Earthship
For those not familiar with this term, it was popularized by Micheal Reynolds to describe his design for an earth sheltered dwelling which makes extensive use of rubber tires filled with rammed earth.
Liquid Level Monitor
Project Overview
An integrated system for monitoring the volume of fluid contained in each of several irregularly shaped holding tanks aboard a marine vessel, the M/V Alaskan Legend.
Tasks Performed
Survey of current commercial offerings and applicable technology in the marketplace
Turnkey solution designed primarily for petroleum industry tank farms deemed inapplicable due to inability to tailor response for arbitrary tank shape.
Cost / performance comparison of available hardware to avoid overbuilding.
Sensor choice driven by concern for ease of installation and service without draining the tank.
System design and CAD model
Power budgeting to minimize the need for additional supply.
3D Enclosure design to ensure adequate space for hardware, while minimizing overall dimensions.
Specification and procurement of required hardware
Sensor calibration and installation
Addition of a calculated resistance to ensure that input falls within required range of 4-20 mA, while maximizing sensor resolution.
Enclosure assembly and packaging
Machining operations to accommodate controls, gauges, graphics panel.
Associated wiring and conduit.
Tank geometry analysis and characterization
Digitization of existing hard copy blueprints to obtain tank geometries.
Correlation of fluid level / volume behavior according to piecewise polynomial functions.
Software authoring
Ladder logic programming.
Sensor input interpretation and conditional response.
Graphical user interface and menu control.
System Commissioning & Troubleshooting
Correspondence and collaboration with hardware manufacturer technical support.
System response verification.
Ongoing client support and followup.
Mountainside Gardens
Construction and development of a small retail store. http://www.mountainsidegardens.com/
M/V Alaskan Legend
Maintenance, repairs, and modifications on a 76' aluminum motor vessel. You can link to an external page to learn more about this luxury charter yacht here.
Ehben Eliot
