Geophysicists and Geophysical Equipment Rentals

for engineering geophysics are found at

Find a geophysicist through for surveys like MASW, GPR, electrical earth resistivity imaging, seismic refraction, seismic reflection, underground line locating, electromagnetic terrain conductivity, archaeology, graves, or ground vibration monitoring. Concrete scanning services, which are like concrete X Ray services, are popular in the fields of construction or demolition of highways, roads, bridges, and buildings. Finding a concrete scanner with a background in geophysics is often needed. Locate geophysical equipment rentals  or visit K.D. Jones Instruments for a variety of engineering and geophysical applications. Other disciplines (Θ see below) utilizing engineering geophysics and geophysical applications are discussed. Some disciplines include frac sand exploration, archaeological geophysics, mine planning, levee certification, design, and mapping, geophysical classifieds, geophysical equipment sales, multichannel analysis of surface waves MASW applications and methods, geophysical proposals, geophysical training, line locator equipment, and underground line locating. Each link offers a blog about the primary geophysical method of the site. People are welcome to add comments to the blogs. More enthusiastic persons can request to write for their favorite blog.

Engineering geophysics use instruments from many manufactures. SuperSting and MiniSting multi-electrode earth resistivity imaging systems are built by Advanced Geosciences, Inc.. Sensors & Software has decades of experience building ground penetrating radar GPR systems as does Geonics with their EM-61 EM-31 EM-34 EM-38 instruments. Geometrics pioneered a wide range of geophysical equipment, like instantaneous floating point seismographs (from the older 2401 to the new Geode), magnetometers G-858 G-856, and the OhmMapper capacitance coupled towed resistivity array. Instantel specializes in ground vibration monitoring seismographs, geophones, accelerometers, and microphones. In addition to the above, magnetic susceptibility meters, borehole logging tools, underground utility locators, and other geophysical applications can be found at the above link to equipment rentals.

Seismic methods include discussions about seismographs, geophones, accelerometer, cables, software, and seismic sources for seismic refraction, seismic reflection, MASW, and shear wave surveys. Electrical resistivity addresses resistivity soundings, multiple electrode resistivity MER systems, and towed arrays.  Wenner, Schlumberger, Dipole-Dipole, Pole-Dipole, Pole-Pole, or user defined) arrays offer unlimited options. Ground Penetrating Radar GPR includes topics about antenna options for geologic mapping, concrete scanning, underground utility locating, depth of penetration, mapping voids, and even finding graves. Electromagnetic EM methods are popular for measuring apparent soil conductivities or locating buried metal. Magnetometers used to map archaeology sites, landfills, and USTs can provide insite that other geophysical methods can not provide. While many utility locating companies do not have the above EM methods or total field magnetometers, their services would be enhanced if these near surface geophysical methods were implemented. Ground vibration monitoring is discussed so mine engineers, geophysicists, demolition specialist, and manufactures can fine tune their programs and better assist the public concern.

Θ – Note all topics and sites of the geophysical network are not yet installed. Requests for areas of expertise are welcome.

6 Responses to At Find Engineering Geophysics, Services, Surveys, and Rentals

  1. SuperSting January 20, 2013 at 2:57 pm #

    Looking for SuperSting electrical resistivity equipment. Need to get up to speed with new multielectrode methods

    • geophysics January 20, 2013 at 3:04 pm #

      To rent geophysical equipment like the SuperSting go to the top of this page and click on the highlighted “geophysical equipment rentals” link. There is a wide selection to choose from. Either go to K.D. Jones instruments or both places are good for finding equipment and help.

  2. Engineering Geophysics Proposal February 15, 2013 at 7:07 am #

    We are looking at options for geophysical testing for a wind farm. Do you have any ideas?

    • Geophysics February 15, 2013 at 9:25 am #

      There are many geophysical methods that may apply to a wind farm. Are you looking for electrical properties of the soils, depth to rock, mechanical properties of the soils for construction, or other?

      • Engineering Geophysics Proposal February 15, 2013 at 10:20 am #

        I need to find out more about the soil resistivities.

        • geophysics February 15, 2013 at 1:22 pm #

          Electromagnetic terrain conductivity measurements with a Geonics EM38, EM31, or EM34 can assist with mapping out variations in apparent conductivity over large areas. The EM-38, EM-31 and EM-34 have four general depths of investigation, ranging from the surface to about 200 feet. In constrast, a multielectrode electrical resistivity survey with an AGI SuperSting R8 and 84 electrodes offers some of the greatest detail along a single line or cross section. The cross section is a computer generated resistivity image of the soil resistivities as a function of depth. While the depth of penetration is somewhat dependent on the soil resistivities, this geophysical method can reach 100’s of feet with large enough electrode spacings. Conducting an electrical resistivity sounding with the same resistivity meter or a SuperSting R1 and four pins or electrodes can usually reach much greater depths at a single location or station. Greater depths of penetration are available because a large spool of wire is used with each electrode. The spools of wire allow much greater electrode spacings than are often utilized with the multielectrode system.

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