Wiki source code of Wheel Encoder Assembly Guide
Version 20.1 by Eric Nantel on 2023/01/27 14:19
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8.1 | 2 | <body><table border="0" cellpadding="0" cellspacing="0" > |
| 3 | <tbody><tr> | ||
| 4 | <td valign="top" align="left"><b><font face="Verdana" size="2">Wheel | ||
| 5 | Encoder Assembly Guide. Updated <!--webbot bot="Timestamp" startspan | ||
| 6 | s-type="EDITED" s-format="%m.%d.%Y" -->02/16/2011<!--webbot | ||
| 7 | bot="Timestamp" i-checksum="12461" endspan --></font></b> | ||
| 8 | <p><font size="2"><b><font face="Verdana">Hardware:</font></b><font face="Verdana"><br> | ||
| 9 | - 1</font></font><font face="Verdana" size="2"> x GH Motor 7.2vdc | ||
| 10 | 50:1 175rpm (6mm shaft) (<a href="https://www.lynxmotion.com/showproduct.aspx?productID=96&CategoryID=11">GHM-04</a>)<br> | ||
| 11 | - 1 x Quadrature Motor Encoder (<a href="https://www.lynxmotion.com/showproduct.aspx?productID=448&CategoryID=11">QME-01</a>)</font></p> | ||
| 12 | <p><font size="2"><b><font face="Verdana">Goal:</font></b><font face="Verdana"><br> | ||
| 13 | - Install a wheel encoder on a motor.<br> | ||
| 14 | <br> | ||
| 15 | <b>Specs:</b><br> | ||
| 16 | - GHM-04 motor RPM under load = 7500 rpm<br> | ||
| 17 | - Encoder = 120 cycles per revolution<br> | ||
| 18 | - Encoder = 400 quadrature counts per revolution<br> | ||
| 19 | - Frequency = 30khz</font></font></p></td> | ||
| 20 | <td align="center" valign="top" width="320"><font face="Verdana" size="2"><a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/wheeled-tracked/wheel-encoder/WebHome/enc05.jpg" target="_blank"><img src="./build095_files/enc05s.jpg" border="2" hspace="10" ></a><br> | ||
| 21 | <strong>Image of encoder on motor.</strong></font></td> | ||
| 22 | </tr> | ||
| 23 | <tr> | ||
| 24 | <td valign="top" align="left"><font face="Verdana" size="2"> </font></td> | ||
| 25 | <td align="center" valign="top" ><font face="Verdana" size="2"> </font></td> | ||
| 26 | </tr> | ||
| 27 | <tr> | ||
| 28 | <td valign="top" align="center" colspan="2"> | ||
| 29 | <hr noshade="" color="#808080"> | ||
| 30 | </td> | ||
| 31 | </tr> | ||
| 32 | <tr> | ||
| 33 | <td valign="top" align="left"><font face="Verdana" size="2"> </font></td> | ||
| 34 | <td align="center" valign="top" ><font face="Verdana" size="2"> </font></td> | ||
| 35 | </tr> | ||
| 36 | <tr> | ||
| 37 | <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step | ||
| 38 | 1.<br> | ||
| 39 | </strong>If you going to solder to the motor tabs, it's a good idea to | ||
| 40 | bend them out of the way before installing the encoder. If you're going to | ||
| 41 | use push on connectors this step isn't necessary. Be sure to orient the | ||
| 42 | motor as shown EXACTLY as the raised plastic (name, logo and plus sign) | ||
| 43 | will prevent the adhesive from making good contact if the encoder is not | ||
| 44 | applied with the proper orientation.</font></td> | ||
| 45 | <td align="center" valign="top" ><font face="Verdana" size="2"><a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/wheeled-tracked/wheel-encoder/WebHome/enc01.jpg" target="_blank"><img src="./build095_files/enc01s.jpg" border="2" hspace="10" ></a><br> | ||
| 46 | Figure 1.</font></td> | ||
| 47 | </tr> | ||
| 48 | <tr> | ||
| 49 | <td valign="top" align="left"><font face="Verdana" size="2"> </font></td> | ||
| 50 | <td align="center" valign="top" ><font face="Verdana" size="2"> </font></td> | ||
| 51 | </tr> | ||
| 52 | <tr> | ||
| 53 | <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step | ||
| 54 | 2.</strong><br> | ||
| 55 | Before removing the adhesive backing material, fit the sensor to the motor | ||
| 56 | as shown. It has to be oriented EXACTLY as shown for proper fit. When you | ||
| 57 | are happy with the placement, remove the backing and carefully press it in | ||
