editor's blog
Subscribe Now

New Sensor Parameter Standard

Early this year we took a look at MEMS standards (or the need therefor), and one of the active efforts involved unifying sensor parameters and data sheets so that users could compare and combine different sensors from different companies – a challenging task at present.

Well, that effort has now yielded some results. The “Sensor Performance Parameter Definitions” document has been released under the auspices of the MEMS Industry Group (MIG). The effort itself was led by Intel and Qualcomm, with input from a number of different sensor players.

While many such standards documents start with a limited scope and just can’t stop, a quick look at the table of contents suggests that hasn’t happened here. The bulk of the document is simply a set of definitions for parameters for different sensors. It is augmented by helpful lists of terms and acronyms, symbols and equations, and measurement conversions.

The sensors covered by the document are:

  • Accelerometers
  • Magnetometers
  • Gyroscopes
  • Pressure Sensors
  • Humidity Sensors
  • Temperature Sensors
  • Ambient Light Sensors
  • Proximity Sensors

This seems to cover all of the Windows HID-required sensors (since inclinometers and orientation sensors are typically fused versions of the above) except for GPS.

Each sensor type has its own parameters. For example, the following parameters are defined for accelerometers:

  • Full Scale Range
  • Digital Bit Depth
  • Zero-g Offset
  • Zero-g Offset Temperature Coefficient
  • Sensitivity
  • Sensitivity Temperature Coefficient
  • Noise
  • Current Consumption
  • Output Data Rate (ODR)
  • Filter -3dB Cutoff
  • Internal Oscillator Tolerance
  • Cross-Axis Sensitivity
  • Integral Non-Linearity
  • Transition Time
  • Data Ready Delay

For each parameter, the following information is provided:

  • Any aliases or other names for the parameter
  • A definition
  •  Conditions under which the parameter is specified (typically more than one)
  • Distribution (e.g., minimum/typical/maximum)

Various timing diagrams and other graphs are used to illustrate the parameters.

And that’s pretty much all there is to it.  A modest 60 pages (with lots of whitespace, easy to read). As promised, no more, no less.

You can find more on the announcement in their release; the document is available for download on the MIG website (you’ll need to provide your info).

Leave a Reply

featured blogs
Jun 13, 2024
I've just been introduced to the DuoFlex 4K Dual-Screen Display from HalmaPixel, and now I'm drooling with desire all over my keyboard....

featured paper

Navigating design challenges: block/chip design-stage verification

Sponsored by Siemens Digital Industries Software

Explore the future of IC design with the Calibre Shift left initiative. In this paper, author David Abercrombie reveals how Siemens is changing the game for block/chip design-stage verification by moving Calibre verification and reliability analysis solutions further left in the design flow, including directly inside your P&R tool cockpit. Discover how you can reduce traditional long-loop verification iterations, saving time, improving accuracy, and dramatically boosting productivity.

Click here to read more

featured chalk talk

VITA RF Product Portfolio: Enabling An OpenVPX World
Sponsored by Mouser Electronics and Amphenol
Interoperability is a very valuable aspect of military and aerospace electronic designs and is a cornerstone to VITA, OpenVPX and SOSA. In this episode of Chalk Talk, Amelia Dalton and Eddie Alexander from Amphenol SV explore Amphenol SV’s portfolio of VITA RF solutions. They also examine the role that SOSA plays in the development of military and aerospace systems and how you can utilize Amphenol SV’s VITA RF solutions in your next design.
Oct 25, 2023
28,907 views