Selection of MEMS Accelerometers for Tilt Measurements

Table 1

Tilt sensors versus types of accelerometer.

Number	Type of accelerometer	Type of tilt sensor
		A	B
1	Uniaxial
	Measurement range
	Mathematical formula	(3)	(14)
2	Biaxial
	Measurement range
	Mathematical formula	(12); (10); (3)	: (3)	: (4)
3	Biaxial
	Measurement range
	Mathematical formula		: (3)	: (6)
4	Biaxial
	Measurement range
	Mathematical formula		: (5)	: (9); (4)
5	Triaxial
	Measurement range
	Mathematical formula	(12); (10); (3)	: (7); (5); (3)	: (8); (9); (6); (4)
6	Triaxial
	Measurement range
	Mathematical formula	(12); (10); (3)	: (7); (5); (3)	: (8); (9); (6); (4)
7	Triaxial
	Measurement range
	Mathematical formula	(16); (15); (14)	: (7); (5); (3)	: (8); (9); (6); (4)
8	Multiaxial
	Measurement range
	Mathematical formula	(12)^†; (10)^†; (3)^†	: (7)^†; (5)^†; (3)^†	: (8)^‡; (9)^†; (6)^‡; (4)^‡
9	Multiaxial
	Measurement range
	Mathematical formula	(16)^†; (15)^†; (14)^†

A: single-axis tilt sensor.
B: dual-axis tilt sensor.
Roll γ must be determined using (1).
Accelerometer indications must be first converted into Cartesian components (see (17)).
Accelerometer indications must be first converted into Cartesian components (see (17)); then roll γ must be determined with (1).