| 摘要 |
<p>According to the present invention it is possible to identify a sample material adhered to a test subject easily and with a high degree of accuracy, and an improvement in the work rate and a reduction in the number of personnel needed for testing can also be achieved. The present invention comprises detection means for detecting the size (length/width dimensions) of the test subject and, depending on the size of the test subject detected by the detection means, air nozzles which can spray air jets at 15 m/s or more onto a test material surface are chosen from a plurality of air nozzles, and air jet spraying takes place.</p> |
