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avtogeneratorGR-3K avtogeneratorD660 avtogeneratorD650

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency. This frequency is commonly used to keep track of time (as in quartz wristwatches), to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers. The most common type of piezoelectric resonator used is the quartz crystal, so oscillator circuits incorporating them became known as crystal oscillators, but other piezoelectric materials including polycrystalline ceramics are used in similar circuits.

Last Updated on Friday, 10 October 2014 09:05

About fource quartz piezoelectric elements

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EPKV-10M is glued with epoxy glue to one side of the electrode on clean and fat-free surface, the central part of the area shall be free (see drawing). After the glue has dried to the pads of the piezoelectric element, if necessary, two wires are soldered. 
Silochuvstvitelnaya characteristic EBL-10M in the free state is practically linear. If the element is glued, the nonlinearity silochuvstvitelnoy characteristics must be determined individually.
In siloperedayuschem device trade weights used differential, ie working couple silochuvstvitelnyh piezo EPKV-10M.

Last Updated on Friday, 22 October 2010 09:22

Temperature-frequency response of the resonator RKMA gauge and generator circuit for the pressure transducer

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 Sensitive elements in quartz temperature transmitters are temperature-sensitive quartz resonators and transducers pressure - Manometric quartz resonators.
Calibration characteristic resonators described polynomial of second or third degree (approximation error of no more than 0.05% and 0.02%, respectively). F (P) = f O + A 1 * P + A 2 * P 2 + A * P 3 3
To compensate for the temperature error of temperature and frequency response is described as a polynomial of second or third degree (see example in Fig. Below).


Last Updated on Monday, 19 March 2012 10:30

Reference (precision) thermometer with an accuracy of 0.01 degrees Celsius temperature

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This device allows you to measure the temperature with an accuracy of 0.01 degrees Celsius and is essentially a high-precision temperature measurement precision. Temperature sensor in the thermometer is thermo-sensitive crystal type RКТ206.


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Last Updated on Tuesday, 02 November 2010 14:53

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