Active Geophysical Monitoring

CHAPTER 7

RELIABLE MEASUREMENT METHOD TO REVEAL A PECULIAR DIELECTRIC DISPERSION IN WET ROCKS BY MEANS OF ACROSS

Hiroshi Matsumoto^a,b, Naotaka Shigeta^a,c,Mineo Kumazawa^a,d, and Takahiro Nakajima^a

Contents

1. Introduction

2. Measurement System

2.1. Bias caused by stray capacitance

2.2. Bias due to electrochemical reaction at the electrodes

2.3. Noise and uncertainty in measurement

3. Measurement of Moist Grains

3.1. Sample and measurement condition

3.2. Result of measurement

4. Discussion

4.1. Short summary on measurement technology

4.2. The 1/f type dielectric dispersion and its physical mechanism

5. Conclusion

References

1. INTRODUCTION

Our relevant research target is the physical states and tectonic roles of water within the solid earth’s interior. ...