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 |
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