Title: Epoxy with ferrite powder Subtitle: Does anyone make such thing? Colleagues, I need to build a very small variable reluctance sensor, and I'm ...
Since nobody else has responded, I'll give it a shot. Take a pot core, or other ferrite material of the correct permeability. Grind them up into a very fine...
Dave, Thanks for the recipe! Meanwhile I've fund two interesting materials. They are both designed primarily as absorbers, but at low frequencies the losses...
I have used a nano-particle nickel dispersion directly for 2D magnetic patrterns and small or nano-size nickel mixed with polyimide to produce more 3D type...
Hi all, I have to take measurement between -190C to +150C, however,there is no proper sensors for this interval. I tried to use T-type thermocouple, but output...
Hello Marcus, Yes, your technique with Nickel ferromagnetic is of interest. I would appreciate if you could post more information about it. Nickel should...
Thanks Nick, Let me tell the problem, To measure small voltages, i used LTC2418 (product of Linear company) 24 bit sigme delta ADC. It has SPI interface, and...
Most pt100 s have long metal rod. I have to measure very small system ( a glass about 0.5mm thick and 3cmx5cm), the temperature difference between ends. So it...
... is very ... uV. it causes ... How do you maintain the same temperature between the cold junction (aka parasitic thermocouple, aka ice point) and a...
Nick, In fact, I had the most success with a cobalt nanoparticle dispersion from Strem Chemical (http://www.strem.com/code/index.ghc) which I was depositing...
You can get one the size of a surface mount resister if you can use a -50 to 500 deg. C range. In order to get down to the -190 deg C, you need a coil style...
Hi group, I am interested in interfacing wheatstone bridge type pressure sensors, specifically : 1. SmartTec SPD015G 2. SX01DD4 Both are wheatstone bridge type...
Hi group, I would also like to build a ranging deivce based on the 40Khz peizo electric transducers. I had a look at EPE mag's/ John Becker's designs and they...
When I did something similar for college 20 something years ago I found I had to Transmit, Quench, then Receive. For several cycles I quenched the ducer with...
Hi again, Sorry for late reply, i have my final exams, and they are finished, but project not :S About errors, as you said Nick, its not easy to keep them in...
... connected TC s directly connectors, (TC wires) and Thermocouples are welded by me :) must be miswelded.I hadnt got thermocouple experience and now i have...
Hi, We sell a flexion sensor that may be of use to you. It's the BendShort sensor, see http://icubex.com/catalog/product_info.php/cPath/24/products_id/54...
Does anyone know how to measure the capacitance between a probe and a piece of metal that is not connected to the measuring circuit? The probe has an area of...
Just a couple of coments: 1. You might find this document helpful http://www.sea.siemens.com/step/pdfs/snrs_3.pdf 2. It's conceivable that the sensr that you...
http://www.ifmefector.com/ifmus/web/pinfo1_10_30_40_10.htm http://www.wiringmanual.com/command025.html The capacitance measurement is between two points on the...
Hey people, I am fairly new to pressure sensors. I am working in a medical enviroment where compensated, amplified, and gauge readings are used. The project...
Thanks, I really appreciate your response. -Allen ... the ... the ... the ... strain ... deflection ... are ... biasing ... with a ... best ... I ... and ... ...
As the subject states, are there any huge significances in using an amplified vs an unamplified product? In my case, I am trying to measure the air pressure...
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