X-Git-Url: http://git.tremily.us/?p=calibcant.git;a=blobdiff_plain;f=README;h=036e38f066999eb5a4897d348fde4a2d899ddd6f;hp=bf5945b4c5e0037bdaeaba6a558bd392b1783f87;hb=4c71bb703879f78d291b2d88a2e71f0a10c5925f;hpb=21b604e13776d3b10e2471416cdbfe9f2a3deeb9

diff --git a/README b/README
index bf5945b..036e38f 100644
--- a/README
+++ b/README
@@ -1,3 +1,10 @@
+Scripts and python modules to calibrate AFM cantilevers via the
+"Thermal tune" method:
+  1/2 k_B T = 1/2 K x^2
+The analysis uses the expected power spectral density (PSD) of a
+damped simple harmonic oscillator to filter out noise from the
+measured PSD.
+
 == Dependencies ==
 
 linfit (depends in turn on scipy.stats.linregress)
@@ -17,6 +24,7 @@ Then fit slope with
  $ cat stderr
  not cutting
 
+
 ** vibs **
 
 Create a two-column ascii data file for fitting bumps with (for example)