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  • Archaeological survey 2

    Archaeological survey 2

    The site of the Meadows’ Wesleyan Cemetery in the Adelaide is thought to contain more than 130 unmarked graves. This site initially had a chapel constructed on it in 1840 and the first burial in 1855.  The initial chapel was replaced by a ...

    David Graham

  • Compare active and passive cables

    Compare active and passive cables

    Active cables refer to the cable with electronic part in the cable. Control and ADC in resistivity system controls the electronic parts in the cable, which controls the current injection. Passive cables refer to the cable with no electronic part in ...

    David Graham

  • Resistivity system voltage output

    Resistivity system voltage output

    One limit of FlashRES resistivity meter is its voltage output. It can output maximum voltage of 350v, this is because the multi-core cable of the FlashRES cannot withstand voltage over 350v. the multi-core cable contains 32 small wires, voltage ...

    David Graham

  • Third party inversion software

    Third party inversion software

    There are many popular third party resistivity inversion software, one example is the RES2DINV.exe and RES3DINV.ext. ZZ understands that our customers have their own preferences. Therefore we have converting software to convert our data format to ...

    David Graham

  • IP data collection

    IP data collection

    FlashRES resistivity meter collects 4*N voltages for each AB current injection. When operator sets the instrument collect IP data, the system will default the on time equals to the off time. ZZ finds sometime operators need customise their ...

    David Graham

  • Full waveform data display

    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, ...

    David Graham

  • The suitable battery for FlashRES resistivity meter

    The suitable battery for FlashRES resistivity meter

    Air freight battery pack is extremely diffculty in Australia, this makes installing internal battery to FlashRES resistivity meter counter-productive for ZZ. We thus use an external battery and connect it with our system. The correct external ...

    David Graham

  • ZZ array

    ZZ array

    ZZ array can only be used by FlashRES resistivity meter. the array collect 256 AB pairs in express mode, with each current AB injection measure 61 voltage data. In 20 minutes, ZZ array can collect 15,616 data points. Operator can set the On and Off ...

    David Graham

  • The exploration depth of FlashRES resistivity meter

    The exploration depth of FlashRES resistivity meter

    The formula for calculating the maximum depth is universal for all resistivity meters. The exploration depth depends on the survey line length. the survey depth is usually 20-25% of the survey line total length. For example, for 10m takeout ...

    David Graham

  • Roll along resistivity survey

    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. ...

    David Graham

  • The effective resistivity survey distance between two boreholes

    The effective resistivity survey distance between two boreholes

    For borehole survey, the effective survey distance works the same way the surface survey does. This means the wider the electrode takeout, the larger the exploration distance. The rule of thumb to calculate the maximum exploration ...

    David Graham

  • The key advantages of FlashRES resistivity meter

    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 ...

    David Graham

  • Resistivity applications

    Resistivity applications

    Archaeological application • Detection of buried tomb. Mineralisation exploration • Determining the size of ore deposit; • Determining the developing direction of ore deposit; • Mapping the distribution of ore deposit. ...

    David Graham

  • FlashRES application

    FlashRES application

    FlashRES resistivity system is very flexible in terms of application, it can perform: Surface surveys Surface borehole surveys Crosshole and multiple-holes surveys Surface-points surveys High efficient Mise a la Masse surveys 3D survey Time ...

    David Graham

  • Compare popular resistivity meters with FlashRES

    Compare popular resistivity meters with FlashRES

    Although most resistivity meters nowadays can collect resistivity, IP and SP data and most of these systems are multi-channal resistivity meters, there is still a technical gap between traditional and next generation resistivity meters. FlashRES ...

    David Graham

  • What is 61-channel resistivity meter?

    What is 61-channel resistivity meter?

    FlashRES resistivity meter has 64 electrodes, it uses one common ground electrode, two electrodes as current injection electrodes. For each current injection between A and B, the FlashRES resistivity meter measures the potential on ...

    David Graham

  • The amount of data FlashRES can collect in one hour

    The amount of data FlashRES can collect in one hour

    FlashRES can collect over 62k data points in one hour. Some of the 62k data however may not be useful to the operator. Operator needs assess the geological data to find which part of the resistivity data is less useful. ZZ provides data filtering ...

    David Graham

  • Surface-point resistivity survey - Case Study

    Surface-point resistivity survey - Case Study

    Drilling boreholes for exploration can be cost ineffective and time consuming. Doing surface-point resistivity survey can provide fast and accurate results, with known position of the target, FlashRES can utilize its electrodes in borehole to target ...

    David Graham

  • Crosshole resistivity survey case study 2

    Crosshole resistivity survey case study 2

    Crosshole resistivity survey to search out industrial waste water This exploration survey used the crosshole resistivity technique to observe whether or not an industrial waste water plant is leaking. Chemical analyses found that this specific ...

    David Graham

  • Mineral prospecting case study 2

    Mineral prospecting case study 2

    We had recently carried out a copper prospecting survey. Electrodes were placed on the surface at 5m interval, one cable was connected to electrodes on surface and another cable is put in to the borehole. After repeating the surveys at nearby ...

    Case study 2