Abstract
In natural atmospheric situation, the laser impulse coupling coefficients for aluminium targets are measured on our piezoelectric sensor. The sandwich structure of the sensor is specially designed to enhance its response sensitivity. The relationship between the laser impulse and voltage signals of the sensor is given. The results show that when the laser pulse width is 10 ns, the radiation energy is 12·7 mJ and the beam spot area is 0·43 mm2, the laser impulse coupling coefficient Cm has the maximum value which is 47·1×10−5 kg·m·s−1 J−1.
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