RATAN-600 Radiometer = 2.7 cm . ... Front end amplifier . ... System noise temperature . ... Switching Radiometer . ... a cooled reference . ... Feed Horn . ... Noise generator . ... S1, S2 - latching circulator switches, . CI - cooled ferrite isolator, . ... NG1 - noise generator for calibration, . NG2 - balance noise generator, . ... The input feed horns H1 and H2 are connected alternatelly to HEMT amplifier. ... 1 - cooled modulators ( latching circulator switches ), . ...

... page modification history gain curves sefd curves system performance (all receivers) cal values focus curves system temperature multi frequency measurements temperature: platform,bowl,turret room, gain dependence stokes calibration miscellaneous . ... Alfa multi beam . ... sband wide (1.7-3 Ghz) . ... cband (4-6 Ghz) . ... System Temperatures all rcvrs . ... galfacts caldeflection (alfa gain stability) . ... Ao compute server list . ... System gain stability vs rotary floor room temperature (cband) ...

... The design, fabrication and testing of a reliable, low-cost, multiplexed temperature measurement system with a resolution and stability approaching 0.01њ C is described. This system, with 176 temperature sensors, will be used to monitor the performance of a 3.5 m borosilicate mirror ventilation system. ... We have assembled and tested a simple and reliable temperature measurement system with 176 sensors and a differential drift over two weeks of less than 0.07њC peak to peak. ...

... HST . ... Missions . ... Data . ... Hubble Heritage Project . Future Missions and . ... HST Overview . Overview . ... Phase I Proposing . ... Cycle 24 Announcement . ... Phase II Cycle 23 . ... Retrieving HST Data . ... NOTE: This tool creates darks for data taken BEFORE January 4, 1999! These darks will not properly calibrate any data taken during Cycle 11 and beyond. A web-based tool to generate temperature-dependent dark current reference files for MULTIACCUM data is now available. ...

INFRARED FOURIER-SPECTROMETER SICH-F . ... Instrument work regimes: 1) Inside. 2) Calibration at inside standard sources 2 - 4 times per a rotation. 3) Calibration at "free space" 2 - 4 times per a rotation. 4) Infrared radiation measuring 10 - 40 min. per a rotation. ... Spectrometer consists of the photodetector block and the block of signal processing and control. ... Diagnostic information and attach data will transfer by state telemetric channels. ... Detector temperature. ...

Spectral Line Sources Spectral Line VLBI Chris Phillips JIVE The Netherlands · VLBI High brightness temperatures · Masers : Galactic · OH, H2O, SiO, CH3OH Extragalactic · OH, H2O · Extra-galactic HI absorption Image courtesy of Lincoln Greenhill, CfA VLBI Group See also: Hernstein etal , 1999, Nature, 400, 539 Miyoshi etal , 1995, Nature, 373, 127 1 SiO masers in TX Cam Movie courtesy of Phil Diamond, Jodrell Bank SiO masers in Orion BN/KL Greenhill ...

Some Effects of Earthquakes, Temperature, Wind Stor ms and Barometric Pressure on the Inter ferometer at Hanford Robert Schofield Masahiro Ito Rauha Rahkola Evan Mauceli Ray Frey David Strom Jim Brau University of Oregon Some Concerns With Low Frequency Influences · Loss of lock · Need for increased servo loop gain · May eat up actuator range · Possible increased background in the LIGO frequency band · Possible modulation of noise in the LIGO band Guralp ...

SAS-7.1: status rep ort on EPIC-pn time jumps Marcus Kirsch + Michael Freyb erg ESAC + MPE Garching · History + theory · SAS-7.1: implementation and testing Michael Freyb erg MPE Garching XMM-Newton EPIC Calibration Meeting, Mallorca, 06/07 Nov 2007 1 EPIC-pn frames · Intrinsic EPIC-pn time resolution: 40 ns (25 MHz oscillator) · PNAUX1 ... Michael Freyb erg MPE Garching XMM-Newton EPIC Calibration Meeting, Mallorca, 06/07 Nov 2007 11 ...

. Next: Diameters Up: Stellar parameters from calibrations Previous: Gravities Contents . Temperatures of stars are derived from their spectral type and luminosity class. Calibrations are stored in files spec_par.V, spec_par.IV, spec_par.III, spec_par.II, spec_par.I in oyster/starbase . teff_stars Compute effective temperature for all stars in startable. teff_star ( spectrum _char ) Function. Return effective temperature for star with specified spectrum. Christian Hummel 2015-04-28

... Printed in the UK amplifier with external mm-wave pumping and its testing by junction noise DC SQUID RF M A Tarasov, V Yu Belltsky, G V Prokopenko, L V Flllppenko and V P Koshelets Institute of Radio Engineering and Electronics, USSR Academy of Sciences, Marx Avenue 18. ... Moscow 103907, USSR SIS 1 .. ... The power gain and the noise temperature of a oc SOUID RF amplifier at a signal frequency 400 MHz were measured in the presence of external microwave radiation at 2 cm. 8 mm and 4 mm wavelengths. ...

