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This light sensor works reasonably well. Goodluckbuy list it as “Electronic Brick Light Sensor Brick Module” (SKU: 75283). That’s right brick is in there twice.
From what I could find I think made by Itead. The A-D switch lets you pick the type of output from the sensor. An analogue voltage or digital high/low. The switch point for digital is adjustable via the pot and the board uses an LM358 op-amp.
Programming and working out how to apply an analogue input value to automatically adjust an output brightness value for my series of 7-segment displays proved annoying and I had little success. I believe a lot more trial and error would be needed to make this and other displays adjust with the brightness of the room. Or perhaps I’m just a bit crap.
[iteadstudio.com/store/index.php?main_page=product_info&am...]
Satellite: Sentinel-2. Sensor: MSI (MultiSpectral Instrument).
Visualization RGB: bands 12 (red), 11 (green), 4 (blue). False color urban.
La imagen tiene 133 km de ancho (aprox.)
Saarloq es una localidad en la municipalidad de Kujalleq, al sur de Groenlandia, ubicado exactamente a 60°32′N 46°03′O, a unos 20 km de Qaqortoq. Tiene una población de 50 habitantes. (Wikipedia)
En el mar de Labrador, al sur de Groenlandia, se forman estas revueltas corrientes que parecen formar borrascas. Pero estas corrientes (de color azul intenso en la imagen) se hallan en la superficie del mar. Las nubes se ven en color blanco, como las que aparecen a la izquierda en la imagen. Este color azul representa zonas nevadas sobre tierra firme, como en las islas que se ven arriba y a la derecha en la imagen, donde se encuentra la citada localidad de Saarloq. Supongo que en el mar se trata de aguas muy frías, con temperaturas cercanas a la congelación.
Saarloq is a settlement in the Kujalleq municipality in southern Greenland. Its population was 21 in 2020. It is located on a small island with the same name off the Labrador Sea coast, at the mouth of the Qaqortoq Fjord, west of Alluitsup Paa and 20 km south of Qaqortoq.
The settlement is the southernmost of the three settlements—along Eqalugaarsuit and Qassimiut—that made up the former Qaqortoq municipality. The settlements are presently governed by a joint settlement council. (en.wikipedia.org/wiki/Saarloq)
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.
At one time, I would take my digital cameras to a technician to clean my sensors. When the cost became prohibitive, I started cleaning my own.
Here are two Youtube videos that I found helpful :
QRD1114 Infra red sensors embedded in milliput, to get the infrared emitter diode and infrared phototransistor separated enough to have the fit either side of the sleepers on z-scale track.
The NEW HOBOnet Field Monitoring System from Onset provides a cost-effective and scalable solution for web-enabled monitoring of field conditions for applications such as crop management, research, and greenhouse operations.
Onset's wireless sensors are ready to deploy and easily link to the network, and data is accessed through the new version of HOBOlink®, Onset's innovative cloud-based software platform.
Key Advantages
• Lowest cost-per-measurement point
• Wide coverage with wireless mesh technology that can communicate through vegetation
• Scalable, with up to 50 wireless sensors streaming back to a central, cloud-based weather station
• Remote access to data and current conditions with a customizable dashboard for analysis
• Alarm notifications when conditions reach user-set thresholds
Satellite: Sentinel-2. Sensor: MSI (MultiSpectral Instrument).
Visualization RGB: bands 8 (NIR), 4 (red), 3 (green). False color.
La imagen tiene 30 km de ancho (aprox.)
En la visualización en falso color la vegetación se ve en color rojo, mientras que las ciudades y el suelo desnudo se ven en tonos de ocre. En color gris claro se destaca n los ssedimentos de la estrecha llanura de inundación del río Irawati.
The source of the Indravati River is located in the south-facing slopes of the Himalayas. Its upper course is characterized by a steep gradient, precipitous slopes, huge boulders and rocks in the river valley, and large rapids. It flows through alpine, sub-alpine and temperate forests. Settlements occur along its lower course. The Indravati's catchment area includes the eastern slopes of the Kathmandu basin and extends to the Indravati – Sun Koshi water divide. (en.wikipedia.org/wiki/Indravati_River_(Nepal))
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.
PNNL researchers release sensor fish at Ice Harbor Dam as part of testing of a new turbine. The sensor fish is an autonomous sensor that measures pressure, velocity, and acceleration that a fish experiences as they pass through the dam.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Andrea Starr | Pacific Northwest National Laboratory"; Please use provided caption information for use in appropriate context.
This appears to be an optical sensor for a mouse according to some stuff I found online, but I am not sure since there is very little official documentation of this chip.
It is made by STMicroelectronics and the date 2001 is visible in the bottom right.
It is encased in clear plastic and the batch of chips I got it from unfortunately scratched some of the the plastic (bottom left).
In person the dark square region at the top is much more profound than it is through the microscope.
There are markings in all four corners, the ST logo as well as the 2001 date are in the bottom right while the top right has "VV5351B" despite the package being labelled as VV5351A.
This image is the largest PNG I can upload (less than 200MB).
Camera: SONY A6000
Number of Images: 65
Panorama Y Axis: 13 Images
Panorama X Axis: 5 Images
Individual Image Size: 6000x4000
ISO: 100
Shutter Speed: 1"
Light Source: Side LED Flood Light
Overlap: 50%
Microscope Objective: 10X
Microscope Eyepiece: DSLR Mount (2X)
Grid Used: 4x4 (Panning Movement Aid)
Capture Motion: Zigzag (Top->Down)
Stitching Software: Autopano Giga
Other Software: GIMP for colour correction, rotation and sharpness.
Image Type: PNG
The HOBOnet TEROS 21 is a wireless sensor that works with the HOBOnet system to measure both soil temperature and soil water potential, a more accurate way to measure how much water is available to plants. The HOBOnet TEROS 21 Sensor is designed to withstand harsh environmental conditions, and it doesn’t require calibration for different soil types or salinity.
The HOBOnet system is a cost-effective and scalable option for web-enabled monitoring of field conditions for applications such as crop management, research, and greenhouse operations. And because it’s wireless, you can deploy a network of sensors to easily monitor multiple points with a single system, while avoiding the risk of long cables that can interfere with field operations and are potentially vulnerable to nearby lightning strikes.
Sensors are easily linked to the network, and data can be accessed through HOBOlink®, Onset's innovative cloud-based software platform.
• Highlighted Features
• Soil water potential and soil temperature measurements with one device
• A more accurate picture of the amount of water available to plants than volumetric water content sensors
• No calibration required for soil type or salinity
• Long-lasting and maintenance-free with durable epoxy construction
• Wide measurement range: -9 to -2000 kPa
First results of the new line sensor TSL1401CL 128 pixels at 400 dpi resolution. This signal show the piek level of the green laser on a white surface reflection. The signal is here is saturated due to the white surface.The intergration time is 47.5 us and the scan time is 70 usec. Even on a black surface the signal is about 1V. The readout of the analog signals are done by 2 ADC convertors type ADS7885 here at 32 MHz clock. The line sensor is more sensive compared to the previous version TSL202R at 200 dpi.
For the optic see:
All soldered together, working, and sealed up in a nice box. Now just to write software to do something interesting with it.
As part of an IAEA training course on nuclear security, an outdoor tour is conducted at Japan’s Physical Protection Exercise Field, part of its Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN), in Tokai-Mura. ISCN training courses combine classroom learning on key concepts with exercises and demonstrations. Participants gained hands-on experience with real equipment and measures that States employ to strengthen physical protection of nuclear material and facilities. (June 2017)
Japan is a member of the International Network for Nuclear Security Training and Support Centres (NSSC Network), which was established by IAEA Member States in 2012 to facilitate sharing of information and resources and to promote coordination and collaboration among states with an NSSC or those having an interest in developing a centre. The 2018 NSSC Network Annual Meeting will be hosted at ISCN, 5 – 9 March 2018.
Photo Credit: Dean Calma / IAEA
LECTURERS:
Nicolas Daniel Delaunay
Institute for Radiological Protection and Nuclear Safety
Axel Hagemann
IAEA Consultant from Germany
Miroslav Gregoric
From Slovenia
Reina Matsuzawa
ISCN, Japan Atomic Energy Agency
Yo Nakamura
ISCN, Japan Atomic Energy Agency
IAEA OFFICERS:
Shigeaki Sato
IAEA Nuclear Security Officer
Division of Nuclear Security
Department of Nuclear Safety and Security
Danielle Dahlstrom
IAEA Outreach Nuclear Security Officer
Division of Nuclear Security
Department of Nuclear Safety and Security
Agfamatic Sensor 100, Germany, 1971.
What must be the best, most minimalist case ever designed for a camera.
The Agfamatic 100 is a viewfinder camera for Pak-Film 126 cassettes. It has an Agfa Colorstar lens with fixed focus and fixed aperture. Two shutter speeds are selectable with the ring around the lens barrel, the scale showing a cloud and a sun symbol. The camera has a single stroke advance lever that advances the film, cocks the Parator shutter and turns the flash cube holder on which magicubes can be fired as flash. On the axis of the advance lever is the red "sensor", the shutter release button hidden under a round piece of red foil.
-Camerapedia
A map of the pentax autofocus sensors. Contrary to what the indications in the viewfinder, these sensors are not points but are T and L shaped on the sides and a cross in the middle. Only the 9 points in the middle are cross sensors.
Une carte des zone d'autofocus. Contrairement à ce que le viseur laisse supposer les "points" d'autofocus ne sont pas des points mais des L et T sur les bords et une croix au milieux. Seuls les 9 points du milieu sont de type "croisé" (ils détectent un contraste aussi bien vertical qu'horizontal).