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Products for USB Sensing and Control

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Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada

Draw Wire Encoder (2m)

ID: ENC4105_0

Like a digital tape measure, this 2m draw wire encoder measures the length of wire pulled out of it.

Discontinued

Replaced by the ENC4119 - Draw Wire Encoder (3m)

In complex mechanical systems, it is often very difficult to accurately measure the movement of a single part, especially if the linear alignment isn't guaranteed to be perfect. The draw wire encoder is a versatile solution to this very problem. When the wire is pulled out, the encoder produces a quadrature signal to describe the change in distance.

FUNCTIONAL

When the wire is pulled out, the sensor produces a quadrature signal to describe the length of wire exposed. The reel is spring loaded, so it will retract when there is no tension in the wire. Multiple draw wire sensors could be used to track the position in more than one dimension.

Connection

This quadrature encoder can be read by an encoder interface by fitting the end of the cable with the appropriate connector. See the Connection & Compatibility tab for details.

Encoder Interfaces

This draw-wire encoder must be read by an encoder interface. These interfaces will interpret the two quadrature signals in order to determine the continuous position of the draw wire. The following interfaces are compatible with this encoder:

Product Encoder Interface
Part Number Price Number of Encoder Inputs Count Rate Max
1047_1B
PhidgetEncoder HighSpeed 4-Input
$80.00 4 1E+06 pulses/s
1047_2B
PhidgetEncoder HighSpeed 4-Input
$75.00 4 1E+06 pulses/s
1057_2B
PhidgetEncoder HighSpeed
$55.00 1 2E+06 pulses/s
1057_3B
PhidgetEncoder HighSpeed
$50.00 1 1E+06 pulses/s
1065_1B
PhidgetMotorControl 1-Motor
$75.00 1 500000 cycles/s
DCC1000_0
DC Motor Phidget
$75.00 1 400000 pulses/s
DCC1002_0
4A DC Motor Phidget
$40.00 1 400000 pulses/s
ENC1001_0
Quadrature Encoder Phidget
$15.00 1 1E+06 pulses/s

Encoder Cables

You can easily connect this draw-wire encoder to a Phidgets encoder interface by cutting the end off of a Phidget encoder cable and soldering the wires to the encoder as described in this table. Below you'll find a list of available encoder cables:

Function ENC4105 - Encoder 3019 - Phidget cable
+5V Red Red
Ground Black Black
Data (A) White White
Data (B) Green Brown
Index (Z) Yellow Green
Functional

Alternatively, you could buy the male connector (Molex part 50-57-9405), and crimp it onto the end of the cable, if you have the appropriate tools.

Product Physical Properties
Part Number Price Cable Length Cable Gauge
3019_0
HighSpeed Encoder Cable 50cm
$5.00 500 mm 26 AWG

Product Specifications

Encoder Properties
Output Circuit Type Push-Pull
Draw Wire Resolution 25 μm/pulse
Wire Pull Length 2 m
Electrical Properties
Supply Voltage Min 5 V DC
Supply Voltage Max 26 V DC
Current Consumption Max 60 mA
Physical Properties
IP Rating IP54
Wire Load Maximum 16 kg
Wire Pull Speed Max 1 m/s
Weight 420 g
Operating Temperature Min -20 °C
Operating Temperature Max 80 °C
Screw Thread Size M5
Customs Information
Canadian HS Export Code 9029.10.00
American HTS Import Code 9029.10.80.00
Country of Origin CN (China)

Here are our draw wire encoders:

Product Encoder Properties Physical Properties
Part Number Price Output Circuit Type Length Resolution Wire Pull Length Weight
ENC4118_0
Draw-Wire Encoder - 1000mm
$100.00 Push-Pull 1 m 400 g
ENC4119_0
Draw-Wire Encoder - 3000mm
$150.00 Push-Pull 3 m 790 g