Title:
DISPLACEMENT SENSOR
Document Type and Number:
Japanese Patent JP2022134385
Kind Code:
A
Abstract:
To provide a displacement sensor that can reduce adjustment time.SOLUTION: A displacement sensor 10 comprises: a light projection unit 11 that includes a light projection element 11a; a light reception unit 12 that includes an image sensor 12a; a control unit 13; and a storage unit 14. The light reception unit outputs an image signal S12 corresponding to reflected light L2 that is reflected from a detected object W and received by the image sensor 12a. The control unit 13 executes feedback control for adjusting an operation amount including at least one of a light projection amount of the light projection element 11a and a reception amount of the image sensor 12a, on the basis of the light reception level of the image signal S12 outputted by the light reception unit. The control unit 13 executes the feedback control when the light reception level is within a first range. The control unit 13 adjusts the operation amount by a first or second adjustment value stored in the storage unit 14 when the light reception level is equal to or more than a specified value X1 that is above the first range, or the light reception level is equal or less than a specified value X2 that is below the first range.SELECTED DRAWING: Figure 1
Inventors:
SANO MASATO
ONO SHINJI
NAKAMURA RYOKO
ONO SHINJI
NAKAMURA RYOKO
Application Number:
JP2021033477A
Publication Date:
September 15, 2022
Filing Date:
March 03, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
G01B11/00
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda