PPT-Absolute Length Measurement of the Caltech 40 Meter Interferometer's Optical Cavities

Alberto Stochino Koji Arai Yoichi Aso Rana Adhikari Motivations Why Size Does Matter Cavity Characterization Optics metrology Thermal Lensing Effects Cavity and IFO More Accurate Modeling. ELIZABETH HANSEN. According to archeological records, which civilizations were the first to record. measurements. ?. Indus Valley Civilization-.  . 3000–1500 BC developed procedure . of standardization, using weights and measures, evident by the excavations made at the Indus valley . A. dvanced . M. etrology . U. sing . L. as. E. r . T. racers. John Dale. 2. Project Aim. To take Frequency Scanning Interferometry (FSI) from the lab into a product. 3. Frequency Scanning Interferometry (FSI) Absolute measurements. PHT 1261C Tests and Measurements. Dr. Kane. Definition – anthropometry. What is it?. Why is it important?. Anthropometric Measurements. What do we measure?. Edema. Localized swelling. Joint effusion. Albert Abraham Michelson. Michelson Interferometer. (1852-1931). Experimental set up. Effective arrangement of the interferometer. Circular fringes. ©SPK. Radius of nth dark ring. In Michelson interferometer. Naoyui. Koyama . Michelson interferometer. Use two lasers simultaneously. Laser . a. wavelength :. λ. a. Laser . b. wavelength :. λ. b. Laser . a. and laser . b. do not interfere each other. Naoyui. Koyama . Michelson interferometer. Use two lasers simultaneously. Laser . a. wavelength :. λ. a. Laser . b. wavelength :. λ. b. Laser . a. and laser . b. do not interfere each other. 1. Vocabulary. beaker. – a wide mouthed container with a pouring spout used in science labs . graduated . cylinder. – a tall cylindrical shaped container used to measure the volume of a liquid. Segment Optics and Space Instruments. 1 . Department of Electrical and Telecommunications Engineering, New York City College of Technology. 2. Instrument Systems and Technology, Optics Division, NASA Goddard Space Flight Center. 5: Optical Resonant Cavities. Prof. Juejun (JJ) Hu. hujuejun@udel.edu. Optical resonance and resonant cavities. Optical resonant mode. A time-invariant, stable electromagnetic field pattern (complex amplitude): an .  . Warren Schappert. TD/SRF.  . . Fermilab. Tuesday, September 22, 2015.  . 10:30 am .  . Curia II (WH2SW). Laser Vibrometry for ILC Cryomodules. In 2007 the TD/I&C department was tasked to measure vibrations of the quadrupole in the first ILC type cryomodule, CM1. Dan Wagner. Hydrologist . Arkansas Water Science Center. . Hydroacoustics. Webinar. May 24, 2010 . Outline. Description of ADC. Results of USGS Testing. New USGS Firmware / enhancements. ADC History. System of measurement based on the decimal or powers of 10. The word ’metric’ comes from the French word for ‘measure’. Official name of the metric system is the . international system of measurements. OTT ADC Acoustic Digital Current Meter: Description of meter and Results of USGS testing Dan Wagner Hydrologist Arkansas Water Science Center Hydroacoustics Webinar May 24, 2010 Outline Kate Hall. Metric Units of Measurement. Length. Millimeter (mm) – 10 mm = 1 Centimeter. Centimeter (cm) – 100 centimeters = 1 meter. Decimeter (dm) – 1 decimeter = 10 centimeters. Meter (m) - 1 meter = 100 centimeters.