Wide Range Quartz Accelerometer (±70g)

ER-QA-03B:
1. Bias repeatability: 10-30μg;
2. Scale factor repeatability: 15-50ppm;
3. Class II non-linearity repeatability: 10-30μg/g².

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Introduction

ER-QA-03B Wide-Range Quartz Accelerometer

Introduction
ER-QA-03B Wide-Range Quartz Accelerometer for aerospace with wide-range, high accuracy, high reliability, not only can be used in aviation and aerospace inertial test but also in both static and dynamic acceleration measurement. In addition, the accelerometer uses a temperature sensor, which the operator can use to compensate bias and scale factor parameters to reduce the influence of temperature factors.

Feature
As one of the reference values for selecting quartz accelerometers, ER-QA-03B not only meets the demand for wide range, but also guarantees bias repeatability and scale factor repeatability compared with other accelerometers with similar range.

Applications
Flight control
Stabilization
Aircraft navigation systems
Attitude heading reference systems (AHRS)
Ground vibration testing (GVT)-wind tunnel testing

Specifications

No.	Parameters	ER-QA-03B1	ER-QA-03B2	ER-QA-03B3
1	Range	±70g	±70g	±70g
2	Threshold/Resolution	5μg	5μg	5μg
3	Bias	≤±3 mg	≤±3 mg	≤±5 mg
4	Scale factor	0.8~1.5 mA/g	0.8~1.5 mA/g	0.8~1.5 mA/g
5	Class II non-linearity	≤±10μg /g²	≤±15μg /g²	≤±20μg /g²
6	Bias repeatability	≤10 μg	≤20 μg	≤30 μg
7	Scale factor repeatability	≤15ppm	≤30 ppm	≤50 ppm
8	Class II non-linearity repeatability	≤±10 μg/g²	≤±20 μg/g²	≤±30 μg/g²
9	Bias temp coefficient	≤±10 μg/℃	≤±30 μg/℃	≤±50 μg/℃
10	Scale factor temp coefficient	≤±10 ppm/℃	≤±30 ppm/℃	≤±50 ppm/℃
11	Noise	≤5mv	≤5mv	≤5mv
12	Natural frequency	400~800 Hz	400~800 Hz	400~800 Hz
13	Bandwidth	800~2500 Hz	800~2500 Hz	800~2500 Hz
14	Vibration	6g (20-2000Hz)	6g (20-2000Hz)	6g (20-2000Hz)
15	Shock	100g, 5ms, 1/2sin	100g, 5ms, 1/2sin	100g, 5ms, 1/2sin
16	Operating temperature	-40~+80℃	-40~+80℃	-40~+80℃
17	Storage temperature	-60~+120℃	-60~+120℃	60~+120℃
18	Power	±12~±15V	±12~±15V	±12~±15V
19	Consume current	≤±20mA	≤±20mA	≤±20mA
20	Size	Ф25.4X30mm	Ф25.4X30mm	Ф25.4X30mm
21	Weight	≤80g	≤80g	≤80g