We want to export a product from the US with the BMI270.
I suspect the unit will fall well below the controlled performance specs on the below, but the request is to say what the performance spec is (hence it is lower) and use the data sheet attached here, as evidence:
https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmi270-ds000.pdf
I don't have enough knowhow to convert the outputs of the data sheet, into the methodology of measurement requested by the export category.
Does bosch have any certification of the device for which export category it is in, or better yet, can you respond the the request below?
(ii) Mechanical gyroscopes or rate sensors having a bias repeatability less (better) than 0.0015 degrees per hour (MT if having a rated drift stability of less than 0.5 degrees (1 sigma or rms) per hour in a 1 g environment or specified to function at acceleration levels greater than 100 g);
Notes:
‘‘Repeatability’’ is the closeness of agreement among repeated measurements of the same variable under the same operating conditions when changes in conditions or non-operating periods occur between measurements.
‘‘Bias’’ is the accelerometer output when no acceleration is applied.
‘‘Scale factor’’ is the ratio of change in output to a change in the input.
The measurements of ‘‘bias’’ and ‘‘scale factor’’ refer to one sigma standard deviation with respect to a fixed calibration over a period of one year.
‘‘Drift Rate’’ is the component of gyro output that is functionally independent of input rotation and is expressed as an angular rate.
‘‘Stability’’ is a measure of the ability of a specific mechanism or performance coefficient to remain invariant when continuously exposed to a fixed operating condition. (This definition does not refer to dynamic or servo stability.)
a.1. Specified to function at linear acceleration levels less than or equal to 15 g and having any of the following:
a.1.a. A “bias” “stability” of less (better) than 130 micro g with respect to a fixed calibration value over a period of one year;
or
a.1.b. A “scale factor” “stability” of less (better) than 130 ppm with respect to a fixed calibration value over a period of one year;
or
a.2. Specified to function at linear acceleration levels exceeding 15 g but less than or equal to 100 g and having all of the following:
a.2.a. A “bias” “repeatability” of less (better) than 1,250 micro g over a period of one year;
and (i.e., needs to meet both a.2.a and a.2.b)
a.2.b. A “scale factor” “repeatability” of less (better) than 1,250 ppm over a period of one year;
or
a.3. Designed for use in inertial navigation or guidance systems and specified to function at linear acceleration levels exceeding 100 g;
(Note: 7A001.a.1 and 7A001.a.2 do not apply to accelerometers limited to measurement of only vibration or shock.)
or
b. Angular or rotational accelerometers, specified to function at linear acceleration levels exceeding 100 g
List of Items Controlled
Items:
a. Specified to function at linear acceleration levels less than or equal to 100 g and having any of the following:
a.1. An angular rate range of less than 500 degrees per second and having any of the following:
a.1.a. A “bias” “stability” of less (better) than 0.5 degree per hour, when measured in a 1 g environment over a period of one month, and with respect to a fixed calibration value;
or
a.1.b. An “angle random walk” of less (better) than or equal to 0.0035 degree per square root hour;
(Note: 7A002.a.1.b does not control “spinning mass gyros”. Spinning mass gyros are gyros which use a continually rotating mass to sense angular motion.)
or
a.2. An angular rate range greater than or equal to 500 degrees per second and having any of the following:
a.2.a. A “bias” “stability” of less (better) than 4 degrees per hour, when measured in a 1 g environment over a period of three minutes, and with respect to a fixed calibration value;
or
a.2.b. An “angle random walk” of less (better) than or equal to 0.1 degree per square root hour;
(Note: 7A002.a.2.b does not apply to “spinning mass gyros”.)
or
b. Specified to function at linear acceleration levels exceeding 100 g.
List of Items Controlled
Items:
b. Accelerometers of any type, designed for use in inertial navigation systems or in guidance systems of all types, specified to function at acceleration levels greater than 100 g.
(Note: This does not include accelerometers that are designed to measure vibration or shock.)
7A102 Gyros, other than those controlled by 7A002 (see List of Items Controlled), and “specially designed” “parts” and “components” therefor.
List of Items Controlled
b. Gyros of any type, designed for use in inertial navigation systems or in guidance systems of all types, specified to function at acceleration levels greater than 100 g.