公开(公告)号：US20180372624A1

公开(公告)日：2018-12-27

申请号：US16065892

申请日：2017-02-20

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takeshi FUJIYAMA ,  Yuuji TERASHIMA

IPC: G01N21/3554 ,  A01G27/00

Abstract: A threshold level setter/water content index detector calculates an ΣLn (I905/I1550) which is a total sum of the reflection intensity ratio as a water content index of one leaf. A controller displays a graph representing the time-transition of the water content contained in the leaf of the plant from the start to the end of the measurement period on a UI screen of monitor 50. The controller fixedly determines and sets, as a leaf, a set of reflection positions where the water content for each reflection position which is calculated at the start of the measurement period exceeds a threshold level. When viewed from first beam source and second beam source, white reference substrate which covers a back surface of the leaf of the plant is disposed on the leaf of the plant.

公开(公告)号：US20170261426A1

公开(公告)日：2017-09-14

申请号：US15506065

申请日：2015-07-22

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Keiji HIRATA ,  Yuuji TERASHIMA ,  Kazuhiro YANAGI

IPC: G01N21/31 ,  G01N21/35 ,  G01V8/10 ,  G01N21/27

CPC classification number: G01N21/3151 ,  B60T2210/10 ,  G01N21/256 ,  G01N21/27 ,  G01N21/35 ,  G01N21/47 ,  G01N2021/1793 ,  G01N2021/3155 ,  G01N2201/101 ,  G01S17/10 ,  G01S17/42 ,  G01S17/88 ,  G01V8/10

Abstract: A substance detection sensor includes a first light source, a second light source, and a substance detector. The first light source irradiates a detection area including a plurality of target areas with reference light having a first wavelength through surface irradiation using optical scanning. The second light source irradiates the detection area with first measuring light having a second wavelength different from the first wavelength through the surface irradiation using the optical scanning. The substance detector detects a specific substance in the detection area based on reflection light of the reference light from the first light source and reflection light of the first measuring light from the second light source.