Major Three Categories That Sensors Can Be Divided Into

Sensors are intended to detect a change in a wide range of events or quantities. Most sensors are built to produce an optical output signal or electrical signal after detecting a particular type of input. There are many different sensors to match specific functions and applications.

 

Here are three of the main types of sensors:

 

Temperature

 

One of the most common types of sensors is those made to measure temperature. Thermostats are certain to feature in the home and used to detect and control the temperature of ovens, air conditioners, refrigerators and heating systems. Industrial sensors are standard in data centers and laboratories. There is a wide range of temperature sensors, but most are passive units, such as thermistors, RTDs and thermocouples. Thermocouple sensors are the most cost-effective option. They are straightforward to use and are not dependent on an excitation signal.

 

Pressure

 

Pressure sensors feature in a wide range of manufacturing and industrial systems. The sensors are used to control and measure fluid, gas or air pressure. Most are built using quartz or piezoelectric sensors. They are built to detect many different types of pressure, such as gauge pressure (atmospheric conditions), differential pressure (pressure between two points), or absolute pressure (similar to a vacuum). The analog outputs are built to measure current, such as 4-20mA, or voltage, such as 1-5V. The output information can vary to match the specific situation, and includes PSI, kg/cm2, or bars.

 

Even though the pressure sensors are mostly used in industrial systems, they also feature in designs for a wide range of consumer products, such as automotive seats and mattresses.

 

Capacitive

 

Capacitive sensing has seen a significant increase in popularity in recent years with the development of touch screen devices, such as smartphones and tablets. However, it has previously been used to detect material properties, humidity and fluid levels. This type of sensor is made using multiple layers and connects to a circuit board. The sensor has the ability to detect the location or movement of the finger on the screen. It is only able to detect capacitance related to the skin, and isn’t intended to work with fingernails.

 

When it comes to controlling capacitive sensing, the fingers do not come into direct contact with the sensing unit. A great benefit of this is the low risk of mechanical wear after regular use. Any onscreen movement is sensed by an IC. This information is digitized and passed on to a microcontroller to let the smartphone complete the particular action.

 

Cheng Tay offers a full line of thermocouple sensors including the MICROCOIL surface sensor, radio frequency thermocouple probe, tapered thermocouple probe and TRUE SURFACE thermocouple. For more details about thermocouple sensors, please don’t hesitate to click here: Cheng Tay to get information you need.

 

 

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What is a GPS Antenna?

A GPS antenna is a device that helps boost the reception signal to a GPS unit, whether it is a standalone unit or an embedded unit. Often a GPS antenna is used in a situation where the GPS unit itself is somehow removed from a line of sight to the sky, as in a car, to help the GPS “see” the sky without having to be moved. GPS antennae may be purchased for a range of budgets, or cheaper home versions can be made with fairly common components.

 

GPS, or the Global Positioning System, is a satellite system originally developed by the United States Department of Defense. It utilizes more than two dozen satellites orbiting the Earth to allow receivers on the ground or in the sky to tell exactly where they are, by receiving heads off of multiple satellites. Using this location, devices can detect not just latitude and longitude, but also altitude, and even heading and speed. For years, GPS was reserved for military use in the United States, but following a directive by President Reagan in 1983 it became open for civilian use.

 

Civilian GPS contains certain restrictions, imposed by the US government to make sure hostile forces don’t use the technology in missiles. As a result, consumer GPS isn’t capable of operating when moving at more than 515 m/s at more than 60,000 feet (18 km). Throughout the eighties and early nineties GPS was used primarily in commercial avenues, such as on fishing boats, in airplanes, or for geographic surveying. In the late nineties it began gaining popularity for consumers for hiking or for driving, and by the new millennium cars were being equipped with built-in GPS to give driving directions, and cell phones began having included GPS for directions and location.

 

A GPS unit has a built in antenna, which is usually quite small and located inside of the unit. While this will likely function in ideal circumstances, such as when in a desert moving at slow speeds or staying still, it may not work as well as one would like in more trying circumstances. A GPS unit likes to have a clear, unobstructed view of the sky, to best receive the microwave signals that allow it to communicate with satellites. For GPS units inside of cars, this can be problematic, so often an external GPS antenna will be used, mounted to the outside of the car with a magnet, and connected to the unit itself by a cable.

 

In situations such as heavy canopy cover while hiking, the small GPS antennas built into a consumer unit also may not be able to ideally communicate with the satellites. In this case, a larger, more advanced GPS antenna helps the unit overcome the environmental challenges, to give a clear signal. Similarly, moving at high velocities can overwhelm a smaller, less sophisticated antenna, and an external device can boost the signal.

