REGISTER | LOGIN
Home    Bloggers    Blogs    Article Archives    Messages    About Us   
Tw  |  Fb  |  In  |  Rss
Brad Albing

Designing With an Inductance to Digital Converter

Brad Albing
Page 1 / 3   >   >>
Brad Albing
Brad Albing
1/7/2014 10:49:36 AM
User Rank
Blogger
Re: inductance measure
@etnapowers - you certainly could use a conventional bridge technique (a Wheatstone bridge is the one you're thinking of). The TI part is probably more accurate than what you could build from discrete parts to implement the bridge. And it's far more convenient.

50%
50%
etnapowers
etnapowers
1/7/2014 4:04:56 AM
User Rank
Master
interesting application
This system looks like to work in a similar way to the MEMS, in both cases the mechanic stress in one direction is trasformed in a electrical pulse, it is a very interesting application

50%
50%
etnapowers
etnapowers
1/7/2014 3:58:55 AM
User Rank
Master
inductance measure
I wonder if the inductance variation may be measured with a wien bridge's tecnique.

50%
50%
SunitaT0
SunitaT0
10/29/2013 3:16:33 AM
User Rank
Master
Re : Designing With an Inductance to Digital Converter
The LDC1000 allows inductive sensing, by using springs and coils as inductive beams to deliver better reliability, better performance and greater suppleness than existing detecting solutions – at poorer system cost and power.

50%
50%
B_Albing
B_Albing
10/29/2013 12:24:15 AM
User Rank
Editor
Re: Re : Designing With an Inductance to Digital Converter
@yalanand - yes - I think some of the applications with springs look pretty interesting - like weigh-scales and vehicle suspensions.

50%
50%
yalanand
yalanand
10/27/2013 7:14:00 AM
User Rank
Master
Re : Designing With an Inductance to Digital Converter
Inductance-to-digital converter (LDC) allows inductive sensing – a magnet-free, contactless, sensing technique that could measure the position, composition or motion of a metal or conductive objective as well as detect the extension, compression or twist of a spring. 

50%
50%
B_Albing
B_Albing
10/21/2013 8:57:45 PM
User Rank
Editor
Re: why not try to make a guitar pickup with this thing
@PieterBKK - you'll want to operating with a suitably high resonant frequency (sensor freq.) and with a suitably short response time (settling time) on the digital filter (response time set to 010 or 192). I have concerns about interaction between the pickup coils - the excitation frequency of one may cause the adjacent one to "pull" towards it. Just my 2 cents worth....

50%
50%
PieterBKK
PieterBKK
10/21/2013 2:40:48 AM
User Rank
Newbie
why not try to make a guitar pickup with this thing
I started to design a guitar pick up

(actually two)

 

http://www.rockethub.com/projects/33782-revolutionairy-new-guitar-pickup-with-midi-out-and-analog-out

 

 

Pieter

50%
50%
B_Albing
B_Albing
10/15/2013 10:22:34 AM
User Rank
Editor
Re: Railductor
@RedDerek - I thought of that, but the scale is so much smaller that it wouldn't be a fair test. The parasitic capicitance and leakage resistance is so much lower on the scale models that it would produce results that would look much better than what you'd get at prototype scale.

50%
50%
RedDerek
RedDerek
10/14/2013 10:53:54 PM
User Rank
Master
Re: Railductor
@B_Albing - There are groups out there that run miniature rail roads. These could be another resource for testing. On the Electronics101 Yahoo group there are a few members.

50%
50%
Page 1 / 3   >   >>
More Blogs from Brad Albing
Controlling power to a 3-phase brushless DC motor requires care and finesse. Here's a design kit (eval board) that makes it easy.
Jobs and where they are is always something we wonder and worry about as engineers.
Researchers at imec are working on new fabrication methods to add germanium and tin layers to a silicon substrate to get a very high speed p-channel FET.
As an analog design engineer, you're used to designing sensor interface circuitry. But sometimes it's easier just to buy sensors as a complete assembly.
Highly integrated analog ICs are perfect for some applications and can be real money-savers. But sometimes, it works out better to pursue your design in a non-integrated manner.
flash poll
educational resources
 
follow Planet Analog on Twitter
Planet Analog Twitter Feed
like us on facebook
our partners
Planet Analog
About Us     Contact Us     Help     Register     Twitter     Facebook     RSS