Page 373 - Mechatronics with Experiments
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JWST499-c06
JWST499-Cetinkunt
SENSORS 359 254mm×178mm
Detecting the presence/absence of Detecting the wafers in drying furnace
a seal (rubber piece) on a electrolytic capacitor
Detecting the passing of PCBs in a reflow furnace Detecting the lead-wires of resistors
(a)
Sensor head
Receiver array
CCD
Reflected light
Laser emitter
A
B
Target object
Target object
at position 1
at position 2
(b)
FIGURE 6.31: (a) Applications of reflective types of light sensors: presence sensors with
ON/OFF output, and (b) distance sensor using triangularization in a laser sensor.