 

There are a number of different types of GPS antenna, with the patch and Quad Helix styles being the most popular. Both are roughly equal in efficacy, although many people find the quad helix to have a slight bit more sensitivity. Other types of antennae include microstrips, of which the patch is one configuration, planar rings, and spiral helices.

 

Established in 1996, Cirocomm is an outstanding manufacturer of GPS antenna in the industry. We also provide various antenna series, including dielectric filter, Glonass, WIFI, GSM, NFC antenna series and more. If you are interested in and need more details about GPS antennas, welcome to visit our website and send inquiry to Cirocomm!

 

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What is the RJ11 Connector and Where it is Used?

RJ is the connector used in telephone wiring. RJ is the short form for ‘Registered Jack’ and it is a physical connector interface used in telephone wire terminals. There are many design standards for registered jacks and these include RJ11, RJ14, and RJ45 and so on.

 

An RJ11 Jack has a total number of six connector positions, but out of the many positions only two or four are utilized. The RJ connector comes in two forms – one which is the flat satin form and the other, which is the unshielded twisted pair form. It is the most common of registered jacks and is used mostly in homes and offices across North America. Since an RJ11 jack uses two out of six positions, it can be wired with a 6P2C modular jack variety. However, you should note that such jacks are rarely used.

In addition to being used in telephone wire terminals, RJ11 connectors are also used in selective ringers, anti-tinkle circuitry and in selective ringers. The powered version of RJ11 connectors, low voltage is carried by pins 2 and pin 5. The power to these pins comes from a transformer that is plugged into the wall. Four-wire cables with 6P4C plugs are used to insert telephone terminals into RJ11 jacks.

 

Most often, there is a comparison made between RJ11 and the RJ45 jack. RJ11 is used for the purpose of connecting telephone systems, but RJ45 is used for connecting system in a network. RJ45 jack is bigger and it can accommodate more wires that RJ11.

 

The RJ11 is the most common type of registered today and it is used for the purpose of terminating phone lines. They are usually used with single line POTS (Plain Old Telephone Service) handset jacks. When using an RJ11 conductor, make sure to follow all instructions so that your connection with any device is done correctly.

 

Sun Jun Electronics Inc. founded in 1984, specializes in RJ Connector (RJ45 & RJ11) series products of developing and manufacturing, has experience more than 25 years. Based on experience, and always uphold the three objectives of “quality first, customer highest”, “research and innovation, break through the competition”, “staff’s the mainly and manage continuously”, embracing a positive and innovative attitude, continue playing the leading role of RJ Connector. If you need more details about RJ11 connectors, welcome to contact us!

 

 

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Type of Wifi Antenna

When deciding to deploy a Wireless LAN (WLAN) solution within a building or facility, there are many factors to consider. The first most obvious consideration is the radio or RF coverage required within the facility, the size and design of the facility will determine the number of wireless access points required to provide that coverage. Another consideration will be selection of the appropriate wireless antennas to provide the desired coverage.

Before we get into a description of different types of wifi antenna, how much gain they produce and what type of radiation pattern they typically provide, I must stress that when deploying a wireless LAN for the first time, it is very important to have a wireless site survey conducted to determine the siting of the access points and also highlight any problem areas where specialist wireless antennas may be required.

A Wireless Antenna will normally be designed to work efficiently over a narrow band of frequencies, the wider the range of frequencies the antenna will operate over, the more “Broadband” the antenna is said to be. Wifi antennas will operate either in the 2.4Ghz ISM band or the 5Ghz band, so the antenna must be designed to operate within those specific frequency ranges.

Let’s take a look at some of the antenna types available and how they typically perform:

 Omni-Directional Antennas

This type of Antenna, as previously stated normally produces an isotropic radiation pattern that is often referred to as a “Doughnut” shape. It is worth bearing in mind that true isotropic antennas tend to be purely theoretical and other types of omni-directional antennas are compared to that of an isotropic design.

 Vertical Omni

A vertical omi-directional antenna is usually based on a dipole design where the radiation pattern of a dipole antenna is 360 degrees in the horizontal plane, with the vertical plane varying depending on whether the dipole is vertical or not. A vertically orientated dipole antenna normally has a 75 degree radiation pattern. Dipole antennas are normally said to have a gain, on average of a little over 2Db.

 Ceiling domes

These antennas are designed to be mounted on the ceiling, above false ceilings or even on walls. Because of their less obstructed view, they tend to have a higher gain of around 3Db.

 Rubber Ducks

Rubber duck wireless antennas were first used with early walkie talkies as a cut down whip aerial designed at one quarter wavelength. Because of this they are termed electrically short antennas, usually having a wire type element covered with a rubber sheathing, making them flexible and robust. They are vertically mounted and have a 360 degree radiation pattern similar to that of a half-wave dipole. These are the antennas that you see on most mass produced wireless routers for the home market.

