The main purpose of the pressure sensors is to measure and control pressure in air, gaseous and liquid media. The pressure sensor is a device whose physical parameters are changed in variability depending on the medium, whether steam, water or gas. Directly to the pressure sensor by converting these parameters into an electromagnetic pulse and digital code, which further routed to the output device. For more information see this site: LBS Market. Most pressure sensors have a similar structure. It includes a primary pressure transducer, which in turn consists of a receiver pressure and high-sensitivity element, the secondary signal processing, high housing and output device through which the converted signal is sent on a chain. Typically, the sensors differ from each other to transform the signal. Currently, there is 6 methods: strain gauge, piezoresistive, capacitive, resonant, inductive and ionization.
As implemented by our company piezoresistive pressure sensors used method signal conversion. Piezoresistive technology is based on highly integrated elements of monocrystalline silicon. The choice of silicon is reasonable because it has a fairly high temperature and temporal stability. To measure the pressure in the non-aggressive environments, using the principle Low cost, which is to use sensors as the protection of silicone gel, and without it. If you want to measure pressure in harsh environments, use silicone fluid. In this case, security and accuracy pressure sensor switch is sealed in a metal case, which is divided into two part of the diaphragm made of stainless steel.
Since the signals from most types of sensors are slowly varying, their range is in the very low frequencies. In order to properly convert the signal to digital code, we need to suppress high-frequency part of the spectrum, which consists of the interference and noise information. In this case, the actual use of analog-digital converters slowly varying signals. Such a method often used in the industry. Our site offers the widest range of pressure sensors of various modifications. Each sensor has all the necessary documents certifying that confirm the high quality of the goods. The pressure sensor, the price of which is available for most industrial enterprises are able to provide high accuracy and reliability of measuring the pressure in the range of 25 Pa to 400 Bar. For the correctness and accuracy of measurements of pressure sensors are enclosed in a housing of high strength, which protects the internal electronic control gear from mechanical effects. Widespread use of pressure sensors found in cooling systems, hydraulic systems, pumping stations and industrial plants, where it is necessary to monitor and control the level of pressure gaseous or liquid medium. They are also used for monitoring the pressure in the containers, piping, vehicles, tanks and oil refineries. In case of failure you can always seek a qualified service center to help producers, where you will have all possible assistance and return the performance of the pressure sensor of any type.
Ghost 22 584 states that the hoist – lifting device is a pendant with a manual or motorized. Today, every service station, warehouse and production plant are used in their daily work hand hoist. Depending on preferences, working conditions and the type used by different models: gear chain hoists, lever hoists, wire rope hoists and electric hoists, etc. are allocated (elektrotali) and manual hoists. Electric hoists Electric hoists can be divided into two types – chain and rope. The choice of lifting mechanism depends on the weight of cargo that must move and intensity of use. Tali electric cable today perhaps the most popular in the world of lifting equipment used in companies with high rate of work. In Russia, the technical requirements for cable-talyam stated in GOST 22 584.
Load capacity wire rope hoists are sometimes higher than 100 tons. Payload another variety of electric hoist chain, is no more than 5 tons. The rope used in the first model, a more reliable, easy and cheap traction element than the chain, in which there is always a weak link. That quality makes the traction element model hoists so different in design. Average lifting speed chain hoists within 2 …
5 m / min, and cable – 5 … 12 m / min. Electric hoists are undemanding in operation and are suitable for work at temperatures from -63 to +40 degrees Celsius. Chain hoist is used as auxiliary structures for cantilever-cranes. Elektrotali rope used too and the overhead crane for lifting and transport medium and heavy loads, because the duty on wire rope hoists chain excel. The basis of the assembly in an electric hoist – a block mechanism sotoyaschy of motor, reducer, drum or sprockets, brakes, hooks and lifting element. Drum are only in electric cable talyah, and the star – only to chain elektrotelferah. Tal is equipped with a portable control unit, which enables comfortable control mechanism. Available storage equipment of two types – mobile and stationary. Portable models are moved in the vertical and the horizontal plane. Hand Blocks Tal manual for those companies and industries that have no need for lifting at high altitude and in the fast pace of work. They can be hung on a stationary or mobile cat when there is a need horizontal movement of the loads. Tali ruchnyeshesterennye and lever can primenyatsyadlya lifting and outdoors, and indoors, including in a limited area (trenches, wells). Capacity hoist hand is usually up to 10 tons, in special cases – up to 50 tons (such arrangements are made to order). In the manual gear talyah as heavy-lift element applies round-chain 3 m long or more. In the lifting of the load lever talyah performed by acting on a lever mounted on the hoist. Carrying capacity offered hoists up to 3 tons, lifting height of 1.5 m.
Quite often, the happy future owners of the houses asking the same question: "Are you from the woods? Not because of the Chernobyl accident under? "Indeed, if we follow the logic, the best wood – wood is the northern, in exactly Chernihiv, Zhitamirskoy, Kyiv region, the most affected areas of our country from the Chernobyl accident. However, despite this, the wood from these areas trains exported to EU countries, where Believe me, the issue of environmental friendliness and radiology paid very much attention. This forest meets the requirements of the EU countries, so it is clean and the houses built out of it, suitable for living. Each Normal Organization will provide the customer a phytosanitary certificate and radiology at the forest from which made its timber (another way to distinguish between "Sharashkina office" of the actual construction firm). Data documents can be formally obtained from the forestry enterprises engaged in logging and cooperate with legitimate organizations.
Without them, none of the log does not cross the border of our state. At worst, I recommend simply purchase household dosimeter and walk with him near the plant ready to export their logs to your building site. I can assure you right away – no increased background you will not find a trace, shattering another ridiculous The myth that an environmentally friendly wood can be only in the Carpathians, Karelia and Siberia. The most common types of wood used for construction of wooden houses in Ukraine – it is pine and Carpathian Smereka. Rarely used spruce, Russian larch and cedar. Very rarely – oak. Take the two most common species (pine and Smereka) and try to compare them to physical and mechanical properties: 1.
Indicators of average moisture content of wood freshly cut pine – 88%, Smereka – 91% 2. Density at 12% moisture: pine – 500 kg / cubic meter, Smereka – 445 kg / cubic meter, 3. Density in a completely dry pine – 470 kg / cubic meter, Smereka – 420 kg / cubic meter, 4. The coefficient of volumetric shrinkage: Pine – 0.44% Smereka – 0.43%. 5. The coefficient of radial shrinkage: Pine – 0.17% Smereka – 0.16%. 6. The coefficient of tangential shrinkage: Pine – 0.28% Smereka – 0.28%. 7. Coefficient of volumetric swelling pine – 0.51% Smereka – 0.50%. 8. The coefficient of radial swelling: Pine – 0.18% Smereka – 0.17%. 9. Coefficient of tangential swelling of pine – 0.31% Smereka – 0.31%. As can be seen from the data, the coefficients of the properties of shrinkage and swelling are almost identical. The only thing what wins pine – that wood density – 11% higher than the density-density Smereka. But the house of Smereka slightly warmer home from pine, according to the organization, working exclusively with this material (due to the looseness of wood). The greatest density of all types of wood used in wooden house construction, is English oak – 690 kg / m, beech – 670 kg / m and larch – 660 kg / cubic meters, the smallest – Siberian fir – 375 kg / m and cedar – 435 kg / cubic meter.