamura
Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Shogo Nakamura