Lateral-Effect Photodiode - Revision history

EricN: /* Position Sensing Devices */

2008-12-13T03:30:52Z

Position Sensing Devices

2008-12-13T03:03:49Z

Output

2008-12-13T03:03:36Z

Output

2008-12-13T03:03:15Z

Output

2008-12-13T03:02:35Z

Output

2008-12-13T03:00:42Z

Output

2008-12-13T03:00:09Z

Output

2008-12-13T02:55:42Z

Output

2008-12-13T02:55:20Z

Output

2008-12-13T02:54:32Z

Output

← Older revision		Revision as of 03:30, 13 December 2008
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	==Position Sensing Devices==		==Position Sensing Devices==
	[[Image:photoelectric_effect.gif\|right\|Photoelectric effect drives current in a position sensing device, a tetra-lateral device in this case]\|thumb\|350px]]		[[Image:photoelectric_effect.gif\|right\|Photoelectric effect drives current in a position sensing device, a tetra-lateral device sensing a single axis in this case]\|thumb\|350px]]

← Older revision		Revision as of 03:03, 13 December 2008
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	This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions. In the example diagram, the resulting X coordinate would be negative and the Y coordinate would be positive. Both calculations are scaled such that the range of position values for each axis are:		This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions. In the example diagram, the resulting X coordinate would be negative and the Y coordinate would be positive. Both calculations are scaled such that the range of position values for each axis are:


	-0.5 < X < 0.5		-0.5 < X < 0.5

@@ Line 45: / Line 45: @@
 This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions.  In the example diagram, the resulting X coordinate would be negative and the Y coordinate would be positive.  Both calculations are scaled such that the range of position values for each axis are:
-<math> -0.5 \< X \< 0.5
+-0.5 < X < 0.5
--0.5 \< Y \< 0.5 </math>
+-0.5 < Y < 0.5

@@ Line 45: / Line 45: @@
 This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions.  In the example diagram, the resulting X coordinate would be negative and the Y coordinate would be positive.  Both calculations are scaled such that the range of position values for each axis are:
-<math> -0.5 < X < 0.5
+<math> -0.5 \< X \< 0.5
- -0.5 < Y < 0.5 </math>
+-0.5 \< Y \< 0.5 </math>

@@ Line 45: / Line 45: @@
 This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions.  In the example diagram, the resulting X coordinate would be negative and the Y coordinate would be positive.  Both calculations are scaled such that the range of position values for each axis are:
- <math> -0.5 < X < 0.5
+<math> -0.5 < X < 0.5
  -0.5 < Y < 0.5 </math>

@@ Line 36: / Line 36: @@
-<math> X = \frac {i_{x2} - i_{x1}}{i_{x2} + i_{x1}} </math>
+<math> X = \frac {i_{out2} - i_{out1}}{i_{out2} + i_{out1}} </math>
-<math> Y = \frac {i_{y2} - i_{y1}}{i_{y2} + i_{y1}} </math>
+<math> Y = \frac {i_{in2} - i_{in1}}{i_{in2} + i_{in1}} </math>
-This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions.
+This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions.  In the example diagram, the resulting X coordinate would be negative and the Y coordinate would be positive.  Both calculations are scaled such that the range of position values for each axis is <math> -0.5 < X < 0.5 </math> and <math> -0.5 < Y < 0.5 </math>

@@ Line 36: / Line 36: @@
+<math> X = \frac {i_{x2} - i_{x1}}{i_{x2} + i_{x1}} </math> \n
-<math>
-X = \frac {i_{x2} - i_{x1}}{i_{x2} + i_{x1}} \n
+<math> Y = \frac {i_{y2} - i_{y1}}{i_{y2} + i_{y1}} </math> \n
-Y = \frac {i_{y2} - i_{y1}}{i_{y2} + i_{y1}} \n
-</math>
 This makes the center of each axis zero and makes the right side and the upper side positive in their respective directions.

@@ Line 37: / Line 37: @@
 <math>
-\begin{align}
-X & = \frac {i_{x2} - i_{x1}}{i_{x2} + i_{x1}} \\
-Y & = \frac {i_{y2} - i_{y1}}{i_{y2} + i_{y1}} \\
+X = \frac {i_{x2} - i_{x1}}{i_{x2} + i_{x1}} \n
-\end{align}
+Y = \frac {i_{y2} - i_{y1}}{i_{y2} + i_{y1}} \n
 </math>