Thanks for the reply...Heres some counters that make my confusion greater.
Imagine a single coil of wire...with a magnet placed exactly in the center of the coil..If the magnet is stationary, nothing happens, we all agree there...
What happens If I move the magnet in either direction? By my...
You want either a ZENER Barrier OR a Galvanic Isolaator (sometimes called a repeater power supply) and possibly a Surge Arrestor.
Buy these and you are protected.
The Galvanic Isolator is
Part # MTL5041
from
www.MTL-INST.com
Basically you could have a dead short in you primary (hararzous)...
The follwing are gut opinions. Not based on any experience or professional ability. Correctness is neither implied nor should be expected. So read at your own peril.
Gyro drift is a function of frictional losses in the gyro mechanism, time, temperature and ambient vibration levels and probably...
Have a thought question I am having problems with.
If I have a coil of wire...say something simple wound around a paper towel roll or something. And I move a permanent magnet inside it. Completely inside it.
If the magnet is a lot shorter than the length of the coil of wire, any movement of...
Based on
your price 5$ total (this is always the hard one)
Your range -90 to 90 Degrees
assuming you want Inclination and NOT Pitch and Roll
assuming that you have small quantities ~50 units
Assuming that you need about a degree in resolution
Assuming you want better that 1 degree stability...
Wondering what if any work has been done in building practical axially moving magnet power generators with real power ouputs.
I have an application where I have a lots of random axial vibration available (think of a giant hammerdrill) and I wanted to scavenge power out of the...
Was wondering if anyone knew a good solvent to remove the silkscreen on top of IC's. I have a product with 7 small PC boards but need to remove the Identifiers from certain IC's (SOIC, TQFP and a couple of LCC's) to deter certain types of individuals....
Obviously, would be nice if the solvent...
Some limited (and rather verbose) shared knowledge...
1) ideally your signal is sampled much faster than the frequency content of the data you are interested in. This is often but not always true.
2) If you did not use an AAF before you digitized AND you have high frequency content...then you...
for cbarn24050 : If I connect the shield to Earth on both sides do I not just create a 500 ft antenna?
for betkro : Analog 4-20 ma Loop....There is not digital data here.. how would RS485 apply?
seymours2571 : So you are saying that the isolated section of pipe attached to the transducer...
I build oil field tools...Specifically Measurement While Drilling..
Sounds boring right? The stuff I build (and I do mean I in the singular, Im and THE Engineer in the company) has to work at 20000 psi pressures, at 350F in a hole in the ground with nasty fluids going by at 30 to 50 ft per...
I have an application where I have a 4-20 mA transducer at the end of a 250 ft long cable. Plus, this entire setup up is in a nasty environment electrically (lots of RF and generator noise, think oil rig with gigantic generators, motors and nasty power).
I am using a 4 conductor (2 twisted...
I have an application where I have a 4-20 mA transducer at the end of a 250 ft long cable. Plus, this entire setup up is in a nasty environment electrically (lots of RF and generator noise, think oil rig with gigantic generators, motors and nasty power).
I am using a 4 conductor (2 twisted...
I use Logical Devices ChipMaster 5000 on all my 1051,2051 or 4051 projects. I think the older versions (2000 and 3000) should work just fine.
I think they are about 700$ a pop new but I think they sell refurbed units for a lot less...
MG
I would watch this one carefully...
Integration is a smoothing process in the frequency domain so high frequency effects that you might see in the accelerometer data will not hurt you too much.The low frequency data adds a lot to the integration process...So good signal levels and linear...
Remember that an FFT had Amplitude AND phase!!
If you modify the Amplitude of the FFT to remove the noise peaks and ignore the phase data..then invert the FFT, your data integrity goes to crap.
Remember that Addition in the time domain is multiplication in the frequency domain. The opposite...
Cannot find 702A11 on Endevco's site...
Also, what type of accclerometer is it? Is a PZ, a PR or is it VC?
If You have a Piezo electric accelerometer, then you need a constant current source to excite the accel and then you need a charge amplifier and then some gain to get it up to the leves...
I personally prefer Embedded CE myself...Havent worked with Embedded XP.
There a lot of companies that make very good embedded CE boards..I have become quite fond of
www.rlc.com
They have quite a few options on inputs with add on GPIB boards, RS232, A.D, digital inputs DAC and the built in...
