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Preparing the avionics. For the LOC IV, we used the simple tilt sensor seen at the bottom, to electronically ignite the black powder ejection charge after apogee. Since I am flying an experimental motor with an uncharacterized thrust curve, I can’t estimate in advance how long of a delay to use from launch to apogee. So the magnetic tilt sensor can sense when the nose cone starts to point downward, and can pop the chute. (it’s important that the rocket not fall over between arming it and launch =) This avionic package was pulverized into rubble in the flight right after mine as that rocket did a ballistic nose dive into the playa. We recovered all the little bits, even the blue capacitor.
Above it is the more sophisticated MC1 motor controller, prepping for insertion into my Firestorm54. It logs altitude with a barometer and triggers the smaller drogue chute ejection charge at apogee with an accelerometer (since the barometric readings become irregular at the Mach transition). It uses the barometric sensor to deploy the main chute when the rocket slowly falls back to 800ft. altitude.
It interfaces to a PC to give a flight log. So I know that I broke 10K ft. with my Firestorm54 on an Aerotech K185 long-burn motor, and my friend Erik used it to successfully break Mach1 with his Vertical Assault on a K695 redline motor.
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Just thought I'd share this little tip with everyone on how to check to see if you need a sensor cleaning. I noticed a couple of spots in the top right corner of some of my photos and thought it was the lens at first. After switching lenses and seeing that the spots were still there I thought I'd investigate sensor cleaning procedures.
I found this site:
www.cleaningdigitalcameras.com/inspecting.html
that explains how to take a test shot (seen above) to see how much dust is on your camera sensor. As expected I have a couple of dark spots in the top right of mine ... and a bunch of others I hadn't noticed in my photos.
It's been just over a year since I got my camera so I'm going to send it in for a professional cleaning which will hopefully get rid of 99.99% of the dust.
Hope this tip proves helpful.
Do you clean your own sensor? I bought the MARUMI Low Pass Filter Cleaning kit which I will attempt to use next time I have dust on the sensor. Getting tired of having the camera shop do it.
Lighting details: SB800 on camera bounced off ceiling. SB600 handheld pointed at a 1m diameter reflector on the floor angled to point to me. Triggered with Nikon CLS.
Agfa Optima 6000 Pocket Sensor with 110 cartridge reloaded with 16mm Eastman Double-X negative film. Developed in R09 One Shot 1+60, 7 minutes at 20ºC.
photo-analogue.blogspot.co.uk/2017/09/agfa-optima-6000-po...
A live juvenile fish (left) and the previous version of the Sensor Fish (right) are shown side-by-side as they’re exposed to a simulated dam turbine environment. This test helped PNNL researchers correlate the injuries some fish experience with the Sensor Fish’s measurements.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory." Please use provided caption information for use in appropriate context.
Six Flags Great Adventure's Holiday at The Park ~ www.sixflags.com/greatadventure/attractions/swashbuckler
Canon EOS 30D
28.0-75.0 mm
ƒ/10.0 28.0 mm 1/4 400
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Here you can see the D40x sensor with its IR blocking filter removed. Without this filter, and without an IR passing filter, the D40x now records both IR and Visible light.
SNL Dennis Roach with a Comparative Vacuum Monitoring (CVM) Sensor showing galleries etched-sensors underside. He lead team that's evaluating some-sensors for Structural Health Monitoring (SHM) aircraft and safety equipment.
The Comparative Vacuum Monitoring sensor is a self-adhesive rubber patch, ranging from dime-to credit-card-sized. The rubber's underside is laser-etched with rows of tiny interconnected channels or galleries to which an air pressure is applied. Any propagating crack in the materials under the sensor breaches the galleries and the resulting change in pressure in monitored. The sensors are made by Structure Monitoring Systems, Inc. (SMS) of Australia, are in expensive, reliable, durable, and easy to apply. They provide equal or better sensitivity than is achievable with conventional inspection methods. Besides, aircraft, SHM techniques could monitor the structural well-being of spacecraft, weapons, rail cars, bridges, oil recovery equipment, buildings, armored vehicles, ships, wind turbines, nuclear power plants, and fuel tanks in hydrogen vehicles.
For more information or additional images, please contact 202-586-5251.
This was supposed to be entitled “a cloudy day” - meant as a joke because these were the only clouds in a vast sea of blue sky. The picture was ruined though by that bloody hair!
This is definitely not something you want to see on your pictures because that hair was obviously lodged on the sensor of my camera.
In the old film days you might have got a hair like that inside the pentaprism or on the focussing screen but they would not show up on your photos. Digital cameras though have a sensor inside which records the pictures. Any dust, or in this case a hair, on it will come out on every photograph you take.
