Electronics 2024, May
Optical sensors reflecting from a retroreflector receive and emit light that comes from a special reflector, and when the beam is interrupted by an object, the corresponding signal appears at the output. The scope of such a device depends on the state of the environment that surrounds the sensor and the object (fog, smoke, dust, etc.). In this device, the emitter and receiver are also placed in the same housing
A mixing console is an electronic device for working with sound signals: summing, processing, controlling, correcting and mixing several sound sources into one. More modern models are equipped with equalizers, filters and effects processors. The console is the main component of concert sound, removing interference and adjusting incoming signals
Bluetooth receivers are widely used to connect acoustic equipment. Modern models are able to work at a great distance and cope with various signal formats
The battery is one of the most important elements in any device. The scope of its application is quite wide, ranging from quartz clocks to powerful reactive power compensators at industrial substations. Much depends on the ability to accumulate electrical energy, in particular, the operating time of the device until the battery is charged. This time directly depends on such a parameter as battery capacity
Navigators are, in fact, an interactive map of the area. With their help, orientation and finding the path become much easier. And the most modern copies already look more like full-fledged tablets, because in addition to the main function, they may also contain several additional ones, the most popular of which are games for the navigator. There are a great many of them
UV filter is an ultraviolet filter. Its main purpose is to protect optical lenses from damage, dust and dirt (all this quickly destroys the lens). Also, such optical elements delay ultraviolet radiation when shooting distant objects. After all, a digital matrix and film, unlike the human eye, are more sensitive to this type of radiation. A UV filter is very useful when shooting in mountainous areas, it helps to avoid blue cast in photos
We did not have time to notice how satellite tracking systems, geolocation technologies have already relentlessly entered our lives and taken root in it. Almost all modern gadgets are crammed with GPS navigators. They are followed by other popular devices such as trackers, tracking beacons, phone monitoring systems and so on
Today, humanity even uses outer space to ensure security. For this, satellite search engines were created. It is believed that the beginning of such navigation was laid on October 4, 1957. It was then that the first artificial Earth satellite was launched for the first time
Radio tape recorders of past years of production are often used by drivers who do not want to overpay for new features that they will not use anyway, but at the same time will not give up the high-quality sound of the same CDs or familiar radio stations. One of these radios is the Pioneer DEH-P6000UB. Let's look at its main features, as well as analyze the reviews that have accumulated over the past years in order to understand its positive and negative sides
Some elements of sound equipment used in modern conditions are so well known that they do not require additional advertising. Such is the case with the Shure SM58 microphones, which have already established themselves as a reliable, legendary device for sound transmission
Most TVs today are bought with minimum requirements - a high-quality picture and a low price. The Sony KDL-32WD603 model can be called suitable for these requests, reviews of which will help you understand its advantages and disadvantages
For a small amount, everyone can freely turn their old TV into a full-fledged entertainment center with access to the Internet, applications and games. The choice of such devices on the market is quite large, and prices vary. The article will focus on what is the Android TV Box Beelink R89 and the like
In our time, with the development of high technology and the development of more and more advanced IT gadgets, it is difficult to do without smartphones and electronic devices. They have penetrated the life of an ordinary person so much that in every home you can easily find portable electronics in use, in particular digital cameras and camcorders, players, smartphones, etc. The only thing that makes it difficult to use them all the time is what you need from time to time. connect to charger
The peak of brain activity and human activity in general falls on the morning time of the day. There are people who wake up without problems, but sometimes each of us is faced with an irresistible desire to sleep longer. To do everything, you need to wake up on time. Alarm clocks help. One of them, namely, a running alarm clock, will be discussed in this article
When buying a digital camera, you need to pay attention to the size of the camera's matrix. This option determines the quality of the photo
The Nikon D300S was born as a result of the planned upgrade of the D300. Reviews of professionals indicate that such a decision of the manufacturer should be called, rather, a marketing ploy than a necessity
The official presentation of the Nikon D4S camera, which is reviewed in this article, took place in early 2014. The novelty, in fact, is an upgraded version of the D4 model, which conquered the world of digital photography a few years earlier, and opens the door to the real world of advanced technologies for the user
