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NEWS
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October 2009
IT'S HERE!
After much anticipation, we have received our first 2000mhz Palm antenna from GSSI. The new Palm Antenna offers users the ability to reach tightly spaced areas that were previously inaccessible such as corners, against walls and around obstructions.
The Palm Antenna is compatible with the SIR‑3000 and SIR-20 control units. It includes a dedicated survey wheel, a replaceable skid plate, and removable handle to reduce antenna height, if necessary. The Palm Antenna weighs in at approximately one pound.
Center Frequency: 2000 MHz
Depth Range: to 0.4 m (12 in)
Antenna Weight: .49 kg (1.1 lbs)
Cable Weight: .95 kg (2.1 lbs)
Dimensions: 4.1x3.6x6 in
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August 2009
2600 mHz Antenna
EXI has added a new model high-frequency antenna to its list of available options to the radar systems. Those working with a need for very high definition in concrete imaging will appreciate the added resolution that this antenna can provide.
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July 2009
New Faces, New Voices
 Greg Jones has taken over Customer Service at Extension 100. Greg has a degree in Environmental Sciences and comes to us most recently from National Instruments.
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June 2009
 Look Ma, no backpack! The newest version of the Geonics EM61, the MKIIA, eliminates the need to put on a backpack. New brackets on the coils and carry-handle support the battery, electronics and data logger. In addition, the newest rev coils are encased in a plasticized medium that is much more resistant to moisture.
10% discount to the first renter that can supply us with a decent picture of the MKIIA in the field instead of the show-room floor.
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March 2009
 New carts are now available for use with the SIR3000 Ground Penetrating Radar systems. The four-wheel configuration is particularly suitable for the 270 mhz antenna but will also work with the 400,900, 1500 and 2600 mhz antennas.
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January 2009
More channels, more channels, more channels! As our clients continue to evolve with available technology, trying to keep up with the demand for ever-increasing volume of data acquisition is like trying to keep your kids in shoes. To that end, EXI has added FIVE MORE 24-channel GEODES! This multiplies our capability to field (wait, we'll do the math for you) 144 channels of seismic acquisition!
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November 2008
 
EXI has added the new 2.6Ghz antenna from GSSI to the radar rental inventory. This antenna provides great resolution in concrete imaging and allows greater flexibility in specifying which antenna will be best for your job.
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March 2008
Early 2008 has seen Exploration Instruments acquiring several new geophysical instruments.
Another GSSI product we have recently added to the rental pool is the Roadscan System. This system allows you to sample every 8" at highway speeds allowing you to confirm pavement cross sections and thickness without having to core. It can also be used to locate voids below the pavement.
For more information visit the Roadscan website.
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For borehole seismic work we now have the Geostuff BHG-3 triaxial geophone. The BHG-3 features automatic orientation of horizontal geophones to any azimuth, through a fluxgate sensor powered by the same DC source as the clamping mechanism.|
 
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For pricing and/or to reserve any of equipment for your next job, contact us.
New Service
For our GSSI GPR and EMI applications, we now offer contract technical support; more information on this service can be found here.
Upcoming appearances
Come see us at the SAGEEP conference , April 6-10, 2008 in Philadelphia, PA. We will have a booth in the exhibit hall and Cindy Burton, our partner in technical training and support, will be offering a short course entitled, "Demystifying the Art and Science of GPR" on Sunday, April 6th in conjunction with the conference.
A lot of you may be members of EEGS, the host organization of this symposium. If you are not, you may want to check them out along with the SAGEEP conference. Early bird registration ends this week so don't delay!
November 2007
November has brought with it some welcome additions to the inventory. Exploration Instruments is excited about adding capability to our AGI SuperSting systems by offering 8 channel 56-electrode external Switch boxes. These switch boxes allow us to provide resistivity systems switching through 112 electrodes on the ground at any one time. Extra cables and stakes are available so that you can roll sets of electrodes and gain greater production.
Packages including a switch box and cables are available to clients who already own SuperStings and would like to collect greater amounts of data.
EXI has also added some new devices which we believe will be very useful for those customers involved in concrete imaging and other NDT applications. The HandyScan radar system combines a small, lightweight radar antenna, CPU, and display in a very portable unit. It's greatest convenience will be for quick evaluations where its ease-of-use and weight will be really appreciated by anyone standing on a ladder working walls and ceilings. The systems are available in either Black and White or Color display.
The next GPR class in Austin is December 11-13, 2007.
We have seats available!
The entire 2007 Schedule for GPR Training at Exploration Instruments may be viewed here.
July 2007
Early summer has been a time for change and we began by modifying a number of our Geonics EM-38's. For any one measurement, the standard EM38 provides measurements of either quad-phase (conductivity) or in-phase (magnetic susceptibility) component data, as selected by the operator. Comparatively, the EM-38 B provides simultaneous measurement of both phase components, at all times. For surveys which include measurement of both components - common for archaeological investigations - the EM38B significantly reduces the amount of time required.
In addition, we have also added an EM-38 DD. The DD model combines two standard EM-38's and allows the operator to measure either the conductivity or in-phase component, but will measure that component on both horizontal and vertical dipoles simultaneously. It is a much faster way to complete any survey which includes the measurement of both dipole modes.
 
