6-DOF PPOD - Revision history

JonathanDrake: /* Mechanical Design */

2010-03-18T22:29:08Z

Mechanical Design

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 == Mechanical Design ==
 <ul>
 <li>1/2" diameter rod is superglued to the interior cavity of the speaker</li>
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 The accelerometers are attached to 1x1x1 inch cubes of solid acrylic that are glued to the underside of the disk. There are three accelerometers attached to the table. The accelerometer mount side of the cube has four holes drilled into each corner to screw the accelerometer board into place. A notch was milled out of the surface for the solder tips, allowing the accelerometer to be flush with the surface of the cube ensuring an accurate reading.
 The disk is 11.5 inch in diameter cut from quarter inch thick acrylic. The speaker attachments are all 60 degrees apart, alternating between vertical and horizontal speakers. All speakers are attached in a symmetrical pattern ensuring the accuracy of the calibration program and the force patterns on the surface. Acrylic was chosen for all the components because of its workability in the Ford machine shop and for its ability to be glued together quite easily.
 == Circuit Design ==

2010-03-18T22:25:06Z

Parts List

← Older revision		Revision as of 17:25, 18 March 2010
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	<li>Unity Gain Buffer: [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND LM741] general purpose op-amp</li>		<li>Unity Gain Buffer: [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND LM741] general purpose op-amp</li>
	<li>Speaker Amp: [http://www.national.com/ds/LM/LM1875.pdf LM1875] 20W Audio Power Amplifier</li>		<li>Speaker Amp: [http://www.national.com/ds/LM/LM1875.pdf LM1875] 20W Audio Power Amplifier</li>
			<li>Heat sink: attached to LM1875</li>
	<li> Accelerometer: [http://www.analog.com/en/mems/low-g-accelerometers/adxl325/products/product.html ADXL325] 3-AXIS ±5 G</li>		<li> Accelerometer: [http://www.analog.com/en/mems/low-g-accelerometers/adxl325/products/product.html ADXL325] 3-AXIS ±5 G</li>
	<li>Speakers: generic 6 ohm, 2" diameter (INSERT SPEAKER SPECs, link)</li>		<li>Speakers: generic 6 ohm, 2" diameter (INSERT SPEAKER SPECs, link)</li>

2010-03-18T22:24:15Z

Parts List

← Older revision		Revision as of 17:24, 18 March 2010
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	===Parts List===		===Parts List===

			This list is for a 1 speaker, 1 accelerometer setup. Each PIC can theoretically handle 2 speakers.
	Items with * indicate setup for 1 speaker. Multiply by 6 for full configuration.

	<ul>		<ul>

2010-03-18T22:23:24Z

Parts List

← Older revision		Revision as of 17:23, 18 March 2010
Line 43:		Line 43:
	<li>Speaker Amp: [http://www.national.com/ds/LM/LM1875.pdf LM1875] 20W Audio Power Amplifier</li>		<li>Speaker Amp: [http://www.national.com/ds/LM/LM1875.pdf LM1875] 20W Audio Power Amplifier</li>
	<li> Accelerometer: [http://www.analog.com/en/mems/low-g-accelerometers/adxl325/products/product.html ADXL325] 3-AXIS ±5 G</li>		<li> Accelerometer: [http://www.analog.com/en/mems/low-g-accelerometers/adxl325/products/product.html ADXL325] 3-AXIS ±5 G</li>
			<li>Speakers: generic 6 ohm, 2" diameter (INSERT SPEAKER SPECs, link)</li>
	<li></li>
	<li></li>
	<li></li>
	<li></li>
	<li></li>
	</ul>		</ul>

