Interesting sensor page

Post by **efahl** » Tue Sep 27, 2005 8:15 am

Kind of expensive, but after all it's aero stuff. The information about sensor latency is interesting, though.

http://www.jpitech.com/probes.htm

EDIT: Direct page link no longer works but the site at http://www.jpitech.com is still valid.

Bernard Fife · Post by **Bernard Fife** » Fri Sep 30, 2005 6:22 pm

Interesting sensor page

http://www.jpitech.com/probes.htm

Eric,

Very nice resource! I'll sticky this thread for reference. The aircraft parts are expensive compared to automotive parts, but still cheaper than real racing stuff :shock:

Lance.

Post by **efahl** » Sat Oct 01, 2005 6:41 am

Lance,

Every now and then I'll stumble upon a site like that and bookmark it (usually I post them here, too). Here's another one I found years ago, I think I posted it on the old yahoo list, but it has been long enough that it merits re-posting. I'd encourage people to post any similar finds here, even if you can't get the parts or they are too expensive, it's still interesting to see what's in the catalogs.

Make sure to check out the spark plug gasket pressure sensor on this link:

http://www.ngkntk.co.jp/english/product ... senso.html

Eric

jharvey · Post by **jharvey** » Sun Oct 02, 2005 4:35 am

I've actually seen one of these spark plug pressure sensors. The product it was attached to was an electrical system for small engines like chain saws.

I would have to guess that it measures capacitance changes to determine TDC then it sparks accordingly. So folks could probably solder a wire onto the existing spark plug gasket and get the same signal. I never saw it run though. Just saw the product. I wonder if it works.

Mk1rocco · Post by **Mk1rocco** » Sun Oct 02, 2005 5:24 am

My guess would be it's a piezo-electric device. In any event, it's an interesting piece of kit, it would nice nice to have some technical info.

Post by **efahl** » Wed Oct 12, 2005 4:43 pm

Anyone know the price on one of these jewels? Probably makes the old Bosch FD5POR at only $18/each pale in comparison.

http://www.intertechnology.com/Kistler/ ... _6117B.pdf

ami8break · Post by **ami8break** » Sun Nov 06, 2005 4:36 pm

Hello cylinder pressure guys,

some time ago I found really promising pressure sensors at http://www.optrand.com . I also read a paper (see below) which calls them 'low cost sensors'. The reference sensor was a Kistler type.

It must be a different world, a salesman I asked for prices sent this:
[...]
We can guarantee 200 million cycles in a head mounted package such as our
M5 or 6125 style sensor. Please see attached quote. Pricing on these sensors is (for 1-20 units): AutoPSI-S (standard) $785.00 ea, AutoPSI-TC (Temperature compensated) $945.00 ea.
[...]

Ok, let's continue ion sensing project....

@Eric:
AFAIK Bosch FD5POR is just for firing plugs, haven't known that they can measure presseure - or do I missunderstanding your posting?

Not to be too off topic:
http://www.bosch-motorsport.de/en/aktuatoren/index.shtm
http://www.bosch-motorsport.de/en/sensoren/index.shtm at least the temperature table is helpful for new *.inc files.

Â»Horst

PS @ paper:
Conception and test of a cylinder pressure based engine management for passenger car diesel engines
http://diglib.uni-magdeburg.de/Disserta ... eschke.htm You can download as pdf (3.4MB), abstract at this site is in English, thesis itself German only.

Post by **efahl** » Sun Nov 06, 2005 7:19 pm

ami8break wrote:AFAIK Bosch FD5POR is just for firing plugs, haven't known that they can measure presseure - or do I missunderstanding your posting?

Horst,

I was making a lame joke about the expensive Porsche spark plugs being cheaper than the pressure sensors.

Nice links...

Eric

89tona · Post by **89tona** » Tue Jan 03, 2006 6:31 pm

efahl wrote:Anyone know the price on one of these jewels? Probably makes the old Bosch FD5POR at only $18/each pale in comparison.

http://www.intertechnology.com/Kistler/ ... _6117B.pdf

i use those exact sensors for work to measeure cyclinder press.

they retail for 1500.00... thats what our order sheet says anyway...

Derrick

bubble · Post by **bubble** » Thu Mar 02, 2006 3:17 pm

this might have some affordable application if ford get them out in quantity.

http://www.sensorland.com/AppPage013.html

A spark plug with a built in pressure transducer by Ford