CA2427818A1 - Apparatus and method for testing stiffness of articles - Google Patents
Apparatus and method for testing stiffness of articles Download PDFInfo
- Publication number
- CA2427818A1 CA2427818A1 CA 2427818 CA2427818A CA2427818A1 CA 2427818 A1 CA2427818 A1 CA 2427818A1 CA 2427818 CA2427818 CA 2427818 CA 2427818 A CA2427818 A CA 2427818A CA 2427818 A1 CA2427818 A1 CA 2427818A1
- Authority
- CA
- Canada
- Prior art keywords
- article
- working element
- magnitude
- testing
- spaced apart
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
An apparatus for testing stiffness characteristics of an article such as a piece of lumber moving in a conveying direction transverse to the testing axis, comprises a bearing unit capable of contacting the article at two spaced apart portions thereof. A first deflecting unit includes a first working element applying a first thrust against a loaded area on the article at an intermediary portion thereof located between the spaced apart portions, to produce an article deflection of a first magnitude. Each working element defines a loading surface extending substantially parallel to the article-conveying path. A second deflecting unit includes a second working element for applying a second thrust against a loaded area of the article intermediary portion, to produce an article deflection of a second magnitude. Load cells coupled to the bearing unit generates signals indicative of respective magnitudes of the thrusts, from which a computer derives stiffness indication.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002427818A CA2427818C (en) | 2002-05-02 | 2003-05-02 | Apparatus and method for testing stiffness of articles |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2,384,553 | 2002-05-02 | ||
CA2384553 | 2002-05-02 | ||
CA002427818A CA2427818C (en) | 2002-05-02 | 2003-05-02 | Apparatus and method for testing stiffness of articles |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2427818A1 true CA2427818A1 (en) | 2003-11-02 |
CA2427818C CA2427818C (en) | 2006-06-13 |
Family
ID=29421122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002427818A Expired - Lifetime CA2427818C (en) | 2002-05-02 | 2003-05-02 | Apparatus and method for testing stiffness of articles |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2427818C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106081157A (en) * | 2016-06-17 | 2016-11-09 | 中国飞机强度研究所 | A kind of vertical following loading device |
CN113686860A (en) * | 2021-09-11 | 2021-11-23 | 广东科视光学技术股份有限公司 | Full-automatic optical detection equipment |
CN114166510A (en) * | 2021-10-20 | 2022-03-11 | 中国航发四川燃气涡轮研究院 | Measuring device for transverse rigidity of force measuring assembly |
CN115096573A (en) * | 2022-06-30 | 2022-09-23 | 中国地质大学(北京) | Test equipment |
CN116678741A (en) * | 2023-05-31 | 2023-09-01 | 涿州市紫阳机械设备科技有限公司 | Mechanical part machining equipment with detection function |
-
2003
- 2003-05-02 CA CA002427818A patent/CA2427818C/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106081157A (en) * | 2016-06-17 | 2016-11-09 | 中国飞机强度研究所 | A kind of vertical following loading device |
CN106081157B (en) * | 2016-06-17 | 2018-12-11 | 中国飞机强度研究所 | A kind of vertical following loading device |
CN113686860A (en) * | 2021-09-11 | 2021-11-23 | 广东科视光学技术股份有限公司 | Full-automatic optical detection equipment |
CN114166510A (en) * | 2021-10-20 | 2022-03-11 | 中国航发四川燃气涡轮研究院 | Measuring device for transverse rigidity of force measuring assembly |
CN115096573A (en) * | 2022-06-30 | 2022-09-23 | 中国地质大学(北京) | Test equipment |
CN115096573B (en) * | 2022-06-30 | 2023-12-22 | 中国地质大学(北京) | Test Equipment |
CN116678741A (en) * | 2023-05-31 | 2023-09-01 | 涿州市紫阳机械设备科技有限公司 | Mechanical part machining equipment with detection function |
CN116678741B (en) * | 2023-05-31 | 2023-10-27 | 涿州市紫阳机械设备科技有限公司 | Mechanical part machining equipment with detection function |
Also Published As
Publication number | Publication date |
---|---|
CA2427818C (en) | 2006-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20230502 |