Sensor Assembly
Version 7 (J. Simmons, 04/30/2018 06:58 pm)
1 | 1 | J. Simmons | h1. Sensor Assembly |
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2 | 1 | J. Simmons | |
3 | 1 | J. Simmons | {{>toc}} |
4 | 1 | J. Simmons | |
5 | 1 | J. Simmons | h2. Tools |
6 | 1 | J. Simmons | |
7 | 1 | J. Simmons | * Holoseat Test Stand with computer to operate it |
8 | 1 | J. Simmons | * Soldering iron with stand |
9 | 1 | J. Simmons | * Helping hands |
10 | 1 | J. Simmons | * Exhaust fan |
11 | 1 | J. Simmons | * Sensor assembly jig (3D printed tool - provide link) |
12 | 1 | J. Simmons | * Flush snips |
13 | 1 | J. Simmons | * Safety glasses |
14 | 1 | J. Simmons | |
15 | 1 | J. Simmons | h2. Materials |
16 | 1 | J. Simmons | |
17 | 1 | J. Simmons | * Instant/super glue (prefer Loctite Super Glue Ultragel Control) |
18 | 1 | J. Simmons | * Solder |
19 | 6 | J. Simmons | * Isopropyl alcohol |
20 | 6 | J. Simmons | * Cotton balls |
21 | 3 | J. Simmons | * (1) WSSM-01: TRRS Audio Connector PCB |
22 | 3 | J. Simmons | * (1) WSSM-02: TLE4966L Infineon Technologies High Precsn Hall / Board Mount Hall Effect/Magnetic Sensor |
23 | 2 | J. Simmons | * (1) WSSM-03: Sensor Housing Lower Half |
24 | 1 | J. Simmons | * (1) WSSM-04: Sensor Housing Upper Half |
25 | 6 | J. Simmons | * (1) WSSM-05: 3M 9472LE Tape 5/8" x 1" piece |
26 | 1 | J. Simmons | |
27 | 1 | J. Simmons | h2. Safety Issues |
28 | 1 | J. Simmons | |
29 | 2 | J. Simmons | * Care must be taken when using the soldering iron, the tip is very hot |
30 | 2 | J. Simmons | * Always wear safety glasses while working with soldering irons |
31 | 2 | J. Simmons | * Avoid breathing in the soldering fumes, use a vent or hood if needed to provide adequate ventilation |
32 | 1 | J. Simmons | |
33 | 1 | J. Simmons | h2. Product |
34 | 1 | J. Simmons | |
35 | 1 | J. Simmons | HS-04: Wheel Speed Sensor Module |
36 | 6 | J. Simmons | *Insert Pic* |
37 | 1 | J. Simmons | |
38 | 1 | J. Simmons | h2. Procedure |
39 | 1 | J. Simmons | |
40 | 3 | J. Simmons | h3. 1. Place sensor on TRRS Audio Connector PCB |
41 | 3 | J. Simmons | |
42 | 3 | J. Simmons | # Place *WSSM-02: TLE4966L Sensor* in jig with label facing “out” (toward window in jig) |
43 | 3 | J. Simmons | # Slide *TLE4966L Sensor* into jig until its label aligns can be seen through the window in jig |
44 | 3 | J. Simmons | # Bend *TLE4966L Sensor* leads down along jig |
45 | 3 | J. Simmons | # Place *TLE4966L Sensor* pins through holes in *WSSM-01: TRRS Audio Connector PCB* with the jack facing up |
46 | 3 | J. Simmons | # Align *TRRS Audio Connector PCB* with lip on jig |
47 | 3 | J. Simmons | # Bend *TLE4966L Sensor* leads over to fix position of sensor relative *TRRS Audio Connector PCB* |
48 | 3 | J. Simmons | # Remove *TLE4966L Sensor/TRRS Audio Connector PCB* sub-assembly from jig |
49 | 1 | J. Simmons | |
50 | 4 | J. Simmons | *INSERT VIDEO of Step 1 Procedure Here* |
51 | 4 | J. Simmons | |
52 | 4 | J. Simmons | h3. 2. Solder TLE4966L Sensor to TRRS Audio Connector PCB |
53 | 4 | J. Simmons | |
54 | 5 | J. Simmons | # Place *TLE4966L Sensor/TRRS Audio Connector PCB* sub-assembly in helping hands |
55 | 5 | J. Simmons | *Insert Pic* |
56 | 1 | J. Simmons | # Solder all 4 *TLE4966L Sensor* leads to their pins on the *TRRS Audio Connector PCB* |
57 | 5 | J. Simmons | # Trim back excess leads from *TLE4966L Sensor* |
58 | 5 | J. Simmons | *Insert Pic* |
59 | 1 | J. Simmons | |
60 | 1 | J. Simmons | h3. 3. Verify sensor |
61 | 5 | J. Simmons | |
62 | 5 | J. Simmons | # Place *TLE4966L Sensor/TRRS Audio Connector PCB* sub-assembly in *WSSM-03: Sensor Housing Lower Half* |
63 | 5 | J. Simmons | *Insert Pic* |
64 | 5 | J. Simmons | # Connect sensor cable from test stand to *Wheel Speed Sensor* sub-assembly |
65 | 5 | J. Simmons | # Place *Wheel Speed Sensor* sub-assembly in sensor mount on test stand |
66 | 5 | J. Simmons | *Insert Pic* |
67 | 5 | J. Simmons | # Run tests - see test stand for API calls/application used for these tests |
68 | 5 | J. Simmons | ## Verify direction |
69 | 5 | J. Simmons | ### it should report cw when wheel turns 20 rpm cw |
70 | 5 | J. Simmons | ### it should report ccw when wheel turns 20 rpm ccw |
71 | 5 | J. Simmons | ## Verify cadence |
72 | 5 | J. Simmons | ### it should report 30 +/- 10% when wheel turns cw at 30 rpm |
73 | 7 | J. Simmons | ### it should report 45 +/- 15% when wheel turns cw at 45 rpm |
74 | 1 | J. Simmons | |
75 | 1 | J. Simmons | h3. 4. Finish assembly |
76 | 6 | J. Simmons | |
77 | 6 | J. Simmons | # Take *Wheel Speed Sensor* sub-assembly off test stand |
78 | 6 | J. Simmons | # Place *WSSM-04: Sensor Housing Upper Half* on top of *WSSM-03: Sensor Housing Lower Half* |
79 | 6 | J. Simmons | *Insert Pic* |
80 | 6 | J. Simmons | # Press *Sensor Housing Upper Half* into *Sensor Housing Lower Half* until it clicks into place and sits flush on the *Sensor Housing Lower Half* |
81 | 6 | J. Simmons | *Inser Pic* |
82 | 6 | J. Simmons | # Add *9472LE Tape* |
83 | 6 | J. Simmons | ## Clean the bottom of the *Wheel Speed Sensor Module* with isopropyl alcohol using a cotton ball |
84 | 6 | J. Simmons | ## Wait for the alcohol to dry |
85 | 6 | J. Simmons | ## Cut 5/8" long piece of *9472LE Tape* |
86 | 6 | J. Simmons | ## Apply *9472LE Tape* to the bottom of the *Wheel Speed Sensor Module* |
87 | 6 | J. Simmons | *Insert Pic* |
88 | 6 | J. Simmons | ## Press *Wheel Speed Sensor Module* firmly onto a flat surface for 60 seconds |
89 | 6 | J. Simmons | ## Trim excess tape off of *Wheel Speed Sensor Module* |
90 | 6 | J. Simmons | *Insert Pic* |