From 93b92096f414762fb0b2609da86c9a8c5c5b8394 Mon Sep 17 00:00:00 2001
From: Sam Calisch <sam.calisch@cba.mit.edu>
Date: Tue, 26 Sep 2017 09:25:12 -0400
Subject: [PATCH] Update README.md

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 README.md | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

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@@ -16,7 +16,7 @@ It is based on a discrete electrostatics solver (shown below), and also document
 
 ## Magnetic
 
-Another proximity measurement uses the magnetic field instead of the electric field.  Integrated circuits are available with extremely sensitive magnetostrictive, magnetorestive, and hall effect sensors.  Using differential pairs of these elements, very low-cost, non-contact rotary and linear encoders can be made. 
+Another proximity measurement uses the magnetic field instead of the electric field.  Integrated circuits are available with extremely sensitive magnetostrictive, magnetorestive, and hall effect sensors.  Using differential pairs of these elements, very low-cost, non-contact rotary and linear encoders can be made.  A great resource for designing such magnetic devices is the <a href='https://sensing.honeywell.com/hallbook.pdf'>Honeywell Hall Effect Handbook</a>.
 
 ### AS5510 1 DOF Loadcell
 
@@ -49,7 +49,6 @@ Finally, we can plot the relation between the two variables (force and hall read
 ### 6 DOF Loadcell
 
 
-<a href='https://sensing.honeywell.com/hallbook.pdf'>Honeywell Hall Effect Handbook</a>
 
 <a href='as5013-test'>as5013-test/</a> contains pcb source files for a board to evaluate 3d tracking using the AS5013 (nominally an 8-bit 2-axis device).  This IC contains an array of 5 hall effect elements for measuring $B_z$, sampled to 12-bits internally with these raw values available over I2C.  
 
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