 Directional Antennas

Reflecting and radiating elements are added to the standard di-pole design to concentrate the signal energy in a specific direction. Directional antennas can give a gain over the standard isotropic antenna of between around 3dB as much as 20Db.

 Yagi

Yagi antennas are referred to as high gain antennas and have multiple reflector and radiating elements to give a typical gain of between 12 and 20dB. They are often used as outdoor antennas and will have a typical horizontal beamwidth of around 30 degrees and 15-25 degrees vertical beamwidth.

 Dish

The most common type of dish Wireless Antenna is the parabolic dish, which uses a curved parabola shaped dish to direct the wireless radio waves to a narrow beamwidth. These type of antennas are extremely highly directive and can also have extremely high gain, as much as 40 or 50dB. One of the design factors is that the dish will be larger than the wavelength of the design radio frequency. Most often used for point to point wireless communications links. Outdoor wireless bridges will often use a Parabolic Dish Antenna.

Patch Antenna

You will often find Patch Antennas deployed in office type environments, normally attached high up on a wall, or sometimes ceiling mounted. Typical horizontal beamwidth is around 70-80 degrees, but this can extend to around 100 degrees. Construction is normally a pair of metal plates that are actually the antenna elements, which together make up the transmission line. They are normally of half-wavelength design, with typical gain being around 2dB, similar to a traditional dipole antenna.

Of course, there are many other variations of wifi antenna which have not had a mention here, but this article was designed to give the layman a simple explanation of basic Wireless Antenna types.

Following a successful Wireless Site Survey, the majority of access points in anything but the smallest office environment will normally employ dome antennas or vertical dipoles. Problem areas may be better served by Patch or Sector wireless antennas to maximise the coverage area. To obtain more information about wifi antenna, please feel free to contact us!

 

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Deep Hole Drilling Machine: Honge Precision

Honge Precision Industries Corp.’s deep hole drilling machine utilizes the BTA deep hole drilling system for solid deep hole boring 30 to 200mm in diameter, drilling depths up to 5000mm, coolant filtration to 30 microns, the rigid honeycomb walled bed gives a stable cutting condition, FC-32 castings have been stress relived and annealed, hardened and ground ways to hardness HRC 60, the opposite ways and gibs are all Turcite-B plated with hand scraped bearing surface, automatic lubrication pump is provided as standard accessory to ensure all the bearing surface and screws are well lubricated. All box way design provides rigidity for heavy cutting. CE mark is available for special required.

 

For more deep hole drilling machines, contact now!

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Taiwan CNC Toolroom Lathes

Toolroom lathe is a type of engine lathe that is designed for high precision work. The machine is usually used in tool and dies shops where custom parts and precision fixtures are produced. Since it’s produced with special attention to smooth operation, spindle accuracy and precise alignment, the lathe is able to achieve better accuracy and precision than the standard lathe.

 

Cyclematic Machinery takes pride in manufacturing CNC toolroom lathe which features constant quality, technical competence, and competitive price. We have an efficient development team of well-experienced engineers who understand exact customer needs through complete market research and try to adopt the latest technology in designing & development of CNC toolroom lathes. Quality is the driving force behind Cyclematic’ s success.

 

We maintain international standard of quality in every stage of CNC toolroom lathe machinery production and keep upgrading the quality in order to overtake the best in the world. Of course, the strict quality inspection before shipment is also our crucial work to assure 0ur clients in getting CNC toolroom lathe products bearing consistency in quality and long-life standards. In addition to standard type of machinery, customized orders of CNC toolroom lathes are welcome!

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Specialized Welding Machines and Equipment Supplier

As a specialized welding machines and welding equipment manufacturer, we, Jiu Tai Precision Industries Corp. is located in the middle-southern part of Taiwan with many years of technical improvement and expansion. Welding machines and wire meshes products offered by JIU TAI have been exported actively worldwide every year. We specialize in mesh making and fence weaving machineries (e.g. wire mesh welding machine & its auxiliary machines for full plant and production line supply such as wire drawing & ribbing machine, automatic mesh turning & stacking machines, welded mesh recoiler, wire straightening & cutting machine, mesh shearing machine/guillotine, mesh bending machine, etc.), as well as the automatic chain link fencing machine, high speed barbed wire machine, hexagonal wire netting machine, hexagonal gabion mesh weaving machine, and mobile security barrier with automatic barrier fence deployment and retrieval for riot and temporary traffic control and so on. We also produce various wire mesh (e.g. welded mesh, chain link fence mesh: galvanized and PVC coated), and plywood conveyance belt, etc. We would like to recommend the most suitable machine/equipment for you, and assist you to the best of our ability for your specific requirement. Performance, quality, innovation, service, and tech support are what you can expect and will see in our products, company, staff, and service. Contact us for any of your welding machines and equipment inquiry.