... With McMath, Robert R.; Mohler, Orren C. Telluric Bands of CH 4 in the Solar Spectrum. 1949 v.109 p.28 . With Mohler, Orren C.; McMath, Robert R. New Solar Lines in the Spectral Region 1.52-1.75 . ... With Mohler, Orren C.; Pierce, A. Keith; McMath, Robert R. New Solar Lines in the Spectral Region 1.97-2.49 . ... With Mohler, Orren C.; Pierce, A. Keith; McMath, Robert R. Table of Infrared Solar Lines, 1.4-2.5 . ... With McMath, Robert R.; Mohler, Orren C.; Pierce, A. Keith . ...

Next: Proxy Climate Indicators Using Up: C.J. Butler, Research Astronomer Previous: C.J. Butler, Research Astronomer . The three long temperature series from Armagh, namely the maximum and minimum temperatures (1843-present), the twice-daily outside temperatures (1795-1882) and the twice-daily dry-bulb temperatures (1844-1965) have been recalibrated and averaged to form a single long temperature series from 1796 to 2003. ...

The success of any ALMA phase-calibration strategy, which incorporates phase transfer, depends on a good understanding of how the atmospheric path delay changes with frequency (e.g. Holdaway Pardo 2001). ... We find the wet dispersive path delay becomes a significant fraction ( 5 per cent) of the non-dispersive delay for the high-frequency ALMA bands ( 160 GHz, Bands 5 to 10). ... The full text of the memo is available here . ... Dispersive path delay . 2009 Emily Curtis ...

... August, 31st -- the command on switching on of the second onboard hydrogen maser has been given. ... At the same day (August 31st) for the functioning checking, all the scientific devices and units of the focal container have been switched on: the shaper of heterodyne micro-wave frequencies, the micro-wave signals selector, the block of pulse calibration, the control and analysis block (BUAS-F), four termostats of receivers on 18 and 92 cm. ... There are no remarks to the devices operation. ...

Sensors and Transducers . ... American Electronics Components sensors, switches, relay . ... California Fine Wire position sensors . ... Contact Pressure Systems pressure data aquistion systems . ... Elmwood thermostats, heating elements, thermal fuses, temperature sensors . ... Gems Sensor transducers . ... Macro Sensors lvdt sensors and transducers . ... McGill Electrical photoelectric sensors . ... Sensor Development force, torque, rotational speed, and temperature sensors and interfaces . ...

... Because of the Sun 's UV radiation, Earth 's upper atmosphere is partly (0.1% or less) ionized plasma at altitudes of 70-1500 km. ... Around the plasma density maximum (F-layer, see below) a so-called ionospheric waveguide is formed for magnetosonic waves . ... It is interesting to note that this works also the other way round and, for example, the auroral kilometric radiation created by the precipitating particles high above the ionosphere does not reach the ground because of the ionospheric E...

... Because of the low conductivity, the magnetic coupling is weak and depends critically on density, temperature, ionisation rate and charged species. ... Implications When the Hall regime dominates near the midplane and ambipolar diffusion is dominant closer to the surface, a thicker layer of the disc is unstable to MRI perturbations and modes grow faster than under the ambipolar diffusion approximation. ... Right panel: For weak coupling, Hall limit perturbations grow until vA/cs ~ 2.9. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Remote Sensors . ... TS34C-M Wireless long range remote temperature sensor . ... Wireless long range remote temperature sensor #TS34C-M. Reads outdoor temperature in degrees Fahrenheit as well as humidity and transmits up to 328 feet (100 meters). ...

The Laboratory of Electronic Kinetics ( LEK ) has powerful radio-frequency, microwave , cryogenic and high- magnetic - field sets of equipment , allowing to carry out precision phase-sensitive measurements of current and voltage in a frequency range 0-10 MHz and the microwave response of crystalline materials in cm-and mm- wavelength range in the temperature interval (0.1-300) K and in magnetic fields up to 18 T. Methodical principle of ... Magnetic field up to 18 T . ... Equipment . ...

... Calibration and sensitivity measurements for tests of microwave radiometers. ... The instrument consists of two waveguide matched loads operating at ambient temperature and two matched loads, cooled at variable temperatures. The temperatures are microprocessor-controlled. The test version of instrument is available. ... Dimensions                                          450 350 550 mm . ... Output temperature                                            100–350 й . ...