 Intelligent system for generating and executing a sheet metal bending plan |
| In view of the above, the present invention, through one or more of its various aspects and/or ... |
|
| Method for planning/controlling robot motion |
| In view of the above, the present invention, through one or more of its various aspects and/or ... |
|
| Method and apparatus for a thermal protection unit |
| What is claimed is: 1. An apparatus for managing operations of a circuit which executes a sequence ... |
|
| Electric power system protection and control system |
| It is an object of the present invention to provide a system which performs correlation processing ... |
|
| Distributed logic in multiple protective relays |
| The present invention overcomes the disadvantages of prior solutions, and achieves additional ... |
|
| Portable flat display adaptor |
| OF THE INVENTION Preferred embodiments of the invention applying a device adaptor to a generic F... |
|
| Process for controlling blending |
| OF THE INVENTION This invention is a process of controlling the value of at least one ... |
|
|
Device for detecting hydrogen concentration and method of detecting hydrogen concentration
| Details |
Inventors: Sano, Yukihiro; Takeuchi, Yukihiro; Abe, Yositugu;
Assignee: Denso Corporation (Kariya, JP)
Primary Examiner: Tsai; Carol S. W.
Assistant Examiner:
Attorney, Agent or Firm: Harness, Dickey & Pierce, PLC
The method of detecting the hydrogen concentration by using a first heat-generating resistor of which a first electrophysical quantity varies depending upon the hydrogen concentration and a second heat-generating resistor which is neighboring said first heat-generating resistor in a direction of gas flow and of which a second electrophysical quantity varies depending upon the hydrogen concentration as does the first electrophysical quantity, to detect the concentration of hydrogen based on the first electrophysical quantity and the second electrophysical quantity, the method comprising: calculating the amount of change in a target physical quantity, which is either the first electrophysical quantity or the second electrophysical quantity, calculating the correction amount based on a difference between the first electrophysical quantity and the second electrophysical quantity, and a calculating the concentration of hydrogen based on a difference between the amount of change in the target physical quantity and the correction amount. |
|
DETAILED DESCRIPTION It is, therefore, an object of the present invention to provide a device, for detecting hydrogen concentration, which provides high precision detection and a method thereof.
According to the invention described in claims 1 to 20, first and second electrophysical quantities, in first and second heat-generating resistors that vary depending upon the hydrogen concentration, also undergo a variation depending upon the flow of gas around the first and second heat-generating resistors.
Therefore, the amounts of change in the first and second electrophysical quantities often include a component of change due to the hydrogen concentration and a component of change due to the gas flow.
The first and second heat-generating resistors neighbor each other in the direction of gas flow and, the first and second electrophysical quantities similarly vary depending upon the hydrogen concentration.
Therefore, there is almost no difference in the component of change due to the hydrogen concentration between the first electrophysical quantity and the second electrophysical quantity, but a difference occurs in the component of change due to the gas flow.
Therefore, of the amount of change in the electrophysical quantities, the component of change due to the gas flow can be found based on a difference between the first electrophysical quantity and the second electrophysical quantity.
Owing to the above-mentioned principle, and according to the invention described in claims 1 20, the component of change due to the gas flow in the amount of change in the target physical quantity which is one of either the first electrophysical quantity or the second electrophysical quantity, is calculated as a correction amount based on a difference between the first electrophysical quantity and the second electrophysical quantity.
A difference between the correction amount and the amount of change in the target physical quantity, substantially represents a component of change due to the hydrogen concentration
|
| Related patents |
|
|
Segmented bargraph display by an electrochromic display device
The present invention relates to an electrochromic display device for displaying an analog value in a bargraph fashion. The present invention relates, more particularly, ...
|
|
|
Microcomputer with a detecting function of a memory access error
It is therefore an object of the present invention to provide a microcomputer with a memory for storing instructions, in which a memory access error can be easily ...
|
|
|
Semiconductor intergrated circuit device
An object of the present invention is to provide a semiconductor integrated circuit device which can eliminate the above-mentioned drawbacks and disadvantages and which ...
|
|
|
Pipelined data processing device having improved hardware control over an arithmetic operations unit
A first object of the present invention is to provide a data processing device for effectively controlling and managing a pipeline of an arithmetic operation conducted ...
|
|
|
Clock generator circuitry
In accordance with one embodiment of the principles of the present invention, clock generation circuitry is disclosed which includes an oscillator for generating a first ...
|
|
|
Ultra-modular processor in lattice topology
The objects of the present invention are realized in miniaturized self-contained hot-pluggable and physically dismountable computing system herein called a Modular O...
|
|
|
Expert system for automically generating gear designs
This invention solves the shortcomings of the current process and provides other advantages. The process can be used in the conceptual stage of gear design, before ...
|
|
|
Automated three-dimensional precision coatings application apparatus
What is claimed is: 1. A precision coating apparatus, comprising: an articulated robot arm having a coating applicator mounted thereon, responsive to an arm control ...
|
|
|
Design verification apparatus
Therefore, an object of the present invention is to provide an industrial product design verification apparatus whereby omissions in the design verification process are ...
|
|
|
Method for planning/controlling robot motion
In view of the above, the present invention, through one or more of its various aspects and/or embodiments, is thus presented to bring about one or more objects and ...
|
|
|
Control Computers 
