How do pyrotechnics in spacecraft subsystems work?

Could someone please provide more information on how pyrotechnics in spacecraft subsystems work?

"Pyrotechnics are electrically initiated explosive devices used to operate valves, ignite solid rocket motors, and explode bolts to separate from or jettison hardware, or to deploy appendages. They obtain their electrical power from a bank of capacitors which are charged from the main bus several minutes prior to the planned detonation of a device."

Source:

http://www.braeunig.us/space/systems.htm

Could someone please provide more in-depth information on pyrotechnics in spacecrafts?

 

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What would you consider to be more in-depth?
On which of those items?

 

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I need more technical information on pyrotechnics and especially spacecraft pyrotechnics.

 

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http://www.google.co.uk/search?clie...plosive pyrotechnics&meta=&btnG=Google Search

http://www.google.co.uk/search?hl=e...0g&q=actuating pyrotechnics&btnG=Search&meta=

They're largely application-dependent: which specific uses?
Loading? Timing? Materials of objects that they'll be used to move/ break? Etc.

 

What do you mean by loading and timing? I don't know enough about pyrotechnics to know which of these uses I need.

 

Well since they're designed to move something (in some cases, not, of course when used as separation devices) then you have to know how heavy the item to be be moved is: the load. And how quickly is it needed to be moved? How far? What other loads will be imposed (for example when the main load is being moved are there any other forces likely to be acting on it, especially in other directions?), etc etc.
Like I said, it's application-specific.

 

Then maybe as seperation devices since on spacecrafts they are used as explode bolts to separate from or jettison hardware, or to deploy appendages.

 

Well, again, they're application-specific. (In fact they're used on the Russian Ka-50 helicopter to release the rotor blades before the pilot ejects).
Here's a good start.
http://en.wikipedia.org/wiki/Pyrotechnic_fastener
http://www.fas.org/spp/guide/china/launch/lm2c/2C_Chapter5.htm

 

In this link they mention a component called a dispenser. What is the dispenser?

 

Apart from the fact that it's actually illustrated in the article (Figure 5.1) have you ever heard of Google?
http://adsabs.harvard.edu/full/2001ESASP.468..325V for one example...

 

Thanks but the link you provided as an example doesn't work.