June 2007
The latest info from the Environmental and Engineering Geophysical Society has hit the stands and may be viewed at FasTimes. A high-resolution version, best for printing and distributing to customers is also available from the EEGS website: EEGS
April 2007
You can access the latest information from the Environmental and Engineering Geophysical Society by viewing the newest newsletter from that organization at FasTimes
March 2007
We have added another RD4000 to our inventory. Clients have found this Pipe and Cable Locator by Radio Detection to be extremely useful in many applications. We have teamed the RD4000 PDL with a T10 10 Watt Transmitter for the best power available over 16 frequencies. Additional information may be downloaded from: RD4000 Brochure
September 2006
The summer has been so busy we forgot to post a notice about EXI's new sub-bottom profiling system! The Stratabox from Syqwest Systems is a great, compact system that fills a growing need for our clients. It's ideally suited to in-shore survey work and since it is controlled via your laptop, the shipped system consists of only the transducer, control box and clamping framework. You can view a pdf at this link: Stratabox
June 2006
We are happy to announce that EXI has taken delivery of two of the very first commercially available Ultra MiniRes's from L and R Instruments! The Ultra continues L and R's efforts to provide extremely accurate resistivity and IP measurements in a single channel meter.
With the introduction of the Ultra, the maximum available current has doubled to 20 milliamps. A third display range of 2000 milliohms has been added to the existing ranges of 20 ohms and 2000 ohms. This will increase the accuracy of recordings in highly conductive areas. The Ultra is available in two operating frequencies - 5 Hz and 2.5 Hz. At the lower operating frequency of 2.5 Hz, it does take a little longer to acquire a reading, but will also allow deeper depths of investigation. Tests have resulted in good readings at "a" spacings of 1000 feet!
March 2006
Exploration Instruments is hiring! We're looking for a geophysicist to take over management of our equipment inventory and we'd love to hear from you. Check out our New Employment Opportunity!
January 2006
Looking for some information about Surface Wave Techniques? The folks at Geovision have kindly allowed us to make available their concise overview of Active and Passive Surface Wave Techniques. We think you'll find it very useful if you've been wondering what the buzz is all about.
Tired of swinging that hammer on seismic surveys? We've got something that has been requested by many to make life easier. How about a Portable Energy Generator? Ok, how about an Accelerated Weight Drop? EXI can put a PEG-40 AWD on your doorstep along with the seismograph and land streamer you need for your next project.
The next GPR class in Austin is February 7-9, 2006.
We have seats available!
The entire 2006 Schedule for GPR Training at Exploration Instruments may be viewed here.
September 2005
EXI is pleased to announce the addition of the Geometrics 24-channel Geode to our rental inventory! Bundled with its own processing software, the Geode boosts our offering to 
those who are engaged in MASW and SASW seismic acquistion as well as standard refraction and reflection work.
Our friends at Geonics provided a nice tip which will be welcome by those doing VLF surveys in North America. The Northern Colorado Sudden Ionospheric Disturbance Observatory monitors various vlf frequencies and publishes the data at their website:
http://www.xtrsystems.com/vlf/graph
This will be of help when you are questioning whether a site is up and running or not. We'll maintain a link to them from our web site for your convenience.
August 2005
Our Lacoste and Romberg Model AliodG Gravity Meter has been upgraded with an attached battery housing! This long-awaited upgrade does away with external batteries attached by the 12volt umbilical cord. Employing Lithium Ion technology, you can now go to the field with a small lightweight battery plugged directly into the gravity meter and a spare in your backpack. The weight savings is considerable and the meter can now be carried in a smaller field case.
We are VERY pleased to note that Geonics has updated their web site with available downloads of their manuals and software! This is very helpful to those looking at using their instruments for the first time and need a review of the manuals.
EXI has begun to add the new Juniper Systems Allegro CX Field Computer as the data 
logger of choice for EM equipment. The CX continues to run the Windows CE operating system from Microsoft, but new software from Geonics takes full advantage of new firmware to render its operation on the CX much faster than the previous Allegro running Windows CE.
May 2005
The new GSSI Structure-Scan Optical System is now available from EXI. The fusion of a Bar-code reader with Wheel-encoder on the antenna cart enables a user to acquire 3-D data without the necessity of a special mat while longer traverses can still be done with the wheel encoder for great accuracy.
April 2005
The EEGS announces that photos from the recent SAGEEP meeting are available for viewing via the Interpex web site! Look for friends courtesy of Dr. Charles Stoyer.
SAGEEP Pictures
Note our newest addition to the family of seismic products offered: Rayfract Seismic Tomography Software. This package from Intelligent Resources will provide clients the ability to generate smooth inversions of their refraction data in a timely manner. A recent evaluation of tomographic analysis appears in the March issue of the Journal of Environmental and Engineering Geophysics.
January 2005
Dr. Essam Heggy of the Lunar and Planetary Institute in Houston, Texas sends us this link to an announcement by the Discovery Channel regarding their work in delineating possible meteorite craters in Egypt. EXI was pleased to supply some of the Ground Penetrating Radar equipment pictured.
We are very excited about the deployment of our new 24-Channel seismic Land Streamer ! Using 4.5 Hz geophones spaced at 5' intervals, these streamers should be very helpful for those doing MASW acquisition. The streamers are easily coupled for 48-channel use and we have added a second RAS24 seismic system so that customers can easily field a 48 channel seismic system.
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In late December EXI was happy to take delivery of one of the new GSSI 270 Mhz antennas. Boxed in a smaller case than the 200 Mhz, this antenna (17"x17") attaches to a survey cart for easy use in utility-detection. |
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