How does the WaveRIDER detect a chip wave?
Chip wave data is determined in the same manner as the solder wave. The presence of a chip wave is automatically detected when two solder contact points are detected on sensors A or B, or four solder contact points measure by sensor “C” / Speed Sensor. Thus, the solder contact time between the chip and solder wave for the C sensor must be greater than 1.5 seconds to be counted as separate wave contacts. If less than 1.5 seconds, the multiple solder contacts are considered “noise” or contact bounce and are counted as one wave contact rather than two. In addition, as the distance between the chip and solder wave gets larger, time between the C sensor leaving the solder wave and the Speed sensor hitting the chip wave must also be less than 1.5 seconds. If not, these two solder contacts will be seen as one for the same reasons stated above. Figure B-1 illustrates the interaction between the two waves and the WaveRIDER pallet sensors. The travel time between sensors C and speed between the
