公开(公告)号：US11656214B2

公开(公告)日：2023-05-23

申请号：US17348804

申请日：2021-06-16

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Nam Goo Kang

IPC: G01N33/00

CPC classification number: G01N33/007

Abstract: Disclosed herein is a quantifying method of uncertainty of measured value by close match span calibration of measuring sensor comprising a step of:



a quantifying using below equation I.













u
c

(

x
bag

)

≃




[


1

f
cyl


⁢

u
⁡
(

R
bag

)


]

2

+


[


1

f
cyl


⁢

u
⁡
(

R
cyl

)


]

2

+


u
2

(

x
cyl

)







(
I
)









wherein, uc is a combined standard uncertainty, Xbag is a measured value of a test, xcyl is standard value, fcyl is standard response factor (sensitivity coefficient), Rbag is a signal value of a test, represents xbag·fbag, Rcyl represents xcyl·fcyl, and u is standard uncertainty.

公开(公告)号：US11105470B2

公开(公告)日：2021-08-31

申请号：US16477017

申请日：2018-01-16

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Nam Goo Kang ,  Sang Hyub Oh

IPC: F17C13/02 ,  G01F1/34

Abstract: The present invention relates to a method for determining loss of gas in a gas container. According to an embodiment of the present invention, the method for determining the loss of gas in the gas container is characterized by including the steps of (a) filling a first container (10) with a component gas and a balance gas, (b) measuring a gas pressure inside the first gas container (11), (c) allowing the first gas container and a second gas container having an evacuated inside to communicate and performing a first-stage gas pressure split, and (d) measuring a gas pressure inside the second gas container, wherein an amount of the component gas adsorbed inside the gas container is calculated through a difference between a measured value of step (b) and a measured value of step (d) and is determined as an amount of gas loss.