Abstract: the Beijing days kang _ what methods of solving sensor drift information produced by excellent flow meter, flow meter manufacturer to offer you the quotation.
What methods of solving sensor drift?
Sensor is a kind of commonly used detection device, is widely applied in multiple industries.
As long as there is electronic components will drift, the sensor is no exception.
There are two kinds of sensor drift.
More flow meter manufacturers choose model price quote you are welcome to inquire, here is Beijing, tecon _ what methods of solving sensor drift article details.
What methods of solving sensor drift?
Sensor is a kind of commonly used detection device, is widely applied in multiple industries.
As long as there is electronic components will drift, the sensor is no exception.
Sensor drift has two zero drift and temperature drift, these two kinds of drift of sensor measurement accuracy is the existence of great influence.
So how to solve these problems?
Below small make up for everybody what are specific to introduce the ways to solve the sensor drift.
The sensor zero drift can be caused by many reasons.
As for pressure sensor, the bridge circuit element parameters in itself is asymmetric;
Elastic element and a sensitive grid material temperature coefficient of resistance strain gage, different linear expansion coefficient, comprehensive factors such as inconsistent set of bridge wire length, zui causes the overall temperature coefficient of sensor after the bridge adjacent arm has a certain difference, when the temperature changes, the adjacent arm resistance variation is different, so that the bridge output is not balance, namely the zero drift;
For smart sensors, bleaching & ndash;
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For the system, with the increase of time, is equivalent to the aging of the system for processing, in this way, the structure characteristics of the system is about to change, resulting in a drift.
Temperature drift & ndash;
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Affected by the temperature instability caused by zero.
Visible, the influence of temperature is the main factor that produces zero drift zui, zui is difficult to control.
To solve the temperature drift generally there are two kinds of methods, hardware and software.
For pressure sensor, hardware method is appropriate constant in series and parallel bridge arm resistance method, bridge arm thermistor compensation method, bridge outside the thermistor in series, in parallel compensation method, double bridge compensation technology, triode compensation technique, etc.
A software methodology is eliminated by software program migration, this method corresponding digital output of the sensor is very practical, customers can themselves by writing software to realize, or is the sensor with digital display table when can also be done by regulating digital display table.
Is very convenient.
Under the form of the development of modern science and technology, the measuring accuracy is higher and higher, therefore to reduce or eliminate temperature sensor error is particularly important.
Customer needs when found sensor drift, request sensors to provide solutions to drift.
Above is all there is in this article, you are welcome to inquire me manufacturer
flowmeter selection, quotation, etc.
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