Products > Test Equipment
Battery Simulator / Energy Usage Data Logger/Monitor
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MotoDan:
Hello all,

I am looking for a piece of test equipment that is used to determine the amount of power consumption for battery-powered iOT and embedded devices. The device basically replaces the battery of the UUT and essentially makes very fast current measurements and builds a power consumption profile which can be used to determine a devices expected battery life.

I think most of us just do the best we can at estimating our product's projected battery life based on what we have for power usage calculations. A device like I am looking for should provide a very accurate battery life prediction based on actual energy profiles (sleep, active, xmit, rcv, etc.) over a certain sample period.

There seems to be a few different products on the market. Here's a link for several related products:

https://pallavaggarwal.in/dc-current-analyzer-for-embedded-iot-product-development/

I have the Current Ranger as well as Dave's uCurrent, but neither are really very useful for integrating the power usage over time. The Joulescope looks to be the closest to what I am looking for.

Does anyone have any experience with this type of logger/monitor?

TIA
Smokey:
Some battery simulators:
Keithley 2300 Series = https://www.tek.com/en/products/keithley/dc-power-supplies/2300-series
Keithley Series 2281S = https://www.tek.com/en/products/keithley/dc-power-supplies/2281s-series
Keysight 66321B = https://www.keysight.com/us/en/product/66321B/mobile-comm-dc-source-battery-emulation.html
Xandinator:
Not to forget:
R&S NGM200 = https://www.rohde-schwarz.com/us/products/test-and-measurement/dc-power-supplies/rs-ngm200-power-supply-series_63493-652229.html
https://goughlui.com/2019/08/20/launch-day-review-rohde-schwarz-ngm202-power-supply-overview/ has made some nice, extensive reviews.
With fastlog you can almost gaze at some µCs processing different instructions...
pdenisowski:

--- Quote from: Xandinator on July 30, 2022, 11:39:36 pm ---Not to forget: R&S NGM200

With fastlog you can almost gaze at some µCs processing different instructions...

--- End quote ---

Yes, the FastLog feature on the NGM can log up to 500,000 samples per second.  The NGM also has a very good battery simulator mode, with user-definable battery models, and it can act as both a source and sink.

I made a video that provides a brief introduction to these (and many other) NGM features:



FastLog and battery simulation are from 13:23 to 18:00.
Steve77:
Paul,

Sorry to comment on such an old thread, however, that was one fantastic presentation.  One of the best I have ever seen on a piece of test equipment.  I think you just altered my budget for my battery operated project. 
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