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Indicators, sensors, detectors. Schemes, articles, descriptions

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Indicators, detectors

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Geothermal Water Extraction Technique

Section Alternative energy sources. Geothermal energy is obtained from heat sources with high temperatures, it has some features. One of them is that the coolant temperature is significantly lower than the fuel combustion temperature. Despite the fact that the total reserves of geothermal energy are large, its thermodynamic quality is low. These sources have much in common with industrial heat emissions and ocean thermal energy. Below is a brief overview of the strategy for using geothermal energy. ... >>

Classification of fluorescent lamps of leading manufacturers

Section Fluorescent lamps. To date, the highest quality products and a wide range on our market are represented not by domestic manufacturers, but by world lighting brands: the German company OSRAM, the Dutch PHILIPS, the American GE Lighting (General Electric). They offer the widest selection of high quality LL for every taste and color. Manufacturers divide their fluorescent lamps into two broad categories: category 1 - LL fluorescent lamps (FL - Fluorescent Lamps), category 2 - compact fluorescent lamps CFL (CFL - Compact Fluorescent Lamps) ... >>

Turn on powerful seven-element LED indicators

Section Digital technology. LED indicators of the ALS321, ALS324, ALS333 series and many others have good lighting characteristics, but in the nominal mode they consume quite a lot of current - about 20 mA for each element. With dynamic indication, the amplitude value of the current is several times greater. The industry produces decoders K514ID1, K514ID2, KR514ID1, KR514ID2 as BCD-to-seven-element converters. They are not suitable for joint work with the indicated indicators with a common cathode, since the maximum allowable current of the output key transistors of the decoders K514ID1 and KR514ID1 does not exceed 4 ... 7 mA, and K514ID2 and KR514ID2 are intended only for working with indicators that have a common anode ... >>

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Articles on indicators, sensors, detectors

Articles on indicators, sensors, detectors; diagrams of indicators, sensors, detectors; descriptions of indicators, sensors, detectors: 104 articles



See also: Articles on metal detectors

Articles on metal detectors; schemes of metal detectors; descriptions of metal detectors: 124 articles



All articles on consumer electronics



Latest news of science and technology, new electronics:

The speech of sperm whales is similar to that of humans 18.05.2024

In the world of the ocean, where the mysterious and unknown coexists with the studied, sperm whales, with their huge brains, are of particular interest to science. Researchers, working with a huge array of audio recordings collected during the Dominica Sperm Whale Project (DSWP) - more than 8000 recordings, seek to unravel the secrets of their communication and understand the structure and complexity of the language of these mysterious creatures. By studying in detail the recordings of 60 sperm whales in the eastern Caribbean, scientists have revealed surprising features of their communication, revealing the complexity of their language. "Our observations indicate that these whales have a highly developed combinatorial communication system, including rubato and ornaments, which indicates their ability to quickly adapt and vary during communication. Despite significant differences in evolution, sperm whales have elements in their communication that are characteristic of human communication," says Shane Gero, a biologist at Carleton University and director of the CETI project. Issl ... >>

Electron spin for quantum information transfer 18.05.2024

The transfer of quantum information remains one of the key tasks of modern science. Recent advances in the use of electron spin to expand the capabilities of information transfer in quantum systems have become very important. Researchers at Lawrence Berkeley National Laboratory are pushing the frontiers of quantum information science by experimenting with the possibilities of electron spin. Electron spin, a natural quantum bit, is a potentially powerful means for storing and transmitting information in quantum systems. Magnon wave packets, collective excitations of electron spin, have revealed their potential to transmit quantum information over significant distances. The work of Berkeley Lab researchers has revolutionized the way such excitations propagate in antiferromagnets, opening up new prospects for quantum technologies. Using pairs of laser pulses, scientists disrupted antiferromagnetic order in one place and simultaneously studied it in another, creating ... >>

Sound-absorbing silk 17.05.2024

In a world where noise is becoming increasingly intrusive, the emergence of innovative materials that can reduce its impact is of great interest. MIT researchers have unveiled a new sound-absorbing silk fabric that promises to revolutionize quiet spaces. The Massachusetts Institute of Technology (MIT) has made significant breakthroughs in the field of sound absorption. Researchers have developed a special silk fabric that can effectively absorb sound and create cozy, quiet environments. The fabric, thinner than a human hair, contains a unique vibrating fiber that is activated when voltage is applied to it. This feature allows the fabric to be used to suppress sound waves in two different ways. The first method uses fabric vibrations to generate sound waves that cover and cancel out unwanted noise, similar to noise-canceling headphones. This p ... >>

Random news from the Archive

A concussion-surviving brain ages faster 11.08.2012

Researchers at Michigan State University have reported some disturbing news: Concussions and even milder effects on the brain can speed up the brain's natural aging process. Impacts and other excessive loads on the substance of the brain cause accelerated destruction of signaling pathways. As a result, the old age of the most important organ of the human body in an injured person comes earlier than in a person who has never received such injuries.

By studying the impact of concussions and other injuries on brain function, American scientists have found subtle changes in gait, balance, and electrical brain activity in injured students. Particularly affected attention and control of nerve impulses. All participants in the study looked and acted like perfectly healthy people, but several years after the traumatic brain injury, they experienced measurable negative consequences. During the experiments, the researchers asked the subjects to solve certain problems on the computer and at the same time scanned their brain activity. As a result, it was found that uninjured people have a larger area of ​​electrical activity than those who have experienced trauma.

The signaling pathways in our brain are like highways. On new asphalt, cars (such a comparison can be made for nerve impulses) move easily and quickly, but in the process of aging, the asphalt deteriorates and, as a result, becomes unusable. As a result, the movement slows down, the brain starts to work worse. At the same time, the more injuries a person has suffered, the faster the "asphalt" deteriorates. The latter should be especially alarming for people actively involved in traumatic sports, especially if they need a tenacious mind, attentiveness and intelligence for their work.

Scientists emphasize that there is no need to panic. A concussion does not mean the imminent appearance of Alzheimer's disease syndromes or dementia (senile dementia). So far, scientists have only clarified the data on the well-known fact that a blow to the head can lead to negative changes in the functioning of the brain, but this problem is still not well understood. Other factors, such as an unhealthy lifestyle, can affect the brain even more negatively.

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