[Hidden-tech] Consulting Opportunity

[Paul Stallman]

There is a really good Vibrations company located right here in Western
Mass, I've forwarded this to one of their local guys.  Pete Roy.

IVC Technologies.

http://ivctechnologies.com/



Paul Stallman
Managing Director
paul at alias-solutions.com
413.364.6147
alias|solutions
www.alias-solutions.com

SCAN QR CODE TO ADD ME TO YOUR MOBILE PHONE





On Mon, Aug 15, 2011 at 9:30 AM, Calvin Swift <calswift at comcast.net> wrote:

>   ** Be sure to fill out the survey/skills inventory in the member's area.
>   ** If you did, we all thank you.
>
>
>
>  We have built an airborne instrument for a government customer that
> operates in the millimeter wave band that synchronizes the forward motion of
> the aircraft with cross track scanning about nadir to produce an image. The
> cross track scan is accommodated by means of an elliptical mirror that was
> specified to rotate at a maximum rate of 600 rpm. We conducted a flight test
> in November of 2010, and encountered two problems that need to be corrected.
> These problems are:
>
> 1.    Noticeable vibration was encountered due to an unbalance introduced
> by the elliptical mirror. The axes of the ellipse are 3.5” and 5.0”, and the
> material is Aluminum. The mirror is attached to a rotating shaft, driven by
> a DC motor.
>
> 2.    As a result of cold weather encountered on the day of the flight,
> data corresponding to the higher voltage outputs saturated, resulting in the
> loss of that data.
>
> We are looking for consulting assistance either from a “super” technician
> or a hands on instrumentation engineer to assist us in addressing these two
> problems for preparation of further flight-testing. The scope of the work is
> as follows:
>
> 1.    Vibration issue
>
> a.    The consultant will partially disassemble the instrument and work
> with our own engineers to assess and possibly work to correct the problem.
> Part of this activity will require learning to run computer programs that
> send commands to the instrument and record the data.
>
> 2.    Data saturation issue
>
> a.    The consultant will add insulation to the receiver enclosure and add
> heater strips controlled by thermistors. The consultant will work with our
> engineers during the execution of this task, and possibly design a feedback
> circuit to eliminate the possibility of saturation.
>
> 3.    Other work
>
> a.    Satisfactory performance during the first two tasks will possibly
> lead to further work on this project, such as building electronic
> calibration hardware, operating the refurbished imager for ground-based
> experiments, and participating in the flight tests.
>
>
> Knowledge of microwave/millimeter wave systems is helpful, but not
> required. Work can start immediately, and the project will last for 6 – 9
> months.
>
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