OYO Corporation products

The McOHM Profiler-4 is a multi-channel digital resistivity meter. It has switching functions for 32 electrodes and four (4) receiver circuits with high resolution 24 bit delta sigma type A/D converters. Also, it can output 400 V (800 Vp-p) – 120 mA at a maximum.

The GEOLOGGER-GWS2 is an instrument for natural gamma and electrical logging used with a GW combination probe (MODEL-3493). It can simultaneously measure natural gamma, resistivity (16”, 64”) and spontaneous potential, which contributes largely to such works as groundwater surveys.

The PS-1 NEO is a palm-sized digital instrument for elastic wave velocity measurements. A wave created by hitting ground with a hammer is detected in a distantly-positioned receiver (geophone), and this instrument measures the ground propagation time of the wave from the hitting point to the receiver. Elastic wave velocity can be easily calculated by the propagation time and distance between the hitting point and the receiver.

The LLT-M is a borehole lateral load tester that functions to determine the deformation characteristics of the ground from the relation between pressure inside its sonde and the inflated amount of its rubber tube. The instrumentation on the surface consists of a tank for producing pressurized water, pressure gauges, valves, etc. It is mainly featured by the applicability of different sizes of sonde, which makes it possible to choose a sonde suitable for borehole diameter.

The Point Load Tester is a uniaxial compression testing instrument designed for reading out pressure when a specimen is broken, and it consists mainly of a main unit, a pressure gauge and a hydraulic pump. It is very easy to carry the system and make measurements at a site because of its compact and lightweight design. Also, it takes only a short time to carry out a test, and all the works can be done easily by one person.