Title:
コンシステンシーを測定するための方法、チョッパー構造体、及びコンシステンシー・メーター
Document Type and Number:
Japanese Patent JP4721170
Kind Code:
B2
Abstract:
The method measures consistency with a rotating consistency meter. The method comprises chopping with the teeth of a chopper structure optical radiation transmitted by an optical source to an optical detector while the shafts of the rotating consistency meter rotate. In addition, a chopper reference of the chopper structure chops optical radiation to form at least one reference pulse independent of the swivel between the shafts. The duration of each reference pulse is measured when measuring consistency. The change in the reference pulse is defined by comparing the duration of the measured reference pulse with the duration of the predefined reference pulse. The durations of the measuring pulses are corrected according to the change in the duration of the reference pulse.
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Inventors:
Lauri Ushiwirta
Yuhani Cangas
Yuhani Cangas
Application Number:
JP2008508246A
Publication Date:
July 13, 2011
Filing Date:
April 27, 2006
Export Citation:
Assignee:
Metso Automation Oy
International Classes:
G01N11/14; G01N11/16; G01N11/00
Domestic Patent References:
| JP2001520742A | ||||
| JP2001519914A |
Foreign References:
| GB2206205A | ||||
| US4590806 | ||||
| US3572086 | ||||
| US20030010137 |
Attorney, Agent or Firm:
Calyx
Miyazaki Yoshio
Kaoru Onozuka
Akio Tagami
High Masahiro
Tsutomu Kato
Miyazaki Yoshio
Kaoru Onozuka
Akio Tagami
High Masahiro
Tsutomu Kato