| 58 | place. I have not needed the expensive alignment tool from US Digital to | ||
| 59 | do this, but you have to be careful not to press it firmly until it is | ||
| 60 | exactly centered. If you are good with your hands this will be easy. If | ||
| 61 | you have ten thumbs, you might want to ask for help.</font></td> | ||
| 62 | <td align="center" valign="top" ><font face="Verdana" size="2"><a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/wheeled-tracked/wheel-encoder/WebHome/enc02.jpg" target="_blank"><img src="./build095_files/enc02s.jpg" border="2" hspace="10" ></a><br> | ||
| 63 | Figure 2.</font></td> | ||
| 64 | </tr> | ||
| 65 | <tr> | ||
| 66 | <td valign="top" align="left"><font face="Verdana" size="2"> </font></td> | ||
| 67 | <td align="center" valign="top" ><font face="Verdana" size="2"> </font></td> | ||
| 68 | </tr> | ||
| 69 | <tr> | ||
| 70 | <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step | ||
| 71 | 3.</strong><br> | ||
| 72 | Simply press the encoder disk onto the motor shaft. Press it down firmly | ||
| 73 | and this step is complete.</font></td> | ||
| 74 | <td align="center" valign="top" ><font face="Verdana" size="2"><a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/wheeled-tracked/wheel-encoder/WebHome/enc03.jpg" target="_blank"><img src="./build095_files/enc03s.jpg" border="2" hspace="10" ></a><br> | ||
| 75 | Figure 3.</font></td> | ||
| 76 | </tr> | ||
| 77 | <tr> | ||
| 78 | <td valign="top" align="left"><font face="Verdana" size="2"> </font></td> | ||
| 79 | <td align="center" valign="top" ><font face="Verdana" size="2"> </font></td> | ||
| 80 | </tr> | ||
| 81 | <tr> | ||
| 82 | <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step | ||
| 83 | 4.</strong><br> | ||
| 84 | Snap on the top plastic part.</font></td> | ||
| 85 | <td align="center" valign="top" ><font face="Verdana" size="2"><a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/wheeled-tracked/wheel-encoder/WebHome/enc04.jpg" target="_blank"><img src="./build095_files/enc04s.jpg" border="2" hspace="10" ></a><br> | ||
| 86 | Figure 4.</font></td> | ||
| 87 | </tr> | ||
| 88 | <tr> | ||
| 89 | <td valign="top" align="left"><font face="Verdana" size="2"> </font></td> | ||
| 90 | <td align="center" valign="top" ><font face="Verdana" size="2"> </font></td> | ||
| 91 | </tr> | ||
| 92 | <tr> | ||
| 93 | <td valign="top" align="left"><font face="Verdana" size="2"><b>Step | ||
| 94 | 5.</b><br> | ||
| 95 | Insert the cable as shown.</font></td> | ||
| 96 | <td align="left" valign="top" > | ||
| 97 | <p align="center"><font face="Verdana" size="2"><a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/wheeled-tracked/wheel-encoder/WebHome/enc05.jpg" target="_blank"><img src="./build095_files/enc05s.jpg" border="2" hspace="10" ></a><br> | ||
| 98 | Figure 5.</font></p></td> | ||
| 99 | </tr> | ||
| 100 | <tr> | ||
| 101 | <td valign="top" align="left"><font face="Verdana" size="2"> </font></td> | ||
| 102 | <td align="center" valign="top" ><font face="Verdana" size="2"> </font></td> | ||
| 103 | </tr> | ||
| 104 | <tr> | ||
| 105 | <td valign="top" align="left"><font face="Verdana" size="2"><strong>Step | ||
| 106 | 6.</strong><br> | ||
| 107 | Red = +5vdc<br> | ||
| 108 | Black = Ground<br> | ||
| 109 | Green = Output A<br> | ||
| 110 | Yellow = Output B</font></td> | ||
| 111 | <td align="center" valign="top" ><font face="Verdana" size="2"><a href="https://wiki.lynxmotion.com/info/wiki/lynxmotion/download/wheeled-tracked/wheel-encoder/WebHome/enc06.jpg" target="_blank"><img src="./build095_files/enc06s.jpg" border="2" hspace="10" ></a><br> | ||
| 112 | Figure 6.</font></td> | ||
| 113 | </tr> | ||
| 114 | </tbody></table> | ||
| 115 | </body> | ||
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