On Tuesday, January 21, 2014 12:29:51 PM UTC-5, Phil Hobbs wrote:   
   > On 01/21/2014 12:00 PM, haiticare2011@gmail.com wrote:   
   >   
      
   > There's a book by Mark Johnson, "Photodetection and Measurement" which   
   > has a lot of good stuff on that, explained in serious detail.  Johnson   
   > used to run the QA group of a large water utility in the UK, so there   
   > are a lot of good ideas for water quality measurements.   
   >   
   >   
   > Highly recommended if you're new to lock-in type measurements,   
   > especially the "TRY IT" sections, which are meant to build intuition and   
   > experience very quickly.   
   >   
   Thanks, I'll order a copy.   
      
   George H.   
   >   
   > Cheers   
   >   
   >   
   >   
   > Phil Hobbs   
   >   
   >   
   >   
   > --   
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   > Dr Philip C D Hobbs   
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