MEASUREMENT OF ICE ACCRETION AND PERSISTANCE AT UNMANNED SITES

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$49,859.00
Award Year:
1990
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
12262
Agency Tracking Number:
12262
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2300 Canyon Blvd, Boulder, CO, 80302
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Geoffrey E Hill
(303) 449-5588
Business Contact:
() -
Research Institute:
n/a
Abstract
A SIMILAR METHOD TO MEASURING ICE ON A VIBRATING WIRE IS USED TO MEASURE PERSISTENT ICE ON SMALL STRUCTURES. THE MEASURMENT OF VIBRATION OF STRUCTURAL MEMBERS WILL UTILIZE AN ACCELEROMETER; IT PRODUCES A VERY SENSITIVE RESULTS FOR A WIDE DYNAMIC RANGE OF ATTACHED ICE MASS. A SMALL TAPPING MECHANISM WILL BE DEVELOPED TO INDUCE FREQUENCY VIBRATION. SIGNAL CONDITIONING AND PROCESSING ARE PROPOSED, INCLUDING USE OF A MICRO-CONTROLLER, A CRYSTAL CONTROLLED WAVE-LENGTH TIMER AND OTHER APPROACHES. PHASE I WILL CONSIST OF SEVERAL PRIMARY STEPS; 1) SELECTING APPROPRIATE ACCELEROMETERS(S) FOR A VARIETY OF STRUCTURAL MATERIALS TO BE TESTED; 2) ANALYZING THE VARIOUS OPTIONS FOR SIGNAL PROCESSING; 3) SELECTING APPROPRIATE POWER DEVICES; AND 4) PERFORMING BASIC TESTS TO ESTABLISH THE TECHNIQUE AND TO CLEARLY IDENTIFY THE ADDITIONAL RESEARCH NEEDED TO MKE THE PRODUCT COMMERCIALLY VIABLE. A WORKING SYSTEM AND A FINAL REPORT WILL BE PROVIDED.

* information listed above is at the time of submission.

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