That reminds me of a tester I got to see while I was working on a project for Motorola at one of their ALT (accelerated life test) labs. This was for testing durability of cell phones. The tester basically was a pendulum that was about three feet high. At the base, you placed the PUT (phone under test), and you pulled the pendulum up to a specified angle and let it go. It would swing down and whack the phone across the room into a target. Amazing what they'll handle! Another similar test was dropping a steel ball (maybe 3/4" diameter) onto the display of the phone. The idea was to see how high you could go before it shattered. One of my more "amusing" projects.
Daun -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thomas A. Frank Sent: Saturday, March 17, 2007 9:41 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Question for the cesium nuts. >> The test is called the "hammer blow" test. > > Why do I picture a large steel hammer on a swing setup with a DUT as > targeted > endpoint? Because that's pretty much how it's done :-) OK, the DUT is sitting on a big steel table and the hammer hits the table not the piece, but still...you would be amazed at how far the pieces fly sometimes. Tom Frank, KA2CDK _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts