From dca97956543039aa610affe23f4af206802c98b5 Mon Sep 17 00:00:00 2001
From: Sam Calisch <sam.calisch@cba.mit.edu>
Date: Tue, 26 Sep 2017 09:14:05 -0400
Subject: [PATCH] Update README.md

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

diff --git a/README.md b/README.md
index 50506e8..ade6aea 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ It is based on a discrete electrostatics solver (shown below), and also document
 
 ## Magnetic
 
-<a href='http://web.cba.mit.edu/sam/kiri/doc/loadcell.html'>1 DOF Magnetic Load cell</a>
+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 href='http://web.cba.mit.edu/sam/kiri/doc/loadcell.html'>This page</a> documents experiments with a 1 DOF magnetic load cell, based on the Austrian microsystems AS5510 IC, which boasts 500nm resolution for $1.41 (Q: 100).
 
 <img src='prior/as5011-loadcell.jpg' width=40%>
 
-- 
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