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once again, great job sir randy. much appreciated for the lesson you have shared on that day 2 class lesson...thanks once again for giving another kind of lesson comprehensive...

thanks to digikey and design news for another continuing education...thanks to all...

i am now in slide 18 of the day 2 class...great...

i am now on slide 12...

i am now in slide 2 of this lesson...

i am now downloading the presentation slides for this lesson and i am now about to begin with sir randy for his lecture today's day 2 class...

good evening sir randy, i am back for this class session for day 2 lesson...

Very informative lecture (regardless of audio interruptions)

Iron

Very bad audio quality...

Iron

Great to have access to the recorded sessions!

Iron

Missed the live lecture

Iron

Taking the class offline

Iron

Randy - thanks I look forward to the next session

Iron

Glad to have the archives here.  Too bad about the audio, but these slides are fairly self explanatory with good reference information and links.  Some good posts in the blog area too.

Thanks Randy too bad about the audio but

hopefully tommarow will go off without a hitch

yes reduced noise is an issue in my application

Sorry, I meant 'capacitive sensing'. Thanks for the lecture Randy.

Iron

The only touch sensing I generally do is touch.

Iron

That is going to do it for today. Until tomorrrow...

Blogger

Thank you Randy and Charles

Another FYI

Here is direct link to touch sensing products and suppliers for E-field, touch sensors:

 

http://www.digikey.com/product-search/en/sensors-transducers/capacitive-touch-proximity-sensor-ics/1967373

 

Blogger

yipes, a lot of options on that digikey link

Iron

Randy:

Thanks -- now I have no excuse -- the cap sensors come out of the box.

Iron

Just my grandaughters paly toys... XBox etc. ;-)

Iron

FYI - here is direct link to Digi-ey's proximity info:

 

http://www.digikey.com/product-search/en/sensors-transducers/proximity/1966557

 

Blogger

tradeoffs in range, power consumption, temp, linearity, etc?

Iron

@DaveWR yea that's it, thanks for the links. anybody played with it?

Iron

A google search on Efield or E-Field turns up a lot of material.

Iron

And an article here:

http://www.edn.com/electronics-products/electronic-product-reviews/other/4401197/Microchip-elevates-HMI-design-with-world-s-first-e-field-based-3D-gesture-recognition-chip

fwiw

Iron

does "inductive" sensing mean the same thing as "e-field" sensing? can you comment on the pros/cons of e-field sensing?

The e is for electric field. Inductive sensing uses a magnetic field. As the one slide noted, the inductive sensor needs a metallic target, the capacitive or efield sensor does not require a metallic or magnetic target

Blogger

E-Field - like the microchip stuff???

http://ww1.microchip.com/downloads/en/DeviceDoc/41660a.pdf

Interesting PDF

Iron

@JSP thanks, any white papers that you're aware of?

Iron

Thanks.  Audio cut out a lot, but I'll listen to the archive.

Iron

Just remebered where to find this...

http://www.digikey.com/us/en/techzone/sensors/resources/articles/intelligent-adaptable-smart-sensors.html

Very useful as Randy says...

Iron

Probably a bad cable on your mike

Iron

@apdobaj - I think "e-field" is more about RF/electrostatic sensing rather than inductive/electromagnetic. More like RF absorbative/de-tuning.

Iron

I will have to try later when its arcived.

We've got Randy! Everything's comin' up Millhouse.

Blogger

@DaveWR  Thank you.   :)

Sorry for the technical difficulties.

Blogger

Don't go away folks.

 

Blogger

@Joe: No just the finger touch stuff.

Iron

Thank you Chuck and Randy.

Iron

Randy and Chuck, Thank you for the session.

Iron

I'm having trouble listening to the audio; keeps stopping.

 

 

Thanks to everyone for sticking with us.

Blogger

Chuck somebody asked yesterday about downloading audio.  Is this possible?

Iron

does "inductive" sensing mean the same thing as "e-field" sensing? can you comment on the pros/cons of e-field sensing?

Iron

Thank you today's lecture. Sorry that we have audio problems, the slides provide good information. Again thank you for today's lecture Randy

Iron

thank you, nice apointment on Microchip kit, will try it

Iron

@DaveWR, do any of your sensors measure 360 degree rotation?

Thank you Chuck & Randy

Iron

Thanks Randy very informative.

Iron

Thanks again! Very helpful.

Iron

Thanks for hanging with us Chuck

Iron

A bunch of Capacitance style sensors on my desk -- will soon see how they work. :-)

Iron

Thanks Randy & Chuck (for filling in especially).

Iron

sorry fpr the technical difficulties

Blogger

I hope it's good archival. Later

Iron

Randy fell in the bit bucket, help him out.

