SOURCES SOUGHT
66 -- VAFO Resistivity Meter
- Notice Date
- 7/1/2013
- Notice Type
- Sources Sought
- Contracting Office
- NPS, NER - Central MABO200 Chestnut Street, 3rd FloorPhiladelphiaPA19106US
- ZIP Code
- 00000
- Solicitation Number
- P13PS01218
- Response Due
- 7/12/2013
- Archive Date
- 8/11/2013
- Point of Contact
- Neil Gilligan
- E-Mail Address
-
neil_gilligan@nps.gov
(neil_gilligan@nps.gov)
- Small Business Set-Aside
- N/A
- Description
- Resistance Meter System Requirements Resistivity meters are an important part of archaeological explorations. Such meters provide archaeologists with the ability to "see" below the ground surface to identify archaeological features and deposits. Valley Forge NHP is seeking a high-resolution, large-area survey, probe-based soil resistance survey instrument with an integrated probe array and data processing software to provide a reliable, high quality survey system. Key requirements for the system: -The park plans to use the equipment to survey large areas and so the unit must be able to internally store in Flash memory up to 1 million readings and must have a battery life of a full work day (8hrs). - In order to function optimally in a variety of soils and at shallow depths, an output voltage of not more than 100V is required - The system must have a current variation of <0.1% in order to create the most accurate data - In order to permit a wide variety of collection techniques and to avoid interference from external electrical sources (such as the power grid) the system must have operating frequencies ranging from 72.5 Hz through 142.5 Hz as well as a user defined frequency - In order to function in very dry soil conditions the resistance meter must have a maximum contact resistance of at least 500 Kohm - The system must have an integrated multi probe system that will permit the configuration of different arrays such as Twin with spacing of 0.25m, 0.5m, 0.75m, 1m, 1.25m, 1.5m, 1.75m or 2m, 0.5m Wenner, 0.5m Double Dipole, and mini- Schlumberger. - The system must be able to collect data in an automated multiplex measurement mode in order to automatically configure and log data from the multi-probe arrays so as to be able to simultaneously identify near-surface and deeper features. This multiplexer must also be programmable in order to permit the park to configure and store park-specific measurement sequences - The system must have an integrated data processing software system to automate data download and to analyze the data collected - The system must permit the user to collect 800 uniformly spaced readings in a 20x20m square survey grid with 2 readings per square meter in less than 30 minutes
- Web Link
-
FBO.gov Permalink
(https://www.fbo.gov/spg/DOI/NPS/APC-IS/P13PS01218/listing.html)
- Record
- SN03104779-W 20130703/130701235055-0c38d59f66681794f1f85ff9fbe427fe (fbodaily.com)
- Source
-
FedBizOpps Link to This Notice
(may not be valid after Archive Date)
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