Microphone
From DDL Wiki
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Revision as of 13:01, 17 September 2009
| header 1 | header 2 | header 3 |
|---|---|---|
| Row header 1 | cell 1,1 | cell 1,2 |
| Row header 2 | cell 2,1 | cell 2,2 |
| Part Number | Photo | Part name | weight (g) | notes | Material | Manufacturing Method |
|---|---|---|---|---|---|---|
| 1 | Ring | 2 | attaches to mic end of boom shaft | |||
| 2 | Boom shaft | 493 | ||||
| 3 | Counterwieght | |||||
| 4 | Mic holder | 10 | ||||
| 5 | Bolt A | 3 | holds mic holder to #7 | |||
| 6 | Bolt B | 2 | #6 goes into #5 | |||
| 7 | (part that screws onto boom) | 12 | ||||
| 8 | (part that screws onto mic stand) | 71 | ||||
| 9 | Rubber pad (2X) | 8 | goes inside #8 to hold #11 in place | |||
| 10 | Bolt C | 16 | holds #8, #9, and #10 together | |||
| 11 | Boom holder | 65 | has a long hole in which the boom is inserted. Attaches to mic stand
via #8 | |||
| 12 | Washer | #10 goes throught this washer | ||||
| 13 | Ring | 2 | Identical to #1 | |||
| 14 | Handle | Has a threaded hole in which the end of #10 is inserted | ||||
| 15 | Thumbscrew | 3 | Holds boom in place. Goeas through hole in #11. Has plastic nub so as
not to scratch the boom | |||
| 16 | Wire clip | 2 | Attaches to mic stand, used to hold wire in place |
| Part Number | Photo | Part name | Weight (g) | Notes |
|---|---|---|---|---|
| M1 | cell 1,1 | Switch slider | <1 | cell 1,2 |
| M2 | cell 2,1 | Sticker A | <1 | Goes on M1 |
| M3 | cell 2,1 | Screw A (2X) | <1 | Holds switch electronics to the microphone body |
| M4 | cell 2,1 | Screw B | <1 | Atttaches gground pin to the back of the microphone body |
| M5 | cell 2,1 | Body | 187 | Large, machined |
| M6 | cell 2,1 | Rubber disc | 2 | Holds three pins in place |
| M7 | cell 2,1 | Pin | 1 | Transmits signal from the microphone to the wire |
| M8 | cell 2,1 | Switch electronics | 3 | Use physical user input from switch to affect electrical circuit |
| M9 | cell 2,1 | Foam cover | <1 | Covers the magnet and diaphragm |
| M10 | cell 2,1 | Plastic cover | 2 | Protects diaphragm and magnet |
| M11 | cell 2,1 | Chip | <1 | Takes signal from coil (M13) and transmits it to the the pins. Is glued to a slot on M16 |
| M12 | cell 2,1 | Diaphragm | <1 | Made from a thin piece of plastic with a spiral stamped into it to give it better elastic properties |
| M13 | cell 2,1 | Coil | <1 | Thin insulated copper wire |
| M14 | cell 2,1 | Magnet | 5 | Attached to diaphragm |
| M15 | cell 2,1 | Sticker B | <1 | Covers cavity in the housing, below where the magnet sits |
| M16 | cell 2,1 | Housing | 10 | Holds parts M11-M15, the parts that actually convert sound into an electrical signal |
| M17 | cell 2,1 | Wind screen | <1 | Made of a hollow foam ball. Inserted into the metal screen. Used to soften sounds of users' voices |
| M18 | cell 2,1 | Metal screen | 49 | Made of a wire mesh attached to metal rings
|
| header 1 | header 2 | header 3 |
|---|---|---|
| Row header 1 | cell 1,1 | cell 1,2 |
| Row header 2 | cell 2,1 | cell 2,2 |
Failure Modes and Effects Analysis
Considering ways in which a product could potentially fail is a crucial part of the design process. All products must be designed such that they are both safe and reliable for use and any potential dangers must be addressed in the design phase.
| Assembly/Parts | Failure Mode | Consequence of Failure | S | Causes of Failure | O | Prevention | D | RPN | Recommendations | Responsibility |
|---|---|---|---|---|---|---|---|---|---|---|
| On/Off Switch | Soldering Becomes Loose | Microphone will not turn on | 7 | Bad soldering | 2 | N/A | 2 | 28 | Check soldering before assembly | Controls engineer |
| Diaphragm | Torn Diaphragm | Inoperable | 7 | Misuse or Outside particles gets inside microphone | 1 | Foam Cover | 2 | 14 | None | N/A |
