Timeline for Ruggedizing a component for extended temperature
Current License: CC BY-SA 3.0
18 events
| when toggle format | what | by | license | comment | |
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| Apr 17, 2014 at 11:00 | comment | added | rfdave | At 10 units, you've got much less risk than building hundreds. You're still using parts out of spec, so you might want to consider doing a burn in of each one at +60C before you ship, just in case. Have a couple of spare modules, also. If this is a commercial venture, make sure that others in your organization know what's going on, as this is the kind of thing that makes management unhappy if they find out after things ship. | |
| Apr 17, 2014 at 5:24 | comment | added | Avin | @Dave the quantity is less.. maybe < 10. So I guess it should be ok, right? | |
| Apr 17, 2014 at 0:34 | comment | added | rfdave | So this module is specified for 0 to 40C. How many have you tested when you determined that it can operate to 60C without an issue? How many of these are you planning on building? If you're building one or two, you're probably OK. If you're planning on building hundreds, I'd be really worried about that. | |
| Apr 16, 2014 at 20:54 | answer | added | bitsmack | timeline score: 1 | |
| Feb 11, 2014 at 7:23 | comment | added | Avin | Is it possible to use simple resistor heating to achieve this? I have a 28V supply input from which I can presently spare upto 4A. Can I use chassis mount resistors to achieve the required temperature change? | |
| Feb 11, 2014 at 1:33 | history | tweeted | twitter.com/#!/StackElectronix/status/433051232656433153 | ||
| Feb 10, 2014 at 13:40 | comment | added | Spehro 'speff' Pefhany | @Avin I agree there is great doubt that can be made to work practically, as Peltier devices are notoriously inefficient. | |
| Feb 10, 2014 at 13:34 | comment | added | Avin | @SpehroPefhany Peltier was my choice #1. However, the power dissipation for this device is around 70-100W. And provided that my area to be heated is also more, I am doubtful about the effectiveness of the scheme. | |
| Feb 10, 2014 at 13:16 | comment | added | Spehro 'speff' Pefhany | Yes, a Peltier device can be used to regulate the temperature by heating or cooling, as required. It may be practical if the device does not dissipate too much power. Note that testing a single device over an extended temperature range is probably not sufficient to guarantee it will work reliably, let alone future similar devices. | |
| Feb 10, 2014 at 12:56 | history | edited | Avin | CC BY-SA 3.0 |
Updated query based on recent experiments
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| Dec 12, 2013 at 12:52 | comment | added | Avin | @lyndon The support personnel told that it can be ruggedized but they didn't have the technology to get it done or the knowhow to share it with me. | |
| Dec 12, 2013 at 12:49 | history | edited | Avin | CC BY-SA 3.0 |
added 28 characters in body
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| Dec 12, 2013 at 12:48 | comment | added | Avin | It is not a chip, it is a module of dimensions 220 x 250 x 60mm. The system size has not been fixed as the design for the ruggedization element is yet to be understood. Anyways, I'll add the dimensions also in the above question. I did come across some Peltier solutions while googling, but I believe they can work only for 1 purpose - either heating or cooling. Can a single solution work for both heating and cooling? | |
| Dec 12, 2013 at 12:45 | comment | added | lyndon | Well if the "support personnel" said it can be ruggedized then why don't you just ask them? | |
| Dec 12, 2013 at 12:10 | comment | added | PeterJ | Never had to do anything similar myself but I'm not aware of any pre-built units. It might be worth adding some more details on the overall size / environment etc though so someone might be able to suggest what peltier and other solutions might be suitable. If it's a single chip I believe some small peltier devices are available that might do the job combined with a fan and a control system. | |
| Dec 12, 2013 at 12:01 | comment | added | Avin | @PeterJ I was also thinking about doing the same thing. But should I be designing the heating/cooling systems myself or will I get any pre-built ones? | |
| Dec 12, 2013 at 11:46 | comment | added | PeterJ | Speculation but they might just mean you could design a heating / cooling system to keep it within those limits. | |
| Dec 12, 2013 at 11:41 | history | asked | Avin | CC BY-SA 3.0 |