## convert voltage to acceleration

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jchow
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Joined: Mon Apr 09, 2012 4:57 pm

### convert voltage to acceleration

hi ,

may i know how to convert voltage to acceleration ? i using picoscope 3000 series and accelerometer with sensitivity 9.9 mv/g . i really need help

aarne
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Joined: Sat Dec 04, 2010 11:34 am

### Re: convert voltage to acceleration

9.9mV = 1G
-9.9mV = -1G

99mV = 10G
99000000000mV = 10000000000G

jchow
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Joined: Mon Apr 09, 2012 4:57 pm

### Re: convert voltage to acceleration

if my output is 3.3 mv from the screen. then i just divide the sensitivity of accelerometer sensor to get acceleration ??

for example

g= 3.3 mv/ 9.9 mv/g = 0.3333 ??

if that correct ???

Martyn
Posts: 3771
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

### Re: convert voltage to acceleration

Yes
Martyn
Technical Support Manager

Martyn
Posts: 3771
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

### Re: convert voltage to acceleration

If you import the attached probe into the PicoScope software it will do this all for you.
Attachments
Acceleration.psprobe
Acceleration Probe
Martyn
Technical Support Manager

jchow
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Posts: 0
Joined: Mon Apr 09, 2012 4:57 pm

### Re: convert voltage to acceleration

hi
if i attached the probe inside..

how that tool detect my sensitivity of sensor ?

i use 3 channel with different sensitivity
?

jchow
Newbie
Posts: 0
Joined: Mon Apr 09, 2012 4:57 pm

### Re: convert voltage to acceleration

is it we picoscope will automatically detect the sensitivity of accelerometer once i attached that acceleration probe ?

Martyn
Posts: 3771
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

### Re: convert voltage to acceleration

The following may prove to be an interesting read for you although it is related to testing Pine not Steel but the principals should be the same
http://www.fwpa.com.au/sites/default/fi ... OE_MOR.pdf

It uses the following kit
• A Laptop or Desktop
B Data acquisition card (Pico Technology Type Picoscope 3224)
C Accelerometer (Brüel & Kjaer Type 4397)
D Impact hammer (Brüel & Kjaer Type 8206-2)
E Conditioner (Endevco Type 4416B) for accelerometer and impact hammer
F Low pass filter to avoid aliasing effect
G Screw for the accelerometer attachment (magnet system)
Martyn
Technical Support Manager

jchow
Newbie
Posts: 0
Joined: Mon Apr 09, 2012 4:57 pm

### Re: convert voltage to acceleration

hi martyn,

if i divide sensitivity of sensor by voltage AC RMS will get acceleration RMS ??

got any paper or journal to prove ? i really need that . thanks

jchow
Newbie
Posts: 0
Joined: Mon Apr 09, 2012 4:57 pm

### Re: convert voltage to acceleration

hi martyn ,

do u have any journal or technical paper to show whether need to consider accelerometer sensitivity by using acceleration probe u upload ?

Martyn
Posts: 3771
Joined: Fri Jun 10, 2011 8:15 am
Location: St. Neots

### Re: convert voltage to acceleration

Not sure why you need a paper for this.

An accelerometer will produce a voltage relative to it's acceleration. The manufacturer of the accelerometer will give details of this relationship. All the probe I have produced does is to display the actual acceleration rather than the voltage, it simply does the mathematical conversion for you.
Martyn
Technical Support Manager

kocoloco
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Joined: Tue Sep 11, 2018 8:56 am

### Re: convert voltage to acceleration

Hi,

I've been trying to load your psmaths into the Software, but it doesn't working. The screen after "Import" is still without the psmaths file. What went wrong ?

Thanks&Greets

Martyn