Outdoor street lighting plays an important role in people's lives. Floodlights and lamps mounted on masts, various poles, overpasses improve visibility at night. Light is very necessary not only on the night streets of a big city, but also in small courtyards of sleeping areas, and in private households
The Japanese company Nikon has a whole line of simple and good cameras that take good pictures and are designed for people who are not very demanding of such technology, called Life. One of its brightest representatives was the Nikon Coolpix L810 model
Many people are familiar with the situation when some device plays sound, but does not do it as loudly as we would like. What to do? You can buy other sound-reproducing equipment, or you can purchase an audio frequency power amplifier (hereinafter UMZCH). Moreover, the amplifier can be assembled by hand
A bass amplifier is an electronic device designed to amplify low-frequency oscillations to the level required by the consumer. They can be performed on various electronic elements such as different types of transistors, tubes or operational amplifiers. All amplifiers have a number of parameters that characterize the efficiency of their work
Hunters, fishermen and other lovers of outdoor activities and tourism in the bosom of nature at night, certainly thought about purchasing a night vision device
Many audio devices (eg radios, stereos, CD/MP3 players, TVs) have a connector for external signals - AUX input. In this article we will look at the practical use of this socket
Today, almost every day you can see or hear combinations of words such as 4K resolution. A lot of people agree, they say, yes, it's cool! Some are perplexed: why is it needed? And at the same time, a solid part of the population does not even know what it is at all
One of the fundamentally most important aspects of liquid crystal displays, determining their performance and what tasks they will best perform, is the type of panel. While there are many varieties, all modern screens generally fall into one of three categories: TN, VA, and IPS. The user can weigh the advantages and disadvantages of monitors by comparing them, and understanding the general characteristics of LCDs is a great starting point
Today one of the sources of information is television. Of course, it is not as popular as the Internet, but many people use it. Every home has a TV, not always one. With it, everyone can watch news, exciting movies or exciting TV shows. To view them, you need to achieve a good signal. An active television antenna is suitable for this
Electronic amplifiers are special devices that increase the power, voltage or current of incoming signals. Their exact purpose and principles of operation depend on the specific type of device, of which there are quite a lot. The article gives characteristics of electronic amplifiers, their description and principles of operation. Considered classification according to different criteria
The article is devoted to television passive antennas. The main types of such devices, characteristics, features and user reviews are considered
Modern active antennas have a high frequency parameter. They also have a high quality reflector. However, it is important to take into account the characteristics of products of specific brands
An antenna is an electromagnetic emitter that creates an electromagnetic field that goes from the transmitting antenna to the receiver antenna and then converts the electromagnetic wave into electrical signals
To receive a television signal, log-periodic antennas are often used. To understand these devices, you need to familiarize yourself with the basic structural elements
There are several relatively quick ways to transfer all existing information from the Android platform to other devices. Let's analyze them in more detail
Prefix "Rostelecom" for IPTV: connecting and configuring equipment. Features and additional functions of the console. Troubleshooting equipment
Digital television is not so long ago, but has already firmly entered our lives. However, not all of us managed to get TVs with built-in digital receivers. There are two ways to solve this problem - buy a new and modern TV or install a small DVB-T2 receiver in your home
On-board computers Multitroniks: features, varieties. BC for cars VAZ 2110, 2114, 2115. Installation and troubleshooting of on-board computers
DVB-T2 tuner is a separate electronic device whose main task is to receive and decode a digital TV signal. After conversion, the latter is displayed on the TV screen. It is the review of this group of solutions that this material is devoted to, according to its results, the best device of this class will be selected
The article is devoted to 12V LED lamps for the home. Recommendations are given on the choice of such lamps, taking into account different parameters
Flagship TV ranges from leading electronics developers surprise fans with new features with each new series. But along with individual local innovations, revolutionary changes in the segment are imperceptibly approaching
When every consumer looks at a washing machine, they ask themselves the question of a reliable choice of equipment. Because now there are a lot of different manufacturers. If a person does not understand this, then sometimes it is difficult to choose a good washing machine. To meet the requirements of the buyer. After all, I want the service life of the washing machine to be long and it does not break
When dealing with LED lighting, especially when these LEDs are part of a battery powered project, it is very important to calculate the power consumption of the circuit. This is easy to do with a multimeter that can measure current, resistance, and voltage. Even if there is no necessary device, you can estimate the voltage of the LEDs by other methods that you need to know