2017:Electrical Main: Difference between revisions

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Insert details/designs/drawings/info/notes relevant to overall electrical systems here....
Insert details/designs/drawings/info/notes relevant to overall <span style="font-family:times new roman,times,serif;">electrical</span>&nbsp;systems here....


= Speed Controllers =
= Speed Controllers =


= Circuit Breakers =
= Circuit Breakers =
[[File:VB3 Spec Sheet.pdf|thumb|left|30A and 20A circuit breaker datasheet]]
[[File:MX5 Spec Sheet.pdf|thumb|left|40A circuit breaker datasheet]]


= Sensors =
= Sensors =
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***Both are electrically the same and the physical dimensions are the same
***Both are electrically the same and the physical dimensions are the same
***Both are 256 pulses per revolution
***Both are 256 pulses per revolution
**Magnetic shaft encoder
**CTR Magnetic shaft encoder
***1024 pulses per revolution
*'''Optical Beam Sensors (Banner-like)'''
*'''Optical Beam Sensors (Banner-like)'''
**Omron SW1839-ND or similar&nbsp;
**Omron SW1839-ND or similar&nbsp;
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== Sensor Measurements: ==
== Sensor Measurements: ==


{| id="product-details" border="0" cellspacing="0" cellpadding="0" style="width: 399px; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 12px;"
*SW1839-ND
|-
*MB1010 LV-MaxSonar-EZ1
| id="reportPartNumber" style="padding: 4px 6px; border-right-color: rgb(153, 153, 153); border-bottom-color: rgb(153, 153, 153); border-left-color: rgb(153, 153, 153); border-top: 0px none;" | <font color="#333333" face="sans-serif, Arial, Verdana, Trebuchet MS"><span style="font-size: 13px;">SW1839-ND</span></font>
**Ultrasonic (sonar) sensor
|}
**Set up on bench at a height of 9"
**Monitored analog output with voltmeter - with the 5V supply, scaling is 9.76V/inch
**First tried a flat board approx 12X16 oriented perpendicular to the sensor:
***with board at 12", measurement was 10"
***with board at 16", measurement was 15"
***with board at 24", measurement was 23"
**With board laid down flat on tabletop, approx 3/4" thick:
***with board front edge at 24", measurement was 25"
***with board front edge at 16", measurement was 17"
**With board horizontal but held at the same height at the center of the sensor:
***with board front edge at 24", measurement was 22"
**With a Fuel ball on the tabletop, the center of the ball approx 6.5" below the center of the sensor::
***with the front of the ball at 12", measurement was 10"
***with the front of the ball at 16", measurement was 15"
***with the front of the ball at 24", measurement was 22"
**Conclusions:
***the sensor can be fooled by any object within it's field of view - the measurement will be of the closest object, even if it is not the largest object.
***Accuracy between different sized objects at the same distance may be about 2" variation.
***Depending upon the mounting height of the sensor, it will respond to objects on the floor.
***A narrower field of view might be desireable.
**Calibration:
***The sensor was power cycled with a shoebox&nbsp;at 24" from the sensor.
***The initial value was very repeatable at powerup with a reading of&nbsp;24.9"


= Archives =
= Archives =

Latest revision as of 14:46, 4 February 2017

Insert details/designs/drawings/info/notes relevant to overall electrical systems here....

Speed Controllers

Circuit Breakers

File:VB3 Spec Sheet.pdf

File:MX5 Spec Sheet.pdf

Sensors

Sensor Types

Sensor Measurements:

  • SW1839-ND
  • MB1010 LV-MaxSonar-EZ1
    • Ultrasonic (sonar) sensor
    • Set up on bench at a height of 9"
    • Monitored analog output with voltmeter - with the 5V supply, scaling is 9.76V/inch
    • First tried a flat board approx 12X16 oriented perpendicular to the sensor:
      • with board at 12", measurement was 10"
      • with board at 16", measurement was 15"
      • with board at 24", measurement was 23"
    • With board laid down flat on tabletop, approx 3/4" thick:
      • with board front edge at 24", measurement was 25"
      • with board front edge at 16", measurement was 17"
    • With board horizontal but held at the same height at the center of the sensor:
      • with board front edge at 24", measurement was 22"
    • With a Fuel ball on the tabletop, the center of the ball approx 6.5" below the center of the sensor::
      • with the front of the ball at 12", measurement was 10"
      • with the front of the ball at 16", measurement was 15"
      • with the front of the ball at 24", measurement was 22"
    • Conclusions:
      • the sensor can be fooled by any object within it's field of view - the measurement will be of the closest object, even if it is not the largest object.
      • Accuracy between different sized objects at the same distance may be about 2" variation.
      • Depending upon the mounting height of the sensor, it will respond to objects on the floor.
      • A narrower field of view might be desireable.
    • Calibration:
      • The sensor was power cycled with a shoebox at 24" from the sensor.
      • The initial value was very repeatable at powerup with a reading of 24.9"

Archives

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