JPS6413409A - Method for measuring stroke penetration displacement of pile by accelerometer - Google Patents
Method for measuring stroke penetration displacement of pile by accelerometerInfo
- Publication number
- JPS6413409A JPS6413409A JP16874787A JP16874787A JPS6413409A JP S6413409 A JPS6413409 A JP S6413409A JP 16874787 A JP16874787 A JP 16874787A JP 16874787 A JP16874787 A JP 16874787A JP S6413409 A JPS6413409 A JP S6413409A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- data
- range
- displacement
- speed data
- 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
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE:To obtain a displacement value which is very close to a real value by correcting all acceleration data with a mean value and integrating them to find a speed, correcting all speed data while regarding such an axis that the mean value of the speed data is zero within a range wherein displacement is originally constant as a reference line, and weighting and integrating the data. CONSTITUTION:Mean values of every 5-6 pieces of acceleration data are found and their mean value is used as a reference axis to correct and integrate all the acceleration data, thereby obtaining a chart (a) of the speed. Here, the actual displacement is as shown in a figure (b) and the speed should be zero within a range R. The reference axis S which is parallel to the inclination of speed data within the range R as shown in a figure (c) and sets the mean value of the speed data within the range R to a zero point is found and all the speed data is corrected based upon this reference axis. Further, the speed data within the range R are multiplied by a coefficient 1-e<-n/>N for weighing and then integrated to obtain the waveform of displacement extremely close to a real waveform (b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16874787A JPS6413409A (en) | 1987-07-08 | 1987-07-08 | Method for measuring stroke penetration displacement of pile by accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16874787A JPS6413409A (en) | 1987-07-08 | 1987-07-08 | Method for measuring stroke penetration displacement of pile by accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6413409A true JPS6413409A (en) | 1989-01-18 |
Family
ID=15873670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16874787A Pending JPS6413409A (en) | 1987-07-08 | 1987-07-08 | Method for measuring stroke penetration displacement of pile by accelerometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6413409A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098199A (en) * | 2009-12-09 | 2011-06-15 | 上海可鲁***软件有限公司 | Communication fault detection method |
-
1987
- 1987-07-08 JP JP16874787A patent/JPS6413409A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102098199A (en) * | 2009-12-09 | 2011-06-15 | 上海可鲁***软件有限公司 | Communication fault detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6413409A (en) | Method for measuring stroke penetration displacement of pile by accelerometer | |
| JPS6463457A (en) | Artificial car velocity generating device for anti-skid control device | |
| JPS5425779A (en) | Torque measuring method of electric dynamometers | |
| EP0316937A3 (en) | Method and apparatus for inference | |
| KR900001435A (en) | Manufacturing method of forging | |
| JPS53108860A (en) | Zigzag travel correcting method | |
| Wei-Ming | A simplified method for eliminating error of transverse sensitivity of strain gage: Author presents a simplified method to eliminate the stress-determination errors | |
| MUNZ | The method of specific potential energy for the determination of fracture toughness | |
| JPS6479637A (en) | Detection of position of defect and of open end of optical fiber | |
| JPS5324883A (en) | Vicker's hardness tester | |
| SU634171A1 (en) | Method of evaluating material fracture ductility | |
| SU597775A1 (en) | Working member of device for shear testing of soil | |
| AU5880794A (en) | A method of detecting the earth content in beets | |
| ABLAMSKII | An analytical study of the stressed state of disks | |
| JPS5774652A (en) | Correcting method for blood sugar value analyzer | |
| CN110361202A (en) | A kind of caliberating device and its method of test force hammer sensor | |
| SU607122A1 (en) | Barometric altitude measuring device | |
| VOLMIR et al. | Investigation of the dynamics of composite structures by the superelement method | |
| Karihaloo | Three-Dimensional Elastic Crack Tip Interactions With Transformation Strains and Inhomogeneities | |
| SU1479863A1 (en) | Method for determining moisture of loose materials | |
| KOPECKI et al. | Investigation of stress concentrations in joints of structures by the Modeltech method | |
| RICHARD | Determination of stress intensity factors from stress concentration factors and notch stress diagrams based on photoelastic findings | |
| Boitsov | Similarity characteristics of the fatigue fracture of a titanium alloy | |
| ROBERTSON | Prediction of Naval Aviator career motivation and job satisfaction from the strong vocational interest blank[Ph. D. Thesis] | |
| Bouksim et al. | Initiation and Propagation of Short Cracks in an Aluminum Alloy Subjected to Programmed Block Loading |