KCC's Quizzes AQQ304 - A pure logic
1. Quote of the month: "I am not lazy, I'm just in energy-saving mode" - unknown
2. Quiz AQQ304 about finding a pure logic puzzle
Mike is looking at Anne, but Anne is looking at Paul.
Mike is married, but Paul is not.
Question:
Is a married
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August Monthly Blog Quiz! Read the blog, take the quiz, and you could win a gift card
Important: Read the blog first . The quiz questions are all based on the content of the blog:
Stay in the loop and win! Read the blog Current Output Driving Industrial Loops , then take our quick five-question quiz for a chance to win a gift card
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ADIS16497
Recommended for New Designs
The ADIS16497 is a complete inertial system that includes a triaxis gyroscope and a triaxis accelerometer. Each inertial sensor in the ADIS16497 combines...
Datasheet
ADIS16497 on Analog.com
Hi
what is the g value for changing accelerometer outputs from g unit into m/s2. (for navigation purposes)
the integration of accelerometer in navigatin algorithms needs units of m/s2 but why IMUs usually give accelerometer in Gs instead of m/s2 ?
thanks
Hello
there are 4 possible values for g coefficient to be used to convert the accelerometer values into m/s2:
1- the standard value (1 g = 9.80665 m/s^2)
2- the value of g at the calibration site (1g = 9.798 m/sec^2 as explained in Definition of "g" )
3- the value of g at the location of using and navigating the IMU (calculated by the formula depending on Latt & Alt )
4- using any of above mentioned values dosnot affect gps-ins accuracy.
I think the standard value is the best answer but i am not sure .
please help. thanks
Hello taghi
1g = 9.798 m/sec^2 for our parts
Here you can find some more info: Definition of "g" - Documents - MEMS Inertial Sensors - EngineerZone
Hope you question is solved,
Mario SM
Is it for all parts?
This value must had been stated clearly in datasheet!
Thanks
It was featured in older parts, and it is also mentioned in some app notes, but we will gather the feedback.
many thanks for your time!
Mario SM
Hello MarioSM
which of the old parts or app notes mention this number?(9.798)
many thanks for your reply.
taghi
Hello MarioSM
which of the old parts or app notes mention this number?(9.798)
many thanks for your reply.
taghi
Hello taghi, you can find old datasheets with basic introduction to this concepts as in the page 4 of this one: ADXL150/250 data sheet
As mentioned in my first answer, if you need more accuracy than that you can relay on WGS-84 calculations, which are our current standard.