Compact cameras are sealed to prevent this from happening but in a single lens reflex the sensor is exposed every time the mirror swings out of the way to take a photo.
Camera manufacturers have devised clever ways to try and keep the sensor clean by vibrating it each time the camera is switched on and off. That wasn’t going to shift this hair though; I had to remove it manually with a very soft sable brush.
Thankfully the trick worked but it was a HAIRY moment I can tell you!
Canon 5D MkII with Canon EF 70-200mm f/4L IS USM lens.
For those who've wondered at my probably annoyingly often references to the damage to my camera, here it is in all its glory.
The only reason I'm sharing this is because of the amazing flare my 10-20mm produced here.
New safety installation at the industrial railway of Stadler when crossing the main road. This system operates independently of the normal train protection. If a shunting loco stands above this sensor, the system can be activated by a smartphone app. Staad, Altenrhein, Switzerland, March 7, 2015.
This is the Oxygen Sensor, also called Lambda Sensor or O2 Sensor. It's screwed into the exhaust crossover to sample tailpipe emissions, and send a signal back to the ECU. For this project it's not necessary to remove the sensor, which is good since they are often corroded in place.
There are 4 wires inside the black wiring sheath;
2 white for the sensor heater
1 grey for sensor ground
1 black, the signal wire - the important one for us
Quick splash in the dishwasher a wee massage with a towel and put it all back together and get lovely crisp shots ... Thanks Google !
In the final version we poked the reed switch out more so it could be closer to the magnet on the wheel.
Arduino + Pmr + RTTY = Remote Temperature Sensor
emmanuelgranatello.blogspot.it/2012/08/remote-temperature...
Hi everyone...I was "smart" enough to listen to my friend who mentioned that it would be a good idea to use compressed air to clean the sensor...This is the result...took a snap of a white sheet of paper and noticed this crap was on there!!!
Obviously I went absolutely crazy!!! The stuff wouldn't come off...wouldn't evaporate and I was scared if I left it there too long it would burn a hole through the sensor filter and damage the sensor...so I did the most unspeakable act....
...
...
brace yourself...
...
...
yes...
...
...
I TOUCHED THE SENSOR!!!
I took out the softest thing I had at the time - my Spudz lens Cloth (I was out at the time) and wrapped it round the end of a pens ink tube and gently cleared it off...Its still there around the sides but it doesn't show up in pics anymore which is good...thank goodness it didn't scratch it!
No place near here cleans sensors so I just got a proper sensor cleaning kit which should *hopefully* arrive tomorrow morning...will clean it properly then...
Can you feel my pain?!
(Picture is of entire sensor uncropped...thats how bad it was)
Scintillating glass optical fibers are the first viable medium for large-area, solid-state, thermal neutron sensors that have applications in national security, medicine and materials research. Here, ultraviolet-induced fluorescence mimics scintillation.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory." Please use provided caption information for use in appropriate context.
Took this at 500mm plus the Sony x2 zoom plus the sensor 1.5 x crop factor... =1500mm @ 35mm.... from about 8 metres away....
T-stuk gebruikt om temperatuursensor met duikhuls in de waterstroom te krijgen. Dat reageert veel directer dan de sensor tegen de leiding monteren.
Er is nog voldoende ruimte tussen huls en binnenwand van de leiding om het water ongehinderd te laten stromen. Zie ook de Note.
Satellite: Sentinel-2. Sensor: MSI (MultiSpectral Instrument).
Visualization RGB: bands 4 (red), 3 (green), 2 (blue). True color.
Los domos de sal y glaciares salinos son una característica común de la cordillera de Zagros. Los domos de sal son un estadio de los diapiros salinos. Los diapiros son una estructura importante para la exploración de petróleo, ya que la sal impermeable atrapa con frecuencia el petróleo debajo de las capas de rocas. (Wikipedia). Bushehr (223.000 h) se encuentra en la esquina superior izquierda de la imagen.
Esta imagen ha sido procesada con el navegador EO Browser (apps.sentinel-hub.com/eo-browser) de Sentinel Hub. Sentinel Hub es un motor de procesamiento de datos satelitales, dentro del programa de observación de la Tierra Copernicus (copernicus.eu) de la Unión Europea, operado por la empresa Sinergise. EO Browser es gratuito y fácil de usar. El norte siempre está arriba.
This image has been processed using the EO Browser (apps.sentinel-hub.com/eo-browser) by Sentinel Hub. Sentinel Hub is a satellite data processing engine, within the European Union's Earth observation programme Copernicus (copernicus.eu), operated by the Sinergise company. EO Browser is free and easy to use. North is always up.