Research On Experiment And Data Processing Meathod Of Certain Minisize Pressure Sensor Instantaneous Light Effect

There exist the light sense organs in measuring an implement named sensor in measurement surpassing pressure in explosive blast wave, the explosive light accompanies the explosion is capable to do the component affecting the sensor's organs, say this affects being a sensor's transient light effect generally. There inevitable zone has obvious measurement error since the existence that this affects measures result really, author must try to diminish or remove the sensor transient light effect for getting true the pressure parameter. On the basis of having analysed sensor structure and measuring a curve,the paper departs the research into two aspects, first, the light effect has carried out the rule having simulated experiments , having reached a light effect's and has verified the feasibility diminishing light effect in two kinds method; And then, the separation setting off from signal treatment angle being in progress to the signal handles.One aspect; Author has analysed the tiny sensor's transient light effect theoretically,and summed up the research job about diminishing silicon diaphragm pressure sensor transient light effect aspect , basis on this author has designed three kinds imitating experiment, by the experiments author has gained the sensor transient light effect law and found out two kinds of approach to cut down transient light effect , the experiment conclusion can guide explosion blast wave surpass pressure to a certain extent in future.But all above method can not remove the light effect completely , the paper is complied with first having analysed the feasibility separating the light effect signal theoretically, the author first carries out separation on simple simulated signal under direction building the model and nonlinear least-squares fitting theory knowledge in system law handling result being all that could be desired, But measure a curve here on the basis to reality having realized ARMA building the model pretreatment, abrupt change component and noise of the curve have badly affected fitting effect, and led to have no way to reach the function expression of reality measuring the curve determinacy part, this has affected achieving purpose which realizing the apart the light effect signal and the blast wave, This problem effective solve pend for going a step further in work the field studies in a deepgoing way.