resistivity instrument Articles

  • A new categorisation method of resistivity instruments

    This paper presents a new categorisation method of resistivity instrument: Conventional arrays-oriented resistivity instruments (conventional instruments) vs. Comprehensive array-oriented resistivity instruments (comprehensive instruments). The conventional instruments were ...

  • IP resistivity

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging ...


    By Advanced Geosciences, Inc.

  • Roll along resistivity survey

    A roll-along survey is a method for operator to survey a long line. After the initial survey, the operator will leave one cable on the ground and move the instrument and cables forward. So there is always one cable overlap between two surveys. Alternatively, the operator can divide the cable in half and only overlap 16 electrode spacing. In this way, the opearator could complete the survey ...

  • Flame Resistant Clothing

    Flame resistant (FR) clothing is designed as a means or protection against potentially fatal flash fire and arc flash environments.  The main source of fatal and serious burn injuries are usually due to the igniting of an individual’s clothing.  Flame resistant clothing allows precious time for the person wearing the clothes and also helps to prevent clothing ignition.  Keep in ...


    By Texso Instruments Co

  • The fundamental conductivity and resistivity of water

    Pure water has a very low. but not quite zero, electrical conductivity. This conductivity provides a probe into fundamental properties of water, including the electrochemical mobility of the hydrogen and hydroxide ions. Deviation from this value is a measure of trace ionic impurities. Ultrapure water (UPW). with impurities at or below the sub-parts-per-billion range, is used extensively in many ...


    By SnowPure Water Technologies

  • 3D Resistivity survey case study

    The challenge with all 3D electrical resistivity surveys is that the sizable amount of information points needed. this can be to retain a high enough resolution despite the extra dimension. Conventional electrical resistivity meters with sub-units or switchers for 3D survey. The FlashRES electrical ...

  • The key advantages of FlashRES resistivity meter

    FlashRES-UNIVERSAL is the first instrument in the world that can fully utilise all its electrodes during data collection.  It is a significant technological breakthrough. FlashRES-UNIVERSAL has following key advantages: FlashRES is a 61-channal resistivity/IP system and it is extremely fast For each current injection, conventional resistivity systems usually collect ...

  • MASW and resistivity sounding case study

    Anclote Natural Gas Conversion Project, Pasco County, FL  Our client was coordinating the conversion of an oil-burning power plant to natural gas. As part of the associated geotechnical study, GeoView, Inc. was tasked with determining the S-wave velocity and vertical resistivity structure at the site. For the seismic portion of the study, MASW (Multi-channel Analysis of Surface ...


    By GeoView, Inc.

  • Brüel & Kjær’s radiation-resistant accelerometers

    Carrying out vibration measurements in harsh industrial environments is much easier for engineers with Brüel & Kjær’s new Type 8347-C Accelerometer. The Type 8347-C accelerometer can withstand temperatures ranging from -196°C (-321°F) to +482°C (+900°F) and has high resistance to radiation. The shear design ensures the accelerometer  superior thermal ...

  • Case Study - Shallow Soil Resistivity Survey

    Lima, Peru Site:  Pontificia Universidad Católica del Perú, Lima, Peru Instrument and method:  SuperStingR8 WiFi with 28 electrode passive electrical imaging cable.  Measured in dipole-dipole and inverse schlumberger array.  Modeled with EarthImager 2D. Results:  Resistivity data were used to successfully estimate the ...


    By Advanced Geosciences, Inc.

  • Case Study - Lacustrine: Underwater Resistivity Surveys

    Lake Travis – Austin, Texas Objective:  Locate buried pipeline and map the limestone bedrock surface Site:  Lake Travis, near Austin, Texas USA during the AGI Marine Resistivity Seminar Date:  May 1, 2014 and May 7, 2015 Instrument:  SuperStingR8 WiFi, SwitchBox56, underwater marine cable with 28 electrodes spaced at 6m. ...


    By Advanced Geosciences, Inc.

  • Ultrapure water – The standard for resistivity measurements of Ultrapure water - Case Study

    Abstract For years, resistivity/conductivity2 instrumentation has been used as a reliable indicator of ionic water quality, especially for ultrapure water (UPW). Traditionally, the instrumentation is procured, installed, powered up, and perhaps connected to a PLC, strip chart recorder, or a LAN. After that, the instrument and sensor receive no attention until a problem arises. Today, ...


    By SnowPure Water Technologies

  • Case Study - Panama Canal: Boat Towed 3D Resistivity Surveys

    77 km Long 3D Canal Floor Sediment/Rock Study for Dredging Estimates Boat towed streaming dipole-dipole resistivity data were successfully used to estimate geotechnical properties of the canal floor in order to reduce dredging costs for an ongoing Panama Canal expansion program. Site:  The 77-km long Panama Canal with 773 line-km of resistivity data collected at 25 m transect spacing ...


    By Advanced Geosciences, Inc.

  • Genotypic evolution of azole resistance mechanisms in sequential candida albicans isolates

    TAC1 (for transcriptional activator of CDR genes) is critical for the upregulation of the ABC transporters CDR1 and CDR2, which mediate azole resistance in Candida albicans. While a wild-type TAC1 allele drives high expression of CDR1/2 in response to inducers, we showed previously that TAC1 can be hyperactive by a gain-of-function (GOF) point mutation responsible for constitutive high expression ...

  • Installation of Radar Level Instruments in Anaerobic Digesters

    ABSTRACTThere are numerous well-proven options available for level determination instrumentation. Instrumenting treatment processes present some unique challenges. Some of these include the ability for wastewater or residuals to clog and blind instruments. Level determination in an anaerobic digester presents these problems as well as others including foaming, surface agitation, and operation in ...

  • Gill Instruments case study featured in AWE International

    AWE International magazine, which is focused on the environmental analysis industry, recently featured Gill Instruments in a case study about environmental monitoring with solid-state meteorological instruments. The case study includes information about all of the products within the Gill Instruments range, with information about their advantages within the environmental analysis field. We have ...


    By Gill Instruments Limited

  • Innovative fracture-resistant construction material from C&D waste aggregate, fly ash and recycled plastics

    A laboratory investigation was conducted to evaluate the fracture behaviour of an alternative pavement foundation material containing cement stabilised reclaimed crushed aggregate, Class C fly ash and waste-plastic strip (high density polyethylene or HDPE) reinforcement. The primary objective of using strip reinforcement was to improve the tensile strength, crack resistance and toughness ...


    By Inderscience Publishers

  • Archeological surveys case study

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the case in question. Acknowledgement: These cases have been submitted by satisfied customers whom we thank for permission to publish ...


    By Advanced Geosciences, Inc.

  • Full waveform data display

    FlashRES resistivity meter displays full current and voltage data when the system is collecting these data. The real time read out of the data effectively helps operator to monitor the data quality. In case the data quality Q factor drops in value, the operator can pause the data collection process and check the background, contact and instrument noise. Displa full waveforms thus protect ...

  • Cave and void detection case study

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the case in question. Acknowledgement: These cases have been submitted by satisfied customers whom we thank for permission to publish ...


    By Advanced Geosciences, Inc.

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