Title:
PARTICLE SIZE SENSOR
Document Type and Number:
Japanese Patent JP3916201
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a particle size sensor, capable of accurately deciding a particle size, even if a powder concentration changes, in the particle size sensor accurately and rapidly deciding a particle size state by utilizing a scattered light intensity without converting the scattered light intensity into a particle size distribution.
SOLUTION: This particle size sensor has a scattering field 4 for measuring a sample; a laser light source 2 for irradiating the sample led in the scatter field with laser light; a photodetector 6 having plural detection elements for detecting the scattered light intensity of the laser light diffracted and scattered by the sample led in the scatter field; and a data processing means 10 for comparing whether a detection value detected by each the detection element of the photodetector 6 is within a standard range set in each the detection element or not, and outputting a prescribed signal, on the basis of the comparison result. The data processing means 10 changes the standard ranges, according to the concentration of the sample.
Inventors:
Manabu Ohata
Application Number:
JP2000114234A
Publication Date:
May 16, 2007
Filing Date:
April 14, 2000
Export Citation:
Assignee:
NIKKISO CO.,LTD.
International Classes:
G01N15/02; (IPC1-7): G01N15/02
Domestic Patent References:
| JP9101252A | ||||
| JP4172232A | ||||
| JP9257683A |
Attorney, Agent or Firm:
Sadao Enjoji
Motonari Tomisaki
Motonari Tomisaki
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