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Based on the temperature sensing quartz crystal resonators RKT206 the digital medical thermometer, electronic digital and analog controllers and industrial thermometers (-50…+125°C; accuracy class up to 0.05%) are developed and made.

 

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Classification of temperature sensors and pressure (PTK; PDK; PDTK)

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In cipher converter coded the following parameters:

Last Updated on Friday, 22 October 2010 09:24

About the sensors measure the pressure of liquids

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Ltd. "SKTB ELPA" designed and engineered sensors for measuring pressure of various fluids: fresh and salt water, oil and its derivatives products, food products (milk, paste).

Last Updated on Monday, 19 March 2012 09:58

On the characteristics of the output signal converters

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To visualize the characteristics of the output signal converters PTC; MPC and PDTK:

Last Updated on Friday, 22 October 2010 09:26

Compensation algorithms Temperature effect in quartz pressure and temperature transmitters.

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Manometric feature of quartz resonators is the reproducibility of temperature-frequency characteristic (PMx), which must be compensated with high accuracy over a wide temperature range and in the range of operating pressures. You must take into account the change in the temperature sensitivity of the cavity of the pressure acting on it. The following describes two methods of temperature compensation.

Last Updated on Friday, 22 October 2010 09:28

Test for thermal shock PDTK-80-MS23

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 In Fig. 2 is a graph of the test results quartz pressure transducer with mathematical temperature compensated readings of temperature-sensitive resonator, which is located in the transmitter housing. The test was conducted in the Company "SKTB ELPA" December 12, 2007.

Last Updated on Friday, 22 October 2010 09:29

Organization and conduct a natural experiment to study the wave dynamics in the eastern offshore. Sakhalin

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 Public safety and preservation of complex industrial infrastructure along the coast and the ocean shelf, as well as reducing the risk of adverse impacts on the marine environment in emergency situations on offshore oil platforms, closely related to the study of nonlinear dynamics of waves in the coastal zone. The experimental data are thus of great value in relation to the increasing demands for precision estimates of mean and extreme values of various parameters of hydro and the need for verification and refinement of mathematical models of wave processes. A collaboration of research teams of "Applied Mathematics" Nizhny Novgorod State Technical University (NSTU) and the Laboratory of wave dynamics and coastal currents of the Institute of Marine Geology and Geophysics (IMGG), Far East Branch, subject to many years of experience studying the nonlinear wave dynamics and conduct field experiments in the Pacific [1 - 5, 7 - 12, 14 - 17], it was decided to conduct a joint experiment, the purpose of which relate to the study of wave dynamics of the shelf area in general and, in particular, marine hazards on the shelf, the analysis of low-frequency (with periods ranging from minutes to hours ) sea-level fluctuations, registration processes due to topographical capture wave energy. In addition, the full-scale data obtained will be used for development and testing of a deterministic forecast model of nonlinear boundary waves.

Last Updated on Friday, 22 October 2010 09:30
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Пьезоэлектрические кварцевые резонаторы и их применение в датчиках


 Пьезоэлектрический резонатор представляет собой электромеханическую систему, в которой используется явление прямого и обратного пьезоэффекта, которая обычно выполнена в виде двухполюсника, объединяющего системы электрического возбуждения механических колебаний и съема электрического сигнала, пропорционально их амплитуде. В виду целого ряда свойств одним из самых распространенных пьезоэлектриков, применяемых в пьезоэлектрических резонаторах, является пьезокварц. Кварцевые резонаторы имеют высокую добротность 107 и более, кратковременную и долговременную стабильность 10-4 до 10-7 , практически отсутствует гистерезис при механических, температурных и электрических воздействиях.

Last Updated on Tuesday, 25 October 2011 11:09

Compact quartz temperature sensor

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Quartz crystals are widely used in today's electronic equipment, generators and stable frequency filters. But quartz relevant sections and structures are also used to measure various physical parameters such as temperature, pressure, humidity, acceleration. [1,2] For example, pressure sensors. In precision barometer, a precise gauge of absolute pressure in downhole pressure sensors from companies such as Druck (UK), Quartzdyne (USA), Spartek Systems (Canada), Schlumberger (France), Ltd. "SKTB ELPA" (Russia) apply piezoresonance sensors (PCHE).

Last Updated on Monday, 19 March 2012 10:13

Quartz strain gauges - myths and reality

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  • A little over ten years ago, in the market of load cells used in electronic scales, a new type - quartz piezoresonance load cell (the quartz load cell). Prior to that time in the art, of course, dominated by two types of sensors - vibrochastotny and tensoresistance.
Last Updated on Tuesday, 16 November 2010 10:29

Digital sensors tenzokvartsevye

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  • Quartz load cells is the product of a new dynamic technology which in ten years has convincingly proved its competitiveness. The involvement of a growing number of businesses involved in the production, operation and maintenance of the devices using quartz load cells, leading to the popularization of this type by an adequate assessment of their benefits. The same process stimulates further work on improving the technology and products made ​​with it.
Last Updated on Tuesday, 15 February 2011 17:21

Prospective piezoresonance quartz pressure sensors

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 Analyzing the current situation on the market of sensitive elements (SE) of the pressure sensors, the following basic principles of their action: piezoresistive, capacitive, piezoelectric and piezoresonance).

Last Updated on Thursday, 07 July 2011 09:55

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