Accelerometer DeltaTron 4507 B 004 with MyDaQ ,it work's ?

[Hamid.charf1]

Hello NI community,

I'm new with you , and i'm still beginner with NI tools & équipement ,so know i'm i have an DeltaTron 4507 B 004 accelerometer and a MyDaQ card ,i made my filter and amplifier then I plugged directly to Waveform Chart , I still have parasites and even when I move my accelerometer I do not get any voltage variation.

Best regards for you all.

[Henrik_Volkers]

' Digital IO'  board for analog IO question ?

The sensor you have need a constant current source supply and a high pass signal decoupling. I think the MyDAQ will not provide that type of signal contidioner.

So you need a signal conditioner for Deltatron/ICP/CCLD senors (or DIY) ...

[Hamid.charf1]

Thanks a lot for this answer,

YES sorry I'm talking about analog input ,about an external currant source ,so you thing i can make it work with this source...

[Henrik_Volkers]

You need current source of 4mA with a max voltage of 18V - to 25V 

--  say 3 9V standard batteries with a blue (power indicator) LED   (drop the 27V by ~3V) in series with a JFET (SMD version of BF245C) and a ~250 Ohm resistor building a constant current source (CC diode) ..

all this in series with your sensor 

A 2000µF decoupling capacitor with 1Meg Ohm to GND  is the input for your MyDAQ.

https://en.wikipedia.org/wiki/Integrated_Electronics_Piezo-Electric

NEVER connect a voltage source without current limit (20mA max) to the sensor! It usually will be fried.

Due to the hermetic housing the magic white smoke still stay in the housing, but has left the eletronic parts 😉

EDIT:

bf545 is the SMD version ..