instruments:ceilo:ceilometer
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
instruments:ceilo:ceilometer [2014/01/17 12:05] – [Specifications] jan | instruments:ceilo:ceilometer [2020/02/06 09:09] – [Principle] jan | ||
---|---|---|---|
Line 1: | Line 1: | ||
====== Ceilometer CT25K ====== | ====== Ceilometer CT25K ====== | ||
- | // | + | |
+ | // | ||
===== Principle ===== | ===== Principle ===== | ||
- | A ceilometer measures the cloud base height, | + | A ceilometer measures the cloud base height, |
===== Instrument ===== | ===== Instrument ===== | ||
- | {{: | + | {{: |
- | Current setup at [[http:// | + | Current setup at [[http:// |
===== Data ===== | ===== Data ===== | ||
+ | * If you are interested in receiving data please contact the instrument mentor: // [[http:// | ||
- | [[http:// | + | * [[http:// |
Line 27: | Line 29: | ||
^ Period | ^ Period | ||
| 10/2010 - today | [[http:// | | 10/2010 - today | [[http:// | ||
- | | summer months | + | | 09/2007 - 10/2010 | [[http:// |
- | | winter months | + | | winter months |
| 2006 - 2007 | Nangatchori, | | 2006 - 2007 | Nangatchori, | ||
Line 42: | Line 44: | ||
| Average Power | 8.9 mW | | | Average Power | 8.9 mW | | ||
| Pulse Width | 100 ns | | | Pulse Width | 100 ns | | ||
- | | Repetition Rate: | 5.57 kHz | | + | | Pulse Repetition Rate (PRR): | 5.57 kHz | |
- | | Number of pulses: | 65,536 | | + | | Number of pulses |
+ | | Averaging time: | 11.7sec (=PQTY/PRR) | | ||
+ | | Time resolution | 15sec ((=> 3.3sec for processing and data transmission)) | ||
| Range resolution | 50ft = 30m (see [[internal: | | Range resolution | 50ft = 30m (see [[internal: | ||
- | | Time resolution | 15sec | | + | | Range | 200...25,000 ft. (60...7500 m) | |
- | | Range | 0...25,000 ft. (0...7.5 km) | | + | |
| Laser Divergence | ± 0.53×0.75 mrad (edge×diagonal((the laser is a diode with square shape. The beam thus a pyramid with different opening angles for neighbouring and opposite edges))) | | | Laser Divergence | ± 0.53×0.75 mrad (edge×diagonal((the laser is a diode with square shape. The beam thus a pyramid with different opening angles for neighbouring and opposite edges))) | | ||
| Field-of-View Divergence | ± 0.66 mrad | | | Field-of-View Divergence | ± 0.66 mrad | | ||
| Telescope diameter | 145mm | | | Telescope diameter | 145mm | | ||
+ | | Tilting angle | 2.5° as of Aug 21 2015 (7° before...) | ||
| Size | 760 x 280 x 245 mm | | | Size | 760 x 280 x 245 mm | | ||
| Power Consumption | 365 W | | | Power Consumption | 365 W | | ||
| Weight | | Weight | ||
- | | + | | Manufacturer |[[http:// |
instruments/ceilo/ceilometer.txt · Last modified: 2022/12/19 17:17 by jan