2009:Electrical Main 1.17.2009: Difference between revisions

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1.17.2009  
1.17.2009  


'''Start time: '''11:00<br>  
'''Start time: '''11:00<br>


'''End time: '''<br>  
'''End time: '''<br>


'''Members present: '''Michael H., Dave(Apples), Dave(oranges), Rika, Victor, Sean<br>  
'''Members present: '''Michael H., Dave(Apples), Dave(oranges), Rika, Victor, Sean<br>


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'''Tasks Completed:'''<br>  
'''Tasks Completed:'''<br>


*Investigates Shaft Encoder - US Digital E4P-250-250-D-D-D-B
*Investigated Shaft Encoder - US Digital E4P-250-250-D-D-D-B


&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -Mounts on 1/4" shaft(press on, no set screw required)  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -Mounts on 1/4" shaft(press on, no set screw required)  
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*Investigated a second shaft encoder for larger diameter motor shaft of 0.375" (3/8") which the mechanical subteam prefers<br>
*Investigated a second shaft encoder for larger diameter motor shaft of 0.375" (3/8") which the mechanical subteam prefers<br>


&nbsp;&nbsp;&nbsp;&nbsp; -US Digital E7P-375-S-H-G-3  
&nbsp;&nbsp;&nbsp;&nbsp; -US Digital E7P-180-375-S-H-G-3  


&nbsp;&nbsp;&nbsp;&nbsp; -this accomodates .375" shaft and has a thru-hole and extra mounting ears.  
&nbsp;&nbsp;&nbsp;&nbsp; -this accomodates .375" shaft and has a thru-hole and extra mounting ears.  
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&nbsp;&nbsp;&nbsp;&nbsp; -outboard mounting ears have 0.116D holes.  
&nbsp;&nbsp;&nbsp;&nbsp; -outboard mounting ears have 0.116D holes.  


*Found a banner sensor.&nbsp;Reciever specs are as follows:<br>- Part number: [http://www.bannerengineering-online.com/Banner-Q10-Sensor.htm Q10RP6R ]- Q10 Series: Receiver <br>- Range: 1.8 m <br>- Input: 10-30V dc <br>- Output: Dark Operate (Means that the sensor activates when the beam is broken)<br>- PNP<br>- Cable length:&nbsp;2 m (6.5 ft)<br>- Price: $36.80<br>  
*Found a banner sensor.&nbsp;Reciever specs are as follows:<br>- Part number: [http://www.bannerengineering-online.com/Banner-Q10-Sensor.htm Q10RP6R ]- Q10 Series: Receiver <br>- Range: 1.8 m <br>- Input: 10-30V dc <br>- Output: Dark Operate (Means that the sensor activates when the beam is broken)<br>- PNP<br>- Cable length:&nbsp;2 m (6.5 ft)<br>- Price: $36.80<br>
*Emmiter specs are here:<br>- Part number: [http://www.bannerengineering-online.com/Banner-Q10-Sensor.htm Q106E] Q10 Series: Emitter<br>- Range: 1.8 m<br>- Input: 10-30V dc <br>- No outputs<br>- Cable length: 2 m (6.5 ft)<br>- Price: $31.28<br>  
*Emmiter specs are here:<br>- Part number: [http://www.bannerengineering-online.com/Banner-Q10-Sensor.htm Q106E] Q10 Series: Emitter<br>- Range: 1.8 m<br>- Input: 10-30V dc <br>- No outputs<br>- Cable length: 2 m (6.5 ft)<br>- Price: $31.28<br>
*Finally re-made the BOM  
*Finally re-made the BOM  
*Decided that Hopper will have two banner sensors and that the conveyor will not require the full 8 sensors originally talked about.  
*Decided that Hopper will have two banner sensors and that the conveyor will not require the full 8 sensors originally talked about.  
*Put Brundy hardware on the batteries and Anderson pre-made pigtails.
*Put Brundy hardware on the batteries and Anderson pre-made pigtails.


<br>  
<br>


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'''Tasks In Progress:'''<br>  
'''Tasks In Progress:'''<br>


*task  
*task  
*task
*task


<br>  
<br>


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'''Tasks to Complete: '''<br>  
'''Tasks to Complete: '''<br>


*Design "homemade" shaft encoder for conveyor motors.  
*Design "homemade" shaft encoder for conveyor motors.  
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&nbsp;&nbsp;&nbsp;&nbsp; -Determine how fast we can move a mouse and still not lose encoder counts.  
&nbsp;&nbsp;&nbsp;&nbsp; -Determine how fast we can move a mouse and still not lose encoder counts.  


<br>  
<br>


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Revision as of 17:08, 17 January 2009

1.17.2009

Start time: 11:00

End time:

Members present: Michael H., Dave(Apples), Dave(oranges), Rika, Victor, Sean


Tasks Completed:

  • Investigated Shaft Encoder - US Digital E4P-250-250-D-D-D-B

      -Mounts on 1/4" shaft(press on, no set screw required)

      -Mounts with 3-48 screws on flat plate or motor housing

      -Needs +5 V supply, 18 MA for LED, 5 MA, for detector

      -Output V high - 2.4, low - 0.4, with 2.7k ohms Pull-up resistor

      -250 counts per revolution(CPR); at expected motor transmission output RPM of 350, this gives about 2917Hz output.

      -Price - $22.95 - 1, $18.04 - 10

  • Investigated a second shaft encoder for larger diameter motor shaft of 0.375" (3/8") which the mechanical subteam prefers

     -US Digital E7P-180-375-S-H-G-3

     -this accomodates .375" shaft and has a thru-hole and extra mounting ears.

     -Price is $43.50 - 1

     -Electrically the same as E4P above, except slightly higher current of 27mA.

     -we don't need a lot of resolution, so we'll get the lowest resolution 180 counts per revolution (CPR) which should give about 2100Hz at 350RPM.

     -outboard mounting ears have 0.116D holes.

  • Found a banner sensor. Reciever specs are as follows:
    - Part number: Q10RP6R - Q10 Series: Receiver
    - Range: 1.8 m
    - Input: 10-30V dc
    - Output: Dark Operate (Means that the sensor activates when the beam is broken)
    - PNP
    - Cable length: 2 m (6.5 ft)
    - Price: $36.80
  • Emmiter specs are here:
    - Part number: Q106E Q10 Series: Emitter
    - Range: 1.8 m
    - Input: 10-30V dc
    - No outputs
    - Cable length: 2 m (6.5 ft)
    - Price: $31.28
  • Finally re-made the BOM
  • Decided that Hopper will have two banner sensors and that the conveyor will not require the full 8 sensors originally talked about.
  • Put Brundy hardware on the batteries and Anderson pre-made pigtails.



Tasks In Progress:

  • task
  • task



Tasks to Complete:

  • Design "homemade" shaft encoder for conveyor motors.
  • Communicate sensor mounting to Mechanical teams.
  • Experiment with mice as sensors.  

     -Test interfacing...  There are two ways to do this either use a PS/2 mouse and decode the packet (talk with programming about this), or take encoder readings straight from

      encoders (if we use a ball mouse).

     -Mock up ball mouse with encoder outputs.

     -Determine how fast we can move a mouse and still not lose encoder counts.



Images & Additional Updates:

File:BOM.xls