I am working on an application on Labview where will be indicated the position varition of a metallic beam with up to 20 Hz harmonic movement. The project is just beginning and we dont know the exact type of sensor to be used. I think a IR reflective sensor like Sharp GP2Y0A02YK0F would be useful. This sensor will be positioned above the beam to catch the movement amplitude. It would be very nice if someone could express an opinion about the eficiency of this kind of sensor for this application, or indicate other sensor and ways for measuring. I am worried if a IR sensor is precise for the measuring the amplitude of the mentioned movement, because I need to get the graph on Labview.