Sensor technology carries out medium research and application in production
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source:CLAREY CNC Machining
As the swift and violent development of science and technology, be not the test of physical quantity and control technology, already more and more apply at spaceflight, aviation, traffic to carry widely, metallurgy, machinery is made, petrifaction, light industrial, technology is supervised wait for technical domain with the test, and go in the daily life that also introducing people stage by stage. Can say, check the on any account of technology and automata level, it is the important sign that measures level of modernization of science and technology of a country. Sensor technology is the important segment that implements test and automation. In testing a system, be regarded as appearance fixed position, its are main the feature is can accurate deliver and detect the information that gives some form, change its into the information of another configuration. Specifically sensor is to show the information with the certain some of those pairs of objects that be measured is had experience (or answer) give a function with check, make change into according to definite pattern to it yuan of corresponding parts of an apparatus that can output signal or device. If do not have sensor to undertake to the original message that is measured accurate and reliable capture and change, all accurate tests and control will not come true, although the modernest computer, without accurate information (or the data with reliable changeover) , do not break true input, also will not produce its due effect adequately. Sensor sort and breed are various, the principle is sundry also. Among them sensor of resistance strain type is be used extensively at electronic balance to mix the device measuring power of all sorts of new-style orgnaizations, its precision and limits are spent is according to needing to come the exorbitant precision of make choice of asks to be used to some kind also do not have too great sense, too wide range is spent also can make measure loss of accuracy, and can cause cost exorbitant reach the difficulty that increases craft to go up, accordingly, should the requirement according to measuring an object, it is crucial that appropriate choice precision and limits are spent. But the sensor that no matter why be planted,condition, circumstance uses, all ask its performance is steady, data is reliable, wear well. For this, researching high accuracy sensor while, must take the research of dependability and stability seriously. Current, include a bed dark implement research, design, trial-produce, production, detect wait with application all content inside sensor technology, already formed a relatively independent special course gradually. Usually, because the place of sensor setting is not ideal, below the combined influence of the effect such as temperature, humidity, pressure, can cause the change of sensor zero shift and sensitivity, already became the serious problem in using. Although people is in process of the sensor that make, took temperature compensation and sealed and moistureproof step, but it and meet an emergency piece, those who stick post glue itself those who stick post technology is glad to can be changed, accurate of the choice with material of skilled, elastomer and craft of cold, hot-working make all have close relationship, which cannot be ignored on one hand, need elaborate design and make. In the meantime, still need the installation method that notices sensor, the setting of the structure that prop up, how to overcome the problem such as transverse force. The sensor that serves as appearance is comprised by sensing element and changeover component normally. Changing element is accurate bridge. Accordingly, sensor of resistance strain type of put sb in a very important position of the balance that measure power is main by elastomer, meet an emergency piece, stick post glue to reach all sorts of compensation resistor to form. His stability also is necessarily by these component inside, the decision of integrated action place of external cause. The article at this point the problem undertakes discussing, talk about some of shallow view, with deliberate of person of the same trade. It is stretch component above all. Stretch component is by rolled steel of high grade alloy and nonferrous metal aluminium, Beryllium the treatment such as bronze shapes commonly, affect elastomer stability, basically be it reachs leftover stress via the metallographic organization after all sorts of processing. Considering the mutual balance when stress is released the relation reachs the tie of elastomer configuration, want to let leftover stress release, be about to have ageing treatment, this is in actual in if use method of natural effectiveness for a given period of time, release slow, cycle to grow, often cannot take, need shortens artificially time, the method that should eliminate stress of elastomer surface remains commonly is: Make vacuum temper processing and fatigue type pulsatile processing and resonance. Can reduce leftover stress substantially so, finish inside short time normally long natural effectiveness for a given period of time, make constituent performance more steady. Next, it is meet an emergency piece and stick receive glue. Influence meet an emergency piece of stability is foil itself, production meet an emergency piece resistor alloy is a lot of more phyletic, use with constantan alloy among them the widest, it has better stability, tall fatigue life reachs small resistor temperature coefficient, the filar bar that is ideal makes material. In addition, production meet an emergency piece the instability that undesirable effect should be removed in the process and causes. Be like: Of filar bar and base glue stick receive strength, meet an emergency piece with elastomer between stick post intensity, of base glue internal stress release etc, it is not stable element. Additional, meet an emergency piece stick post, also be one of very crucial essential factor, the stand or fall of this one job, affect glue directly stick receive quality, and even measure precision, if post piece lax case, technical inexperience, although use best strain piece also of no help. CNC Milling