Hello there,
Simple question about how fast a photo interrupter can perform:
The situtation (simple outline image also attached)
- photo interrupter positioned on a turning shaft (5 cm dia.)
- shaft profiled/formed so a disc profile shaft rotates inbetween the photo interrupter gap (3.2 or 2 mm)
- Disc form, has 5 holes in, equally spread apart by 72 d.
- Holes are approximatley 5mm diameter
- Shaft turns at 35 RPM
I've little experience of Photo Interrupter's and don't know if they operate fast enough at this RPM, or faster (max. RPM is 60). For example, maybe the disc hole passes the photo interrupter too fast to allow it to open/close the circuit?
Maybe this depends on the chip speed?
Maybe Photo Interrupters can operate with uSecond or pSecond speeds?
Appreciate anyones constructive help in advance.
rgds . john