PS Logger® – Revolutionizing Downhole Seismic Velocity Logging
PS Logger® is a world-class, high-precision seismic velocity logging system designed to meet the demands of modern geotechnical, environmental, and earthquake engineering investigations. Engineered through collaboration between OYO Corporation Japan and Akita University, PS Logger® combines technical sophistication with field-tested reliability to deliver unmatched subsurface insight.
What Is PS Logger®?
PS Logger® is a borehole logging system used to measure compressional (P-wave) and shear (S-wave) wave velocities of subsurface materials. These measurements are essential for determining the dynamic properties of soil and rock, which are critical in:
Geotechnical site assessments
Earthquake hazard evaluation (Vs30 classification)
Foundation and structural design
Environmental and geophysical studies
Key Features
🔹 Dual-Wave Velocity Measurement
PS Logger® provides simultaneous logging of both P-wave and S-wave velocities, delivering a complete picture of subsurface mechanical properties.
🔹 High-Energy Shear-Wave Source
Its innovative pneumatic shear-wave generator ensures reliable, high-energy wave input — even at significant depths — resulting in more accurate and repeatable data.
🔹 Real-Time Display
The system integrates seamlessly with the Robertson Geo Micrologger2, allowing real-time wavelet visualization and improved data management in the field.
🔹 Lightweight and Portable
Built for tough site conditions, PS Logger® is lightweight, rugged, and suitable for boreholes up to 150 mm in diameter. It is user-friendly and deployable by small teams with minimal setup time.
Applications Across Industries
PS Logger® is trusted worldwide in:
🏗️ Geotechnical Engineering: For assessing soil stiffness, site response, and dynamic settlement potential.
🌍 Earthquake Engineering: To measure Vs30 for seismic site classification and hazard analysis.
🛠️ Infrastructure Projects: For tunnel design, dam assessments, and foundation support evaluation.
🌱 Environmental Studies: To map subsurface layering and detect variations in material properties.
Why Choose PS Logger®?
✅ Accurate & Reliable – Designed for precision in challenging borehole environments
✅ Easy to Use – Quick deployment with intuitive operation
✅ Proven Globally – Deployed in hundreds of projects across Asia, Europe, and North America
✅ Support & Training – Backed by decades of research and real-world field experience
Learn More
🔹 View Specifications
🔹 History & Development
🔹 Contact Us for inquiries or demonstrations
Ready to Elevate Your Site Investigations?
Whether you're designing earthquake-resilient structures, analyzing complex soil conditions, or conducting academic research, PS Logger® delivers the accuracy and performance you can trust.
visit us : https://pslogger.com/contact/
