SOURCES SOUGHT
66 -- Two-Tip Fiber-Optical Probe
- Notice Date
- 2/23/2004
- Notice Type
- Sources Sought
- NAICS
- 334516
— Analytical Laboratory Instrument Manufacturing
- Contracting Office
- Department of Agriculture, Agricultural Research Service, Southern Plains Area Office, 7607 Eastmark Drive, Suite 230, College Station, TX, 77840
- ZIP Code
- 77840
- Solicitation Number
- Reference-Number-R7-7MN1-2004
- Response Due
- 3/9/2004
- Point of Contact
- Michael Douglas, Contract Specialist, Phone (979) 260-9480, Fax (979) 260-9413, - Michael Douglas, Contract Specialist, Phone (979) 260-9480, Fax (979) 260-9413,
- E-Mail Address
-
mdouglas@spa.ars.usda.gov, mdouglas@spa.ars.usda.gov
- Description
- The Southern Plains Area for the Agricultural Research Service, of the U.S. Department of Agriculture intends to issue an award to RBI Instrumentation et mesure, 1 chemin de la Dhuy, ZAC de Maupertuis, 38240 MEYLAN, FRANCE. This is a sole source procurement under the authority of FAR 6.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements. This notice of intent is not a request for quotations (RFQ) for competition. This is a simplified acquisition. The USDA, ARS, Hydraulics Engineering Research Unit, in Stillwater, Oklahoma, USA requires 1 Two-Tip Fiber-Optical Probe. The fiber-optical device consists of three components: (1) a fiber optical probe, (2) an opto-electronic module and (3) a computer interface board. The later serves to save and visualize the results. This system is specifically designed and configured for local air concentration and velocity measurements in air-water free surface flow. The size of the probe tip (.1mm), the probe tip material (saphire), and the strength of the probe fixture are all customized features, which allow this probe to be effectively used in stepped spillway research. The measuring principle is based on the different refraction indices of the air and water phases. The opto-electronic module transmits light through an optical fiber, which is connected to the probe located in the flow. The sensitive probe tip is sharpened into an optical prism through which a fraction of the light escapes, the rest is reflected according to the refraction index of the phase at the probe. In clear water virtually no light is reflected, whereas in dry air all light is reflected. The optical signal is transferred into an electrical signal by means of a photosensitive diode. The fiber-optical system has the following advantages compared to conventional resistivity probes: 1. Signal transfer is much faster, the signal response time being only 0.033 s compared to 10 s. 2. Sampling frequency of 102 to 103 kHz is a least one order of magnitude larger than the conventional frequency. 3. Size of the probe tip (.1mm) is considerably smaller, so that both tiny bubbles of about the probe tip diameter can be detected and the disturbance to the flow remains small. This device is not an off the shelf product but rather a custom designed system customized specifically for stepped spillway research. Questions should be received within 14 calendar days of this published notification. Questions may be directed to: Michael A. Douglas, Contracting Officer at (979) 260-9480 or Fax: (979) 260-9413. NOTE: THIS NOTICE MAY HAVE POSTED ON WWW.FEDBIZOPPS.GOV ON THE DATE INDICATED IN THE NOTICE ITSELF (23-FEB-2004). IT ACTUALLY APPEARED OR REAPPEARED ON THE FEDBIZOPPS SYSTEM ON 10-SEP-2004, BUT REAPPEARED IN THE FTP FEED FOR THIS POSTING DATE. PLEASE CONTACT fbo.support@gsa.gov REGARDING THIS ISSUE.
- Web Link
-
Link to FedBizOpps document.
(http://www.eps.gov/spg/USDA/ARS/SPAO/Reference-Number-R7-7MN1-2004/listing.html)
- Place of Performance
- Address: 1301 N. Western, Stillwater, OK
- Zip Code: 74075
- Country: USA
- Zip Code: 74075
- Record
- SN00670562-F 20040912/040910213651 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)
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