| A structure or space in the shadow of an efficient photoelectric generator surface already possesses this characteristic. |
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| Above the photoelectric threshold, photoelectrons are emitted in proportion to the intensity of incident light. |
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| The photoelectric effect has many practical applications which include the photocell, photoconductive devices and solar cells. |
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| The photoelectric effect is the release of electrons from certain metals or semiconductors by the action of light. |
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| It soon became clear in the next few years that the particles emitted in the photoelectric effect were indeed electrons. |
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| The thermopile used a stack of tightly packed metal plates to amplify the photoelectric signal. |
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| On electrically anisotropic samples containing oriented BR molecules, photoelectric response signals could be measured. |
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| All alkali metals exhibit the photoelectric effect and are used in photoelectric cells. |
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| In addition to being used as a semiconductor in photoelectric cells and copy machines, selenium is also used in ceramics, glass, and medicine. |
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| The photoelectric effect occurs when photons of light at a certain frequency excite and cause the ejection of electrons from a metal. |
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| A solar cell uses the photoelectric effect to create an energy imbalance within the cell which can be used to drive some load. |
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| Too much of the potential triggering energy of the degraded gammas is dissipated in Compton and photoelectric interactions. |
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| The ESYLUX PROTECTOR S is a photoelectric smoke alarm for early and reliable fire detection. |
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| Within the CX-400 series, 116 models of ultracompact photoelectric sensors are available. |
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| The reflectors of the encoding strips must be located exactly at the height of the optical axis of the query photoelectric sensors. |
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| Thanks to the new housing concept, the photoelectric sensor can be adjusted easily and quickly via a teach-in button. |
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| Be on the safe side with the fail-safe photoelectric and inductive sensors as well as safety relays. |
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| The other device was a type of proximity fuze using a photoelectric cell and thermionic amplifier. |
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| The range of retro-reflective photoelectric sensors depends on the type and size of the reflector. |
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| It has been used in commercial photoelectric cells for measuring ultraviolet light of wavelengths ranging from 2000 to 3750 angstroms. |
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| To this end, photoelectric cells placed at intermediate measuring points are activated manually just before the competitors race past. |
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| Working with a 24V system, please use only solar panels of 72 photoelectric cells. |
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| In 1980 thanks to photoelectric cells on its roof, the Fervelectric became a solar-powered car. |
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| Protection by limitation of forces or detection without contact, example: photoelectric cells. |
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| Due to their punctiform working principle, conventional photoelectric sensors are not always suitable for certain inspection applications. |
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| The photoelectric effect sees electrons emitted from the surface of a metal when light is shined upon it and the light's energy is absorbed. |
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| Describe how the quantum energy concept explains black-body radiation and the photoelectric effect. |
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| In 1905, Einstein explained the photoelectric effect with the help of the quantum theory. |
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| Einstein received the prize in 1921 but not for the relativity theory, rather for his 1905 work on the photoelectric effect. |
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| A Solar modul consists of several solar cells that use the photoelectric effect to convert light into electrical power. |
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| If a photoelectric cell instead of the eye is used to compare intensities, the instrument is called a photoelectric colorimeter. |
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| These films exhibit birefringence, which can prevent stable detection in conventional photoelectric sensors. |
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| Also available as low-energy lamp with integrated photoelectric lighting controller. |
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| Separate-amplifier photoelectric sensors with a variety of sensor heads from a thin compact type to a chemical-resistant type. |
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| Together with the photoelectric scanning method, this high edge definition is a precondition for the high quality of the output signals. |
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| As one of the first manufacturers of inductive and photoelectric sensors, Baumer with its wide range of sensors is a technological market leader. |
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| Detection of black-colored targets has been difficult with conventional reflective photoelectric sensors. |
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| The ESYLUX PROTECTOR K is a reliable photoelectric smoke detector designed for use in residential buildings. |
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| The new solar battery has a thin layer of photoelectric cells which, upon exposure to light, will start charging the normal lithium battery to which it is attached. |
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| It is basically an analog synthesizer of my own design which is activated via photoelectric cells, played similar to the way a DJ works a turntable. |
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| At the 1948 Olympic Winter Games in St. Moritz, OMEGA used photoelectric cells for the first time and set another precedent by sending its own experts as well as the timing devices themselves. |
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| A solar photovoltaic power plant converts sunlight into direct current electricity using the photoelectric effect. |
