Abstract
The measurements of a strain gauge type cone penetrometer are influenced by the temperature change during penetration. A real-time temperature compensation technique using a fiber Bragg grating (FBG) sensor is suggested to correct the effect of temperature on cone tip resistance. A 7-mm micro cone penetrometer equipped with FBG sensors and electrical strain gauges was developed to evaluate the suggested technique. Design concepts include the cone configuration, sensor installation and the temperature compensation process. It is shown that the measured cone tip resistance is significantly affected by the temperature; the error increasing with increasing temperature change. The cone tip resistance measured by the FBG sensor is effectively corrected by the real-time compensation method. The qc profile of the strain gauge indirectly corrected by the re-penetration test is quite similar to the real-time compensated profile. It is concluded that the proposed real-time temperature compensation using the FBG sensor is an effective technique to obtain reliable cone tip resistance profiles.
| Original language | English |
|---|---|
| Pages (from-to) | 3-13 |
| Number of pages | 11 |
| Journal | Bulletin of Engineering Geology and the Environment |
| Volume | 72 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
Fingerprint
Keywords
- Cone penetrometer
- FBG sensor
- Temperature compensation
- Temperature effect
- Tip resistance
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Geology
Cite this
Quantitative assessment of temperature effect on cone resistance. / Lee, Changho; Kim, Raehyun; Lee, Jong-Sub; Lee, Woojin.
In: Bulletin of Engineering Geology and the Environment, Vol. 72, No. 1, 01.01.2013, p. 3-13.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Quantitative assessment of temperature effect on cone resistance
AU - Lee, Changho
AU - Kim, Raehyun
AU - Lee, Jong-Sub
AU - Lee, Woojin
PY - 2013/1/1
Y1 - 2013/1/1
N2 - The measurements of a strain gauge type cone penetrometer are influenced by the temperature change during penetration. A real-time temperature compensation technique using a fiber Bragg grating (FBG) sensor is suggested to correct the effect of temperature on cone tip resistance. A 7-mm micro cone penetrometer equipped with FBG sensors and electrical strain gauges was developed to evaluate the suggested technique. Design concepts include the cone configuration, sensor installation and the temperature compensation process. It is shown that the measured cone tip resistance is significantly affected by the temperature; the error increasing with increasing temperature change. The cone tip resistance measured by the FBG sensor is effectively corrected by the real-time compensation method. The qc profile of the strain gauge indirectly corrected by the re-penetration test is quite similar to the real-time compensated profile. It is concluded that the proposed real-time temperature compensation using the FBG sensor is an effective technique to obtain reliable cone tip resistance profiles.
AB - The measurements of a strain gauge type cone penetrometer are influenced by the temperature change during penetration. A real-time temperature compensation technique using a fiber Bragg grating (FBG) sensor is suggested to correct the effect of temperature on cone tip resistance. A 7-mm micro cone penetrometer equipped with FBG sensors and electrical strain gauges was developed to evaluate the suggested technique. Design concepts include the cone configuration, sensor installation and the temperature compensation process. It is shown that the measured cone tip resistance is significantly affected by the temperature; the error increasing with increasing temperature change. The cone tip resistance measured by the FBG sensor is effectively corrected by the real-time compensation method. The qc profile of the strain gauge indirectly corrected by the re-penetration test is quite similar to the real-time compensated profile. It is concluded that the proposed real-time temperature compensation using the FBG sensor is an effective technique to obtain reliable cone tip resistance profiles.
KW - Cone penetrometer
KW - FBG sensor
KW - Temperature compensation
KW - Temperature effect
KW - Tip resistance
UR - http://www.scopus.com/inward/record.url?scp=84874497562&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874497562&partnerID=8YFLogxK
U2 - 10.1007/s10064-012-0454-3
DO - 10.1007/s10064-012-0454-3
M3 - Article
AN - SCOPUS:84874497562
VL - 72
SP - 3
EP - 13
JO - Bulletin of Engineering Geology and the Environment
JF - Bulletin of Engineering Geology and the Environment
SN - 1435-9529
IS - 1
ER -