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All about Piston Pumps and Their Beneficial Operations

Piston pumps are there almost everywhere in our lives. But, it’s just that we are not aware of their existence or their usefulness. The axial one are used almost everywhere but they are most useful in the aerospace industry.

Well, before talking about this and its use in the various industry sectors, let us know a few basic things about them. These are nothing but positive displacement pumps that have a number of cylinders arranged in a circular pattern within a cylinder block. This block known as a rotor or a barrel, this is a key component in their assembly. The size and surface texture of this cylinder bores is critical to proper performance and life of the assembly.

This comes in many varieties that include axial radial inline form, radial-piston form, and also in plunger. They also differ based on the type of component they are used like bronze, brass, steel, stainless steel, iron, nickel alloy, or other material.

These pumps are used in lower pressure applications, unlike plunger pumps which are high pressure pumps. Indeed, this provides an excellent solution for many hydraulic oil pumping applications. However, the pumps used in these operations have iron cylinder and piston with a steel piston rod.

Whatever model of piston pumps or pressure washer pumps you intend to buy, always go for manufacturers whose products are acknowledged for high functionality, low power consumption and excellent durability. They should also come with rounded construction that has no drum-type surfaces to amplify noise.

Also, as in a centrifugal pump where restriction or increased head creates reduced flow, a piston pump has a very flat flow performance curve. This may result in blockages, which is very hazardous. Hence, use only piston pumps that have safety devices such as unloaded valves.

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Stay Cool with Desk Fans

Today, most of the offices are centrally air conditioned. Air conditioning is designed, keeping every corner of the office in the mind. However, due to any reason, if the air conditioning system is not working, or the cooling doesn’t reach at corner cubicles, it becomes extremely unbearable for the person to sit there. Desk fans can possibly be the solution. Lucky for you – they’re back again!

There are different types of desk fans available in the market. One of them is, USB Desk Fan. These USB desk fans are PC compatible. It can simply be plugged to the USB port of your computer and charged. It features two speeds – from “soft” and “strong”! You can split the air with swinging mode or keep it pointed straight towards you. Its plastic blades and metal cover gives it a nice retro look.

If you have had frosty night in your office, you can use your USB desk fan to clear the air and shield yourself from any kind of unpleasant odor in the office or your surroundings. It can also run on 4 x AA batteries and doesn’t make any noise.

There are other small sized personal desk fans also available. It comes with 3 position slide switch. Its flexible sleek wind burrow design gives you the fast and focused cooling. It has a three speed motor (high, medium and low). There is a push button control placed in the front of fan base that makes it easy to turn off and on or adjust speeds. You can choose the right breeze for you as per the temperature of your surroundings.

If the different speeds don’t offer you enough options, you can try using the variable tilt head that pivots a full 90 degrees for use as an air circulator rather than a direct fan. The portable desk fan also has the alternative to hang it on the wall. These fans are available in different sizes ranging from 6″ blade span to 12″ blade span diameter. Also you can choose among the oscillating or non-oscillating desk fans.

There is wide variety of desk fans, oscillating fans, power fans, with or without remote on Office-supplies.us.com at best possible prices. They offer great discounts at bulk purchases. They offer you online ordering operational benefits through the most secure transaction system.

Pick your desk fan according to your needs!!!

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What Is It About A Pallet Truck?

A pallet truck, also know as a pallet jack or pump jack, is a manually powered fork truck designed to lift and move heavy materials. The front wheels are placed on the inside near the forks at the front. At the back is a hydraulic jack which is used to lift the pallet off the floor.

How do use a pallet truck? 

Being manually powered the person operating the truck pushes the forks into the pallet, and then uses the jack part of the truck to ‘jack’ up the pallet off the floor to a certain height required. Once the pallet has been lifted the operator can then move the truck where ever they wish, the pallet is only listed off the ground so it can be moved, and so a foot or so is usually normally.

Powered pallet trucks

Pallet trucks are also available powered. It is the same principle as a manual pallet truck except instead of the operator having to jack up the pallets the machine lifts it for you via controls. This is easier to use as the machine does most of the work for you and they can lift heavier pallets if required.

Who uses pallet trucks?

Generally speaking pallet trucks are used by people who are suppliers and work in warehouses. This can be in a variety of fields such as food and drink, clothing, computers, machinery and so on. Any industry that requires moving about large and heavy pallets of products will use a pallet truck.

How much do pallet trucks cost?

Many companies will differ slightly in the cost of their pallet trucks, and depending on the type of pallet truck will alter the cost as well. You will be able to pick up a regular pallet truck for around £130. Searching online or visiting different shops you’ll be able to gain more of an idea of the prices available.

 

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