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| The light and rotation are activated automatically by a photoelectric sensor. |
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| A Golay detector employs the reflection of light from a thermally distortable reflecting film onto a photoelectric cell, while a bolometer exhibits a change in electrical resistance with a change in temperature. |
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| One basic device is the photoelectric cell, or photodiode. |
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| Rubidium's photoemissive properties have led to its use in night-vision devices, photoelectric cells, and photomultiplier tubes. |
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| By the effect of gamma-ray photoelectric or the behavior of tangently rub of tungsten needles, the debris powered is charged. |
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| If your door operates in automatic mode, you should also add photoelectric cells which will halt the movement of the door as soon as presence is detected in the range of their infrared rays. |
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| Baumer's innovative photoelectric sensors have been successfully employed for years in numerous industrial fields, where they can securely solve even the trickiest detection and measurement problems. |
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| They discovered how to use the photoelectric effect, in which a photon of light knocks an electron out of its orbital around an atom, to make devices that, if laid out in an array, could record an image. |
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| The photoelectric effect was not discovered until 1839, when Alexandre Becquerel, a French physicist, observed that light could generate an electric current between two metal electrodes immersed in a conductive liquid. |
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| But there is growing interest in the idea of using photoelectric cells to run gadgets as well as power grids and doing so even when those gadgets are inside buildings. |
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| Sophisticated variants of this basic testing procedure have been developed using photoelectric cells or interferometers to obtain greater measuring accuracy. |
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| The microprocessor-controlled photoelectric lighting switch is the ideal choice when it comes to illuminating shop windows, advertising systems or surfaces all night long. |
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| Especially for photoelectric sensors the quality of the fixing and of the accessories used is of great importance for the reliability of the complete sensor system. |
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| Starting in the early 1900's, biologists began experimenting with cameras triggered by trip wires and, later, photoelectric cells to photograph tigers, bats, birds and other wildlife. |
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| Calibration of the length of intervals between the lines is done by counting the number of reference optical wavelengths as the scale is traversed under a photoelectric line-detecting microscope. |
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| The photoelectric detectors react rapidly and more efficiently to large smoke particles emitted by slow burning, smoldering and low-temperature fires. |
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| The spectrometer is equipped with conventional photoelectric cells. |
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| This element is also represented by the remarkable cloud formations above the Institut du Monde Arabe which recall the photoelectric cells of its façade. |
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| Highest quality, high-transmission tempered glass provides enhanced stiffness and impact Working with a 12V system, please use only solar panels of 36 photoelectric cells. |
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| The glossmeter used photoelectric measurement of specularly reflected light from the surface. |
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| Quattro Inc. will replace defective parts free of charge, except for ballast and photoelectric cells, which are covered by a separate warranty provided by their manufacturer. |
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| This standard addresses issues such as placement of alarms in relation to vents, air conditioners, the use of photoelectric vs ionization, height from ceilings etc. |
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| A surface treatment and a control driven by a comuputer using laser beam and photoelectric cells permit a real precision and regularity of the gauge. |
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| Not even one second, because photoelectric cells are installed in the machine's loading opening which start or stop the machine automatically when the material to be compacted is present or absent. |
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| Moreover, by incorporating photoelectric cells or motion detectors, the lighting control systems can also adapt lighting to the exterior lighting level or the rate of occupation of the room. |
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| Subjects were also monitored with electrocardiographs, electroencephalographs and by a photoelectric device attached to the earlobe that measured blood flow to the head. |
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| The process is an internal photoelectric effect. |
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| On the other side of the plate, photoelectric cells collect this beam at the moment it passes through the matrices and react by emitting electronic signals directed to the output device. |
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| Explain qualitatively and quantitatively the photoelectric effect. |
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| This device automates post-manufacturing testing of photoelectric cells. |
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| The conversion process is based on the photoelectric effect already discovered in 1839 by Alexander Bequerel: the release of positive and negative charge carriers in a fixed body caused by light irradiation. |
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| When interacting with matter, behaviour such as the photoelectric effect clearly characterizes electromagnetic radiation as an energetic zero-mass particle. |
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| Nature is able to take on one or several of these basic states as it chooses and, as the photoelectric effect shows, it can mutate from one form into another. |
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| One of the most famous laureates of the Nobel Prize in Physics was of course Albert Einstein in 1921 for his discovery of the law of the photoelectric effect. |
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