ULTRASONIC TANK METEOROLOGICAL SENSOR

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 6015
Amount: $49,600.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
317 - 7th Ave Se, Cedar Rapids, IA, 52401
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 ROBERT D JOY
 (319) 366-7511
Business Contact
Phone: () -
Research Institution
N/A
Abstract
KNOWLEDGE OF THE AIR PRESSURE, TEMPERATURE AND HUMIDITY ARE REQUIRED FOR SOLUTION OF THE TANK FIRE CONTROL ALGORITHMS. THE SEVERE ENVIRONMENT OF THE TANK MAKES THE USE OF CONVENTIONAL SENSING TECHNIQUES VERY DIFFICULT. THE TRANSMISSION EFFICIENCY OF AN ULTRASONIC SIGNAL IS SHOWN TO BE DIRECTLY DEPENDENT UPON THE ABSOLUTE AIR PRESSURE AND INVERSELY PROPORTIONAL TO THE ABSOLUTE TEMPERATURE. THE SPEED OF SOUND IS ALSO PROPORTIONAL TO THE ABSOLUTE AIR TEMPERATURE AND BY MEASURING BOTH THE RECEIVED SIGNAL LEVEL AND TIME DELAY, BOTH THE TEMPERATURE AND PRESSURE CAN BE DERIVED. BY PROPER CHOICE OF THE ULTRASONIC FREQUENCY, THE ULTRASONIC LOSS IS ALSO AFFECTED BY MOISTURE CONTENT IN THE AIR. THE USE OF TWO ULTRASONIC FREQUENCIES CAN THEN ALSO DETERMINE HUMIDITY LEVELS.

* Information listed above is at the time of submission. *

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