Department of Commerce, Mountain Administrative Support Center, Procurement Division, MC3, 325 Broadway, Boulder, CO 80303-3328

52 -- RESONANT ULTRASOUND SPECTROMETER WITH LOW-TEMPERATURE SYSTEM SOL 52RANB60C020 DUE 021396 POC Doug Hargrove (303) 497-3513 The National Institute of Science and Technology intends to purchase a resonant ultrasound spectrometer (RUS) custom configured as follows: One-packaged system that can produce correct results immediately after delivery. Minimum specifications are: 1. ANALYSIS: a. Find all the resonant frequencies in few seconds between the frequency ranges. b. Find all internal frictions associated with the resonant frequencies. d. Calculate the elastic constants from the resonant frequencies: isotropic, cubic, hexagonal, tetragonal, and orthorhombic symmetry. 2. ANALYZABLE SPECIMEN SHAPES: cylinder, parallelepiped, cube, sphere. 3. X-Y-Z MICROMETER STAGE FOR SMALL SPECIMEN: a. accommodate 0.2 to 17 mm specimen sizes. b. one lithium niobate transmitting transducer with diamond cylinder (back load). c. one lithium niobate receiving transducer with diamond cylinder (back load). 4. CRYOSTAT: a. Vacuum flask container with a small stage, liquid helium dewar with piping and valves (Los Alamos National LLaboratory: Migliori design). b. Transmitting and receiving wide band transducers (standard parallelogram 2-transducer-micrometer stage) that can withstand 4 K. c. controlled by the computer (item no.7). d. temperature range 4K - 300 K. e. accommodate 0.2-17 mm body diagonal) specimen sizes. f. temperature sensor- 0.1 K accuracy in the temperature range. 5. TEST NEST STAGE FOR LARGE SPECIMEN (ADJUSTABLE): accommodate 0.6 to 100 cm specimen sizes: a. one PZT transmitting transducer with alumina tip. b. two PZT- dual receiving transducers with alumina tip. c. one dummy supporting tip. 6. TOTAL COMPUTER CONTROL: a. AT-Bus controlled frequency synthesizer; frequency of 0.0058 Hz (or 0.01 %) resolution and 25 MHz clock speed; 10 Hz - 4 MHz range; 1mV - 20 V output variable. b. A/D converter; 16 bits or higher; 50000 samples per second. c. Dual heterodyne receiver; S/N 100 dB or better. d. Minimum of 1000 samples per second capacity. 7. IBM COMPATIBLE PC-COMPUTER: a. cpu - 486/66 DX with math-coprocessor or faster computer. b. built-in hard drive (500 Mb or greater). c. standard rack mount. 8. User documentation (operations and maintenance manual). 9. Delivery within 30 days of order receipt (60 days for cryostat). 10. One year warranty. 11. Training at the company (2 days). This synopsis published for informational purposes only; solicitation is not available; no telephone requests accepted. Only qualification statements considered at this time. In the absence of other qualified sources, it is the intent of the Government to negotiate a sole source contract under the authority of 41 USC 253(c)(1) with Quatrosonics, Inc., 4209 Balloon Park Rd. NE, Albuquerque, NM 87109, See Note 22. (0046)

Loren Data Corp. http://www.ld.com (SYN# 0198 19960216\52-0002.SOL)