Unihedron
JASOMER UNIHEDRON SQM
Merací prístroj na sledovanie jasu oblohy (Sky Quality Meter). Uses: Find out how good the night or site REALLY is. Compare the sky brightness at different sites quantitatively. Document the evolution of light pollution in your area. Set planetarium dome illumination to Mimic the skies people are likely to experience elsewhere in the city. Monitor sky brightness through the night, night-to-night, and year-to-year. Determine which nights show the greatest promise for finding the 'faintest fuzzies'! Calibrate the effect of sky brightness on qualitative measures such as the Bortle Scale. Investigate how sky brightness correlates with the solar cycle and month-to-month Sunspot activity. Help provide local ground truth for future sky brightness prediction with the Clear Sky Clock. CCD users can make a correlation between the SQM reading and when the background reaches some ADC level. Features: Audible signal while measurement is in progress. Sky brightness displayed in visual magnitudes per square arcsecond. Infrared blocking filter restricts measurement to visual bandpass. Temperature in both Celsius and Fahrenheit as well as model number and serial number can be displayed with different button press sequence. Precision Readings at even the Darkest sites. Power-saving features designed in for maximum battery life. Reverse battery protection. Specifications: The Half Width Half Maximum (HWHM) of the angular sensitivity is ~ 42 °. Operates from 9V battery (included). Size 3.8 x 2.4 x 1 in. Maximum light sampling time: 8 0 seconds.
JASOMER UNIHEDRON SQM-L (S OPTIKOU)
SQM (Sky Quality Meter) je jednoduché zariadenie na meranie jasu oblohy vo viditeľnej časti spektra. Verzia L má zabudovanú optiku pred senzorom, sníma cca uhol cca 10 °. Meranie zobrazené na displeji udáva výsledok v mag / arcsec2, výsledok možno previesť na hodnotu v cd / m2. Ďalším údajom je orientačná teplota. Meranie v jasných oblastiach (okolí miest) je prakticky okamžité, meranie v naozaj tmavých miestach môže trvať až minútu. Prístroj je napájaný 9V batériou (je súčasťou dodávky), má funkciu automatického vypnutia, ktorá šetrí batérie. Prístroj je veľkosti škatuľky od cigariet (cca 90x65x27mm).
PÚZDRO UNIHEDRON PoE KRYT pre SQM
Špeciálne puzdro pre uloženie SQM-LU do vonkajších poveternostných podmienok s odolným PoE krytom. Je možné dodať aj verziu pre SQM-LE (Ethernet) vrátane rozbočovača. (2.720 Sk)
JASOMER UNIHEDRON SQM-LU-DL (S OPTIKOU, USB verzia)
Merací prístroj na sledovanie jasu oblohy (Sky Quality Meter). Verzia prepojiteľná s PC podobne ako sieťová verzia s prepojením cez USB rozhranie. Navyše možnosť lokálne logovať dáta na SD kartu.Součástí je 5m USB kábel.
JASOMER UNIHEDRON SQM-LU (S OPTIKOU, USB verzia)
Merací prístroj na sledovanie jasu oblohy (Sky Quality Meter). Verzia prepojiteľná s PC podobne ako sieťová verzia s prepojením cez USB rozhranie. Súčasťou je 5m USB kábel.
JASOMER UNIHEDRON SQM-LE (S OPTIKOU, SIEŤOVÁ VERZIA)
Merací prístroj na sledovanie jasu oblohy (Sky Quality Meter). Uses: Find out how good the night or site REALLY is. Compare the sky brightness at different sites quantitatively. Document the evolution of light pollution in your area. Set planetarium dome illumination to Mimic the skies people are likely to experience elsewhere in the city. Monitor sky brightness through the night, night-to-night, and year-to-year. Determine which nights show the greatest promise for finding the 'faintest fuzzies'! Calibrate the effect of sky brightness on qualitative measures such as the Bortle Scale. Investigate how sky brightness correlates with the solar cycle and month-to-month Sunspot activity. Help provide local ground truth for future sky brightness prediction with the Clear Sky Clock. CCD users can make a correlation between the SQM reading and when the background reaches some ADC level. Features: Sky brightness reported in visual magnitudes per square arcsecond. Infrared blocking filter restricts measurement to visual bandpass. Sensor temperature, model number, and serial number are provided. Precision Readings at even the Darkest sites. Field-upgradeable firmware Open protocol document Specifications: Ethernet connectivity Included applications for reading dáta in Java, C, Perl, Python. The Half Width Half Maximum (HWHM) of the angular sensitivity is ~ 10 °. The Full Width Half Maximum (FWHM) is then ~ 20 °. The sensitivity to a point source ~ 19 ° off-axis is a factor of 10 lower than on-axis. A point source ~ 20 ° and ~ 40 ° off-axis would register 3.0 and 5.0 magnitudes fainter, respectively. Operates from 5-6VDC adapter (included). Size 3.6 x 2.6 x 1.1 in. Maximum light sampling time: 80 seconds. Minimum light sampling time: 1 seconds. Specifications are subject to change without notice. What you get: SQM-LE unit Power adapter (120VAC input for North America customers, International adpatér for everywhere else) SQM-LE users manual CD with PDF manual and example softvér 6ft Ethernet cable Calibration sheet indicates unit MAC address, and calibration values