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Category Icon G-882 (4)
Category Icon Maglog (3)
Processes defined in Maglog software
Category Icon Magmap2000 (5)
Program to input and process Geometrics Magnetometer Data
Category Icon Magpick (3)
Magpick processing software
Category Icon G-822 (0)
Airborne Magnetometer - no counter
Category Icon G-823 (2)
Airborne Magnetometer
Category Icon G-856 (1)
Proton Magnetometer
Category Icon G-858 (3)
G-858 Cesium Magnetometer
Category Icon G-859 (0)
G-859 Mining Magnetometer instrument information
Category Icon G-862 RBS (1)
Cesium Base Station Magnetometer
Magnetometers rss button
Magnetometer instrument information
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There were 23 articles found in this category:
  1. questionMagnetic Anomaly Model of a Point Source
    The Gammas2.exe is a Windows program that can be used to estimate the amplitude of the magnetic anomaly produced by a steel object that has not been magnetized. In other words, the program assumes that the magnetic anomaly is solely induced by the earthís field according to the objectís suscepti ...

  2. questionUSB to Serial Converter configuration for Windows operating system
    This article assists in the installation and configuration of a USB to SERIAL converter in order for Geometric's Magnetometers to communicate with a Windows based logging computer. The document outlines cofiguration with our G-824 magnetometer but Steps 1-5 are only required when working with a ...

  3. questionDoes the cesium in my magnetometer represent a health risk?
    The cesium used in our magnetometers sensors is the non-radioactive elemental metal, isotope Cs 133. We employ approximately 120 to 240 micrograms of cesium metal in the sensor divided between the lamp and absorption cell. These are small glass ampules, each containing a volume of 1/32 to 1/1 ...

  4. questionUse and care of G-856AX/G-858/G-859 batteries
    The batteries used in the portable magnetometers instruments are lead-acid gelled electrolyte batteries. The choice of this type of battery was dictated by their non-magnetic internal construction. We “magnetically compensate” these batteries to further reduce their magnetic signatu ...

  5. questionMagnetometer used in AUV
    The attached PDF gives a general description of using an magnetomerter in a Autonomous Underwater Vehicle (AUV)

  6. questionHow can I use the Cesium Magnetometer for Mineral Exploration?
    The depth of exploration is determined by the spatial wave-length of the magnetic anomalies revealed during the survey. It is important to understand that the measurement of the magnetic field at a single point does do provide any depth information. A single measurement includes the contributi ...

  7. questionWill the magnetometer find gold?
    1. There are basically three types of "gold": low concentration disseminated gold in ore, placer gold deposits and solid gold such as that associated with treasure. Magnetometers are used to find disseminated gold by its association with mineralized zones which also contain magnetite or othe ...

  8. questionGeneral Guide For Testing System Cables And Connectors 50017-TI
    This simple guide is meant to aid in verifying that all cables used for system interconnection are working properly. Whether the cables are built for the particular system or are purchased outside. Never assume the cables will function without first connecting them up and finding out. “Tr ...

  9. questionHow do I setup the Keyspan 4 channel Serial to USB Converter to download the 856 on a Windows 7 machine?
    1)Download the latest MagMap2000 software from our site. http://www.geometrics.com/geometrics-products/geometrics-magnetometers/download-magnetometer-software/ 2) With the Keyspan connected and Win 7 drivers loaded, right click on My Computer and then left click on Properties. Click the Devi ...

  10. questionHow does Magnetometer noise vary with sample rate?
    Sensitivity is given as a frequency bandwidth product or nT/rt Hz RMS. This value is valid for ALL sample frequencies or sample rates. Sensitivity for the 858 and 859 is 0.008nT/rt Hz RMS Sensitivity for the 823 and 882 is 0.004nT/rt Hz RMS Noise levels can also be given as Peak-to-Peak number ...

  11. questionHow do I run MagLog and MagMap in my Windows 7 machine? Does it matter if it is 32 bit or 64 OS?
    Microsoft recently released 32 and 64 bit versions of their new operating system Win 7. We like the OS and realize that many people will be upgrading from Vista or XP to take advantage of the new features. MagMap and MagLog are compiled for the 32 XP OS. We are in the process of recompiling t ...

  12. questionDifference between our standard Cesium Magnetometer and the SX model
    Clarification regarding Geometrics standard magnetometers, SX versions and the US Govt. export regulations In this brief review magnetometer specifications are given in terms of both nT/sq-rt-Hz RMS and in Peak-to-Peak (P-P) noise values as both forms are often used to describe instrument perf ...

  13. questionDepth of exploration
    In a general sense, the exploration depth of the magnetometer's readings are unlimited. It is certainly sensitive to the Earth's field and this is generated in the Earth's Core, some 5000 km beneath our feet. But for practical purposes, the depth of exploration is determined from survey resu ...

  14. questionEstimating Depth to basement
    Magnetic surveying as a means of estimating depth to basement requires the collection of a data set that can be processed to yield the average radial power spectra as a function of survey position. The assumption here is that the basement rocks are much more magnetic that the overlying sediment ...

  15. questionExploration for Iron Ore
    One of the primary uses of our portable (land) magnetometers is mineral exploration. And iron ore is one of the easiest targets because of its magnetic properties. Because of this, magnetometer surveys are almost always part of the initial phase of any iron exploration program. Briefly stated ...

  16. questionThoughts about attaching a magnetometer to a non-ferrous sled or frame.
    Regarding deployment of magnetometers on conductive sleds or carts near power lines: we expect that the elevated field readings you may observe under power lines are a result of AC induction in the aluminum sledge you are using as the tow vehicle. The reason that you see a DC effect from an AC ...

  17. questionWhy you need a Base Station
    Your need of a base station depends on the objective of the survey. If one is performing a geologic survey to investigate deep structure (exploration for mineral deposits, oil/gas, geology) then the wavelengths of the "target" body are typically “long” (long in meters, therefore lo ...

  18. questionMagnetic properties of Stainless Steel
    All of the 300 series stainless (austenitic) steel is considered to be weakly magnetic in its annealed state. These include the common 303, 304, and 316 alloys. 18-8 stainless is another name for 304 stainless (18% chromium and 8% nickel). Surprisingly it is the nickel content in the stainle ...

  19. questionCesium Magnetometer Product Certification
    The attached document at the bottom of this page can be used to prove the Hazardous Material Status of our Cesium Magnetometers.

  20. questionWhy does the signal strength vary with the magnetic field in high gradient locations?
    If the sensor is in a very large gradient field such as inside a building near some steel objects, then the high gradients (change of field with distance) causes different parts of the internal sensor components to respond to different fields, making the sum signal smaller. This only takes pla ...

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