Iron

I would look at available packages first but can do if needed but if cost, availability is good, whay reinvent the wheel.  Also helps speed time to market.

Iron

Considering signal conditioning inside sensor

Would prefer conditioning included if it is reliable enough.

Iron

depends on the conditions - application/cost/complexity

Iron

photoelectric do not dust and smoke imune, can be easily overloaded by flashing light, so have to check environment of implementation when choose kind of sensor

Iron

w/o signal conditioning is just fine

 

Iron

Depends on the project and client budget.

Iron

Signal conditioning included

Iron

I would rather add conditioning

Iron

Nice to have signal conditioning built in, but it would depend on our application.  

 

Iron

Conditioning built in... the more work done for me the better -- most iof the time.

Iron

I would consider a sensor without signal conditioning if I can easily add conditioning myself in software (or hardware)

Iron

signal conditioning included is a definite plus

Iron

Depends on the cost factor for the final target product.

Iron

I would like the option

Iron

hall effecr, strain, inductance core sensor, optical.

Iron

Resistive, proximity, magnetic

I've uses - Prox, inductive and magnetic (Hall Sensors).

Iron

Currently using resistive touch.

Iron

optical sensing, for object detection in close proximity

Iron

mechanical (physical switch) is another alternative

Iron

for touch sensors we've considered resistive touch

Iron

Even a lowly limit switch can do... mag sensors etc.

Iron

No plans for cap snesing now looking for info have used for sound detection and proximity.

noise and timing: depends on application noise can usually be cleaned up with processing to acceptable levels.

Iron

noise is the main issue with capacitive sensors

Iron

Noise has typically been more an issue than latency for me.

Iron

Some noise filtering techniques can be fast enough.

Iron

reduced measurement time is all ways needed for me

Iron

noise is always a problem for every application

Iron

Noticable latency (probably over 100ms or so) would not be very acceptable

Iron

Noise and environmental conditions (temperature) primary concerns.

Iron

measurement time can be critical

Iron

Randy's audio is good now.

Iron

try hitting F5 reload page

Iron

audio is good for randy now

Iron

audio is now perfect again

Iron

audio seems better now

Iron

Randy now good audio.

Iron

THe audio is not so clearly for me.

 

Iron

The audio of Randy is not good.

 

Iron

it is impossible to follow audio...

Iron

Non-contact measurement through a dielectric - liquid level sensing etc.

Iron

touch and liquid level sensing through a tank

Iron

audio is only bad for Randy, alot of bits are dropping.

Moderator is okay.

Iron

Looking at capacitive sensing of touch, used it for pressure in the past.

Iron

Q = charge (actually)

Iron

No current plans to use.  Just learning more about them.

Iron

Chuck your audio is good

Iron

touch sensors, detection of object presense

Iron

using capacitive sensing for user input.

Iron

touch sensing, pressure

Iron

Chuck audio perfect.

Iron

Folks, hang in, hoping audio will come back in

Iron

your voice is losing capacity :))

Iron

Audio is intermittent

Iron

Audio quality is bad.

Iron

Here we go, audio is up!

 

Iron

Hello, from the fridgid north east in upstate new york.  Where's the global warming?

Iron

Greetings from Toronto.

Iron

Greetings from Portland, OR

Iron

Hello again from Cedar Park, TX

Iron

Hello from Wichita, KS

Iron

brrrr from Newmarket , Ontario

 

Iron

Guten Tag from Austin, TX

Iron

Freezing in Chicago

Iron

Good Morning from SLC. It is only a chilly 12F, some weather man claims it will hit 34F today. I have my doubts. It has only been above Freezing for 4 days since Christmas.  The normal avg hi is 37F.

Iron

howdy from Philly!

 

Iron

Greetings from chilly Chicago!

Iron

Hello from sunny cold and miserable SE Lake Simcoe Ontario Canada -- 12C degrees -- at least it warmed up. Brrrhhhh!

About those jobs in Arizona...

And if I was in the USA maybe I could get a T-Shirt too!

Iron

COLD in Minneapolis today!  (-7 degF)

Iron

Good morning everyone.

 

Iron

Good morning everyone. I am in Vancouver Canada. It kept the heavy foggy day already 5 days!

Iron

Good Morning everyone

Iron

Good morning from Scottsdale,AZ

Iron

Good morning all.

I really love the Design News T-shirt!  And it's T-shirt weather here in CA.  82 degrees expected today.

Iron

Good Morning  it's -17°C near Detroit

Iron

Good morning from Buenos Aires, today we´ll have more than 30 degrees C

Iron

Good morning from Chicago, where it's -1F degrees.

Blogger

Good morning everyone

Iron

Good morning from Milwaukee!

Iron

Slides downloaded; thanks for the overview table on capacitive sensing.

Good Morning from Mobile, AL



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