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Related Manuals for Ohmic instruments UPM-30
Summary of Contents for Ohmic instruments UPM-30
- Page 1 UPM-30 MANUAL ULTRASOUND POWER METER www.ohmicinstruments.com Ohmic Instruments Sales: sales@ohmicinstruments.com 3081 Elm Point Industrial Drive Service: service@ohmicinstruments.com St. Charles, MO 63301 USA Phone (410) 820-5111 Toll Free(800) 626-7713 Fax (410) 822-9633 SF-SLS-565 (B)
- Page 2 Information contained in this manual is believed to be accurate and reliable; however, no responsibility is assumed by Ohmic Instruments for its use. Ohmic reserves the right to...
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Page 3: Table Of Contents
TABLE OF CONTENTS Introduction ................................... 5 Setting Up the UPM-30 ................................. 5 Operating Procedure ................................6 Water, Tank Size, Transducer Placement & Temperature Considerations ................7 Ultrasound Radiation Levels ..............................7 Theory of Measuring Ultrasound Power With the Radiation Force Method ................. 8 Specifications .................................. -
Page 5: Introduction
The reading should be 1.00 gram higher than the null reading. 8. When the UPM-30 is not in use, store the target and bracket inside the test tank and replace the water- tight lid. The lid will restrain the water during transit, reduce the absorption of air into the water, and pre- vent water contamination from foreign particles. -
Page 6: Operating Procedure
1.50 grams which gives a difference reading of 0.75 total gram force). Multiply 1. Place the UPM-30 on a level and stable surface. this difference in gram readings by the constant, 14.65. The formula for total radiated power in watts 2. -
Page 7: Water, Tank Size, Transducer Placement & Temperature Considerations
WATER, TANK SIZE, TRANSDUCER PLACEMENT & levels, will drive out dissolved air and air bubbles will be TEMPERATURE CONSIDERATIONS visible on surfaces in the tank. These bubbles can be Water as a Measurement Medium: The measurements gently brushed off. are to be performed in de-gassed water because ultra- sound propagation in water closely approximates that in Transducer Wetting and Placement: After tilting the tissues (see UL-1-1981, AIUM/NEMA Standard Publica-... -
Page 8: Theory Of Measuring Ultrasound Power With The Radiation Force Method
THEORY OF MEASURING ULTRASOUND POWER WITH THE RADIATION FORCE METHOD Sound is a form of energy that sets the particles in the isonated medium into vibrational motion. The particles then pos- sess a kinetic energy. If dP is the rate of the flow of this energy about an area dA, then the mean acoustic energy is: Eq. -
Page 9: Conversion Chart-From Grams To Watts
CONVERSION CHART—FROM GRAMS TO WATTS Measurement Measurement Measurement Watt Output Watt Output Watt Output Difference Difference Difference 0.10 1.47 0.58 8.50 1.06 15.53 0.11 1.61 0.59 8.64 1.07 15.68 0.12 1.76 0.60 8.79 1.08 15.82 0.13 1.90 0.61 8.94 1.09 15.97 0.14 2.05... - Page 11 9. CONTINUOUS WAVE MODE CERTIFICATION (Average Power) WATTS WATTS ALLOWABLE WATTS ALLOWABLE WATTS POWER POWER DIFF. DIFF. SELECT SELECT RANGE RANGE 7.4 - 12.6 3.7 - 6.3 SAT. UNSAT. SAT. UNSAT. Average of 3 Readings Average of 3 Readings WATTS ALLOWABLE WATTS WATTS...
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Page 12: Warranty
The warrantor may, at its option, replace Ohmic Instruments will be pleased to answer all application or the product in lieu of repair. With regard to any instrument re- use questions, which will enhance your use of this instrument.