Comments on: Low-Cost Tachometer http://www.solarheatengines.com/2008/02/12/low-cost-tachometer/ Simulate, analyze, design, build, and test solar-powered engines Sat, 04 Sep 2010 06:11:51 -0400 hourly 1 http://wordpress.org/?v=3.0 By: JF http://www.solarheatengines.com/2008/02/12/low-cost-tachometer/comment-page-1/#comment-134 JF Tue, 16 Jun 2009 15:52:15 +0000 http://www.solarheatengines.com/?p=21#comment-134 Just a idea for a Tachometer : http://www.powerballs.com/shop/product_info.php?pid=17 It's a speed meter for a gyroscope toy call " Powerball" and is able to calculate RPM up to 15 000. Is very accurate with low RPM too and just cost $16. I have a Powerball at home with a Digital Speed Meter like that and i think is working with a magnet like others tachometer. Just a idea for a Tachometer :

http://www.powerballs.com/shop/product_info.php?pid=17

It’s a speed meter for a gyroscope toy call ” Powerball” and is able to calculate RPM up to 15 000. Is very accurate with low RPM too and just cost $16. I have a Powerball at home with a Digital Speed Meter like that and i think is working with a magnet like others tachometer.

]]> By: John R http://www.solarheatengines.com/2008/02/12/low-cost-tachometer/comment-page-1/#comment-87 John R Sun, 20 Jul 2008 09:04:40 +0000 http://www.solarheatengines.com/?p=21#comment-87 This is absolutely brilliant, both in the American and British sense of the word. I have never thought of this and it is a great idea. BTW, this is a great website and I'm glad you put it up, I like your low cost solutions and testing methods, they are excellent. This is absolutely brilliant, both in the American and British sense of the word. I have never thought of this and it is a great idea. BTW, this is a great website and I’m glad you put it up, I like your low cost solutions and testing methods, they are excellent.

]]> By: Solar Heat Engines » Blog Archive » Torque and Power measurement of low-speed, low-power engine http://www.solarheatengines.com/2008/02/12/low-cost-tachometer/comment-page-1/#comment-14 Solar Heat Engines » Blog Archive » Torque and Power measurement of low-speed, low-power engine Fri, 04 Apr 2008 03:01:34 +0000 http://www.solarheatengines.com/?p=21#comment-14 [...] distance out on the torque arm I have the torque produced by the shaft. Measuring the RPM using the low-cost tachometer I can compute the power output of the engine. The equations [...] [...] distance out on the torque arm I have the torque produced by the shaft. Measuring the RPM using the low-cost tachometer I can compute the power output of the engine. The equations [...]

]]> By: Solar Heat Engines » Blog Archive » Tachometer Part 2 http://www.solarheatengines.com/2008/02/12/low-cost-tachometer/comment-page-1/#comment-6 Solar Heat Engines » Blog Archive » Tachometer Part 2 Wed, 19 Mar 2008 17:48:32 +0000 http://www.solarheatengines.com/?p=21#comment-6 [...] for $10. Although it uses the same programming values that I show in the table from my earlier Low-cost Tachometer article, it has some differences that I thought I should point [...] [...] for $10. Although it uses the same programming values that I show in the table from my earlier Low-cost Tachometer article, it has some differences that I thought I should point [...]

]]> By: bright engine http://www.solarheatengines.com/2008/02/12/low-cost-tachometer/comment-page-1/#comment-3 bright engine Wed, 13 Feb 2008 02:51:05 +0000 http://www.solarheatengines.com/?p=21#comment-3 Can you include an actual (representative) speedometer part number? Thanks. Can you include an actual (representative) speedometer part number? Thanks.

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