background preloader

Sensors

Facebook Twitter

PWM Definition from PC Magazine Encyclopedia. Sensor tutorials - Tilt sensors! Sensors Web Portal. How to use photocells, LDRs, CdS cells, photoresistors! PCB Piezotronics, Inc.- Sensors that measure up! Parallax Home. Phidgets Inc. - Unique and Easy to Use USB Interfaces. Brooke's Sensors page. There are a number of technologies that are used to sense magnetic fields.

Brooke's Sensors page

I have also included some places where magnetic fields are used like in MRI, NMR, particle accelerators that use super conducting magnets. 1 Oersted = 79.58 Ampere-Turns/Meter 1 nano tesla = 10 micro Oe = 1 Gamma 1 Tesla = 10,000 Gauss Papers about Magnetism - Journal of Magnetism and Magnetic Materials - For over 100 years, Elsevier Science has been dedicated to facilitating the exchange of information.

The Magnetic Measurements Handbook - NASA has a series of web pages devoted to magnetic topics called: The Great Magnet, the Earth & A Millennium of Geomagnetism Earth's Magnetic Field Magnetic Field Calculator - need Lat, Lon, elevation, can choose WWM2005 or IRGF 10 models. Outputs 7 components: The National Geophysical Data Center lists a number of models and is the key US web site for the Earth's magnetic field. The World Magnetic Model is updated every five years by the DoD. Compass Passive. Image sensor format.

Comparative dimensions of sensor sizes In digital photography, the image sensor format is the shape and size of the image sensor.

Image sensor format

The image sensor format of a digital camera determines the angle of view of a particular lens when used with a particular camera. In particular, image sensors in digital SLR cameras tend to be smaller than the 24 mm × 36 mm image area of full-frame 35 mm cameras, and therefore lead to a narrower angle of view. Lenses produced for 35 mm film cameras may mount well on the digital bodies, but the larger image circle of the 35 mm system lens allows unwanted light into the camera body, and the smaller size of the image sensor compared to 35 mm film format results in cropping of the image.

This latter effect is known as field of view crop. Sensor size and depth of field[edit] Three possible depth of field comparisons between formats are discussed, applying the formulae derived in the article on depth of field. And where is the relative crop factor between the sensors. Digital Camera Sensor Sizes: How it Influences Your Photography. This article aims to address the question: how does your digital camera's sensor size influence different types of photography?

Digital Camera Sensor Sizes: How it Influences Your Photography

Your choice of sensor size is analogous to choosing between 35 mm, medium format and large format film cameras — with a few notable differences unique to digital technology. Much confusion often arises on this topic because there are both so many different size options, and so many trade-offs relating to depth of field, image noise, diffraction, cost and size/weight. Background reading on this topic can be found in the tutorial on digital camera sensors. GlobalSpec - Engineering Search & Industrial Supplier Catalogs. Test and Measurement Sensors. HOW TO: Install and configure lm-sensors. Lm-sensors. SensorInstallHowto. Ubuntu can monitor CPU and other system temperatures, fan speeds, and voltages via command line, using the package lm-sensors, or via GUI applets in your desktop.

SensorInstallHowto

Install the lm-sensors package (see InstallingSoftware). Run sudo sensors-detect and choose YES to all YES/no questions. At the end of sensors-detect, a list of modules that needs to be loaded will displayed. Type "yes" to have sensors-detect insert those modules into /etc/modules, or edit /etc/modules yourself. Next, run sudo service module-init-tools restart This will read the changes you made to /etc/modules in step 3, and insert the new modules into the kernel. Allegro MicroSystems, Inc. Tactile Surface Pressure Indicating Film And Sensors. DirectIndustry - The Virtual Industrial Exhibition: sensor - automation - motor - pump - handling - packaging ...

Trossen Robotics - World's leading robot shop for robot kits and robot parts! Sharp IR Rangers Information. Introduction Sharp infrared detectors and rangers boast a small package, very low power consumption and a variety of output options.

Sharp IR Rangers Information

In order to maximize each sensor's potential, it is important to understand how these types of IR sensors work, their effective ranges, and how to interface to them. Theory of Operation There are two major types of Sharp's infrared (IR) sensors based on their output: analog rangers and digital detectors. Analog ranges provide information about the distance to an object in the ranger's view. These rangers all use triangulation and a small linear CCD array to compute the distance and/or presence of objects in the field of view. Sharp IR detector angle of reflection arrival for near and far object The incident angle of the reflected light varies based on the distance to the object.

Which Detector to Use? Comparison Chart for Sharp IR Rangers Sharp IR Range Comparison Mechanical Dimensions All of the Sharp IR rangers are approximately the same size except the 0A710. AMERICA - Sensors and Machine Vision Systems for Factory Automation. TURCK USA - Capacitive Proximity Sensors, Inductive Proximity Sensors, Connectors, Cables, Cordsets. Sensors, sensor, transducers, data systems, The world of sensors, transducers and data measurement systems. Sensor technology news and real-world sensor application. Gems Sensors & Controls - Pressure Switch, Level Switch, Liquid Level Switches & Sensors. Relative Humidity Sensor, Gas Flow Sensor, Mass Flow Sensor and Liquid Flow Sensor Solutions - Sensirion AG.

Sensors, Thermocouple, PLC, Operator Interface, Data Acquisition, RTD. Xsens : 3D Motion Tracking - Xsens. Pachube - data infrastructure for the Internet of Things.