n - Fachhochschule Jena
n - Fachhochschule Jena
n - Fachhochschule Jena
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Rock-bolt with fiberoptic<br />
strain sensors<br />
Amplitude [a.u.]<br />
0,3<br />
0,2<br />
0,1<br />
0,0<br />
-0,1<br />
-0,2<br />
Application of Fiber Grating Sensor Systems<br />
Geotechnical Exploration & Mining<br />
-0,3<br />
0 20 40 60 80 100<br />
Time [ms]<br />
Strain wave measurement<br />
at test blasting in a mine<br />
(seismic tomography for<br />
geophysical exploration)<br />
Transversal "S" waves<br />
Amplitude [a.u.]<br />
0,8<br />
0,6<br />
0,4<br />
0,2<br />
Silver Mine<br />
„Old Elisabeth“<br />
(Saxonia, 200m)<br />
Results: Time response Frequency response<br />
"P" wave<br />
0,0<br />
0 500 1000 1500 2000 2500<br />
Frequency (Hz)<br />
Longitudinal "P" wave<br />
Partners:<br />
IPHT <strong>Jena</strong><br />
GFZ Potsdam<br />
GESO <strong>Jena</strong><br />
FOS - 75
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