About vibration measurement & ADIS16006

Thank you for posting this question.  What issue did you observe with the frequency response in the competing device?  Which device was it?

It looks like the ADIS16006 will meet your parametric needs but how do you plan to use the data?  We have more advanced devices, such as the ADIS16228 which provide three axes along with some advanced signal processing (frequency response calibration, windowing, FFT, spectral alarm banding), at the point of use. If you are interested in learning more about that type of function, you can check out this article or the product's datasheet (second link):

An Introduction to MEMS Vibration Monitoring

http://www.analog.com/media/en/technical-documentation/data-sheets/ADIS16228.pdf

Thank you very much for your reply and your article! My time zone is in the middle of the night, but I’ll read your article deeply and datasheet of ADIS16228 tommorrow morning.

We are trying to monitor the transformer by analysing the vibration of the oil tank, for example, we get the vibration datas of one second, send it to PC wirelessly, then analyse the frequency spectrum or something more by PC (not inside sensor),finally, estimate the transformer's running state.

I got a information that ADIS16006 was launched in 2006, does it mean for that the ADIS16006 had been replaced?

And Does ADXL350 fit for Industry application,especially considering the frequency responce?

Thank you again!

tming

There are a number of accelerometer products that have been released since the ADIS16006 was released, but I don't think that any of them meet all of your needs.  The ADX34x family noise and bandwidth would be a bit short.  The ADXL362 was a massive breakthrough in terms of power, but it is really short on bandwidth, with respect to your requirements. 

Your article gave me a overall understanding of Vibration monitoring by MEMS, thank you! And after knowing more about ADIS16228,we gave up it because its power consumption( 40mA at normal mode) can't meet our need.

I have serveal questions to ask for your help before making a decision:

Q1:What do you refer to the accelerometer products released after ADIS16006? ADIS1600x? or ADIS1622x? or x?

Q2:The ADXL series, such as ADXL345's output noise density is 290 µg/√Hz,while ADIS series, such as ADIS16006's is 200 µg/√Hz.Does it mean for that the ADIS's noise does't show much advantage over ADXL series.

Q3:From the selection table, 16003 and 16006 were categorized as accelerometers,while the 16228/9/3/7 were categorized as vibration sensors. Were them classified by their application field and ADIS16228/9/3/7 are more fit for vibration measuremnt than ADIS16006?

Q4:We have nearly decided to use ADIS16006, but we found that the data and application of ADIS16006 is really short, which let us hardly have the confidence to start trial, could you offer us some reference material  or links?

Thank you again!

tming

Starting with answer your questions.

Q1:What do you refer to the accelerometer products released after ADIS16006? ADIS1600x? or ADIS1622x? or x?

NevadaMark: I was mostly referring to the ADXL345 (1600Hz bandwidth, higher noise), ADXL362 (200Hz bandwidth), ADXL001 (higher noise, analog output)

.

Q2:The ADXL series, such as ADXL345's output noise density is 290 µg/√Hz,while ADIS series, such as ADIS16006's is 200 µg/√Hz.Does it mean for that the ADIS's noise does't show much advantage over ADXL series.

NevadaMark: That is probably a bit too general of a statement.  In your spec, you said that you needed 2kHz BW, which I don't believe that the ADXL345 supports; that is what lead to me excluding that option. If 1600Hz was sufficient for the bandwidth and 3200SPS was enough, I would probably start with the ADXL350.

Q3:From the selection table, 16003 and 16006 were categorized as accelerometers,while the 16228/9/3/7 were categorized as vibration sensors. Were them classified by their application field and ADIS16228/9/3/7 are more fit for vibration measuremnt than ADIS16006?

NevadaMark: The general classification is probably not as important as you understanding exactly what you want to measure, how you want to process the data and what behavior/attributes you need in that process.  You have already done that so I wouldn't worry too much about the accelerometer vs vibration classification.  

Q4:We have nearly decided to use ADIS16006, but we found that the data and application of ADIS16006 is really short, which let us hardly have the confidence to start trial, could you offer us some reference material  or links?

NevadaMark:I am not sure what you are saying here.  What is the issue with the ADIS16006?  What do you mean by "data and application being short?"

What is your power budget?

Hi,NevadaMark:

for A2:It is the best case if BW>=2kHz,but we may have to make a compromise, for example, 1.6kHz BW. Considering that the ADXL350 is much cheaper than ADIS16006, we are afriad that the performance of ADXL350 is not as good as ADIS16006.

for A4:I mean for that the application examples and AN of ADIS16006 are so few we can find from the Internet. May your commanpy have some appication example or AN, and so on?

We use battery for power supply,so our power budget is mA magnitude.ADIS16006‘ comsumption(1.5mA) is much less than ADIS16228(40mA).

Thanks for your patience!

tming

for A2:It is the best case if BW>=2kHz,but we may have to make a compromise, for example, 1.6kHz BW. Considering that the ADXL350 is much cheaper than ADIS16006, we are afriad that the performance of ADXL350 is not as good as ADIS16006.

NevadaMark: With the information you have provided, you might want to try both of them out, but I think that you will find the ADXL350 package will be more commonly used by newer products in the future, if you want to be able to leverage newer solutions in the future.  I can't comment on what those solutions might look like at this time, but I figured the package insight would be worth knowing on its own. 

for A4:I mean for that the application examples and AN of ADIS16006 are so few we can find from the Internet. May your commanpy have some appication example or AN, and so on?

NevadaMark: A lot of our customers prefer to not post what they are doing, so I would hesitate to assume that the web represents the user base.  What you are doing makes sense, but your success is also going to be influenced by how well you can use the sensors to track whatever vibration attribute you care about.

I hope that this helps. If our posts have earned this, our admins would greatly appreciate you closing this discussion by assigning the most appropriate post with Correct Answer. If we haven't earned that yet, we look forward to further clarification. No problem either way!  Thanks!

NevadaMark,

I have learned much from you, thanks for your warm heart,

Best Wishes to you!

tming

You are most welcome!  I look forward to hearing about how things progress and to any future discussions that you start in our Engineer Zone.

Good luck with your project!

NevadaMark