Because there was the cross sensitivity of two sensors to CO and methane gas in mine,a gas sensor array system based on BP neural network and the method of signal processing on BP neural network for increasing precision of detection CO were researched in this paper.

Then a novel plan to increase the sensitivity was proposed in view of the wavelength difference among various region,thus both the sensitivity is doubled and the cross sensitivity is solved.

On the basis of the equation of Bragg gratings,the physical mechanics of the cross sensitivity from simultaneous measurement of strain and temperature with optical fiber Bragg grating are studied.

Research on division of cross-sensitivity of strain and temperature of FBG;

Research on fiber grating cross-sensitivity by triangle filter;

Research on Solutions of Cross-sensitivity of Fiber Grating sensing;

The uniform crossover operator is used to enhance the searching ability of the algorithm,and a migration strategy is applied,which lets the best individuals migrate between subpopul.

And Uniform Crossover is used as the crossover operator.

To enhance the quality factor and eliminate cross-sensitivity of electrothermally driven resonant microaccelerometer, a novel design based on triple-beam structure has been proposed.

Experiment results show that the method can well restrain cross-sensitivity of sensor and improve measuring precision.

To take the vibrator-type sensor for example,two sensors fusion arithmetic is used to reduce cross-sensitivity of non-target parameters,such as temperature,etc.