2010-03-18T22:22:16Z

Parts List

← Older revision		Revision as of 17:22, 18 March 2010
Line 41:		Line 41:
	<li>Low-Pass Filter: 66K resistor, 0.01uF capacitor</li>		<li>Low-Pass Filter: 66K resistor, 0.01uF capacitor</li>
	<li>Unity Gain Buffer: [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND LM741] general purpose op-amp</li>		<li>Unity Gain Buffer: [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND LM741] general purpose op-amp</li>
			<li>Speaker Amp: [http://www.national.com/ds/LM/LM1875.pdf LM1875] 20W Audio Power Amplifier</li>
	<li></li>
			<li> Accelerometer: [http://www.analog.com/en/mems/low-g-accelerometers/adxl325/products/product.html ADXL325] 3-AXIS ±5 G</li>
	<li></li>		<li></li>
	<li></li>		<li></li>

2010-03-18T22:19:30Z

Circuit Design

← Older revision		Revision as of 17:19, 18 March 2010
Line 40:		Line 40:
	<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>		<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>
	<li>Low-Pass Filter: 66K resistor, 0.01uF capacitor</li>		<li>Low-Pass Filter: 66K resistor, 0.01uF capacitor</li>
	<li>Unity Gain Buffer: [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND\|LM741] general purpose op-amp</li>		<li>Unity Gain Buffer: [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND LM741] general purpose op-amp</li>
	<li></li>		<li></li>
	<li></li>		<li></li>

2010-03-18T22:18:34Z

Parts List

← Older revision		Revision as of 17:18, 18 March 2010
Line 40:		Line 40:
	<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>		<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>
	<li>Low-Pass Filter: 66K resistor, 0.01uF capacitor</li>		<li>Low-Pass Filter: 66K resistor, 0.01uF capacitor</li>
	<li>Unity Gain Buffer: [[http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND\|LM741]] general purpose op-amp</li>		<li>Unity Gain Buffer: [http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND\|LM741] general purpose op-amp</li>
	<li></li>		<li></li>
	<li></li>		<li></li>

2010-03-18T22:18:14Z

Parts List

← Older revision		Revision as of 17:18, 18 March 2010
Line 39:		Line 39:
	<ul>		<ul>
	<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>		<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>
			<li>Low-Pass Filter: 66K resistor, 0.01uF capacitor</li>
	<li></li>
			<li>Unity Gain Buffer: [[http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=LM741CNFS-ND\|LM741]] general purpose op-amp</li>
	<li></li>
	<li></li>		<li></li>
	<li></li>		<li></li>

2010-03-18T22:16:40Z

Circuit Design

← Older revision		Revision as of 17:16, 18 March 2010
Line 31:		Line 31:

	[[Image:Jd-cr-Full-schematic.jpg\|thumb\|Full schematic, showing PIC, LPF, Buffer, Amplifier, and Accelerometer]]		[[Image:Jd-cr-Full-schematic.jpg\|thumb\|Full schematic, showing PIC, LPF, Buffer, Amplifier, and Accelerometer]]
		⚫	The PIC32 controls the entire system. We will explain the circuit, following the path from PIC to speaker, for one speaker. Theoretically, if our project was extended, 6 speakers would be included, but we concentrated on a proof of concept with one speaker subsystem.
⚫	Parts List:

		⚫	===Parts List===

			Items with * indicate setup for 1 speaker. Multiply by 6 for full configuration.

	<ul>		<ul>
	<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>		<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>
Line 44:		Line 49:
	</ul>		</ul>

			===Build the Circuit===
⚫	The PIC32 controls the entire system. We will explain the circuit, following the path from PIC to speaker, for one speaker. Theoretically, if our project was extended, 6 speakers would be included, but we concentrated on a proof of concept with one speaker subsystem.

	<ol>		<ol>

2010-03-18T22:14:46Z

Circuit Design

← Older revision		Revision as of 17:14, 18 March 2010
Line 33:		Line 33:
	Parts List:		Parts List:
	<ul>		<ul>
	<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32 NU32 board]] configuration</li>		<li>PIC32MX460F512L, in [[Introduction_to_the_PIC32\|NU32 board]] configuration</li>
	<li></li>		<li></li>
	<li></li>		<li></li>