JPS57169603A - Strain measuring method - Google Patents
Strain measuring methodInfo
- Publication number
- JPS57169603A JPS57169603A JP5417281A JP5417281A JPS57169603A JP S57169603 A JPS57169603 A JP S57169603A JP 5417281 A JP5417281 A JP 5417281A JP 5417281 A JP5417281 A JP 5417281A JP S57169603 A JPS57169603 A JP S57169603A
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- strain
- bridges
- outputs
- dummy
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PURPOSE:To improve measurement precision by selecting the output of a dummy bridge which gives a reference value during the switching of bridge outputs of bridges having an incorporated strain gauge, in measuring strain at plural positions from the bridge outputs. CONSTITUTION:The outputs of bridges 1a-1n having an incorporated strain gauge are inputted to a strain meter 4 while being switched selectively by turning on and off changeover switches 2a-2n by control signals 3a-3n from a control part 5', thereby recording strain at plural points on a recorder 6. In this case, a dummy bridge D stuck to a dymmy plate is set up and given the reference point (zero point) of a measurement system. During the selective switching period of those bridges, the dummy bridge D is selected to prevent a detection signal from fluctuating between the positive and negative greatly, and when the dummy bridge is selected, the reference value is indicated clearly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5417281A JPS57169603A (en) | 1981-04-10 | 1981-04-10 | Strain measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5417281A JPS57169603A (en) | 1981-04-10 | 1981-04-10 | Strain measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57169603A true JPS57169603A (en) | 1982-10-19 |
Family
ID=12963116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5417281A Pending JPS57169603A (en) | 1981-04-10 | 1981-04-10 | Strain measuring method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57169603A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353322A (en) * | 2011-06-07 | 2012-02-15 | 汉通建设集团有限公司 | dynamic safety-monitoring and alarming system and method in building (structure) mechanical-dismantling process |
| CN105300269A (en) * | 2015-11-16 | 2016-02-03 | 广东省自动化研究所 | Wireless precision strain measuring device and wireless precision strain measuring method |
-
1981
- 1981-04-10 JP JP5417281A patent/JPS57169603A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353322A (en) * | 2011-06-07 | 2012-02-15 | 汉通建设集团有限公司 | dynamic safety-monitoring and alarming system and method in building (structure) mechanical-dismantling process |
| CN105300269A (en) * | 2015-11-16 | 2016-02-03 | 广东省自动化研究所 | Wireless precision strain measuring device and wireless precision strain measuring method |
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