Small Size Quartz Accelerometer For Aerospace

ER-QA-03C:
1. Bias repeatability: 15-80μg;
2. Scale factor repeatability: 15-80ppm;
3. Class II non-linearity repeatability: 20-50μg/g2.

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Introduction

ER-QA-03C Small Size Quartz Accelerometer For Aerospace

Introduction
ER-QA-03C Small Size Quartz Accelerometer for aerospace is a smaller volume quartz accelerometer, not only it can be used in aviation and aerospace inertial tests but also can be used in both static and dynamic acceleration measurements. 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.

Applications in inertial navigation and guidance systems
Missiles, aircraft, ships, combat vehicles and other navigation and guidance systems must have speed and position information, in the occasion of low requirements, people use air speedometer, Mach number sensor, odometer, etc. But with the improvement of the performance requirements of weapon systems, the above instruments can not meet the requirements. The linear accelerometer can be installed in the moving object to directly measure its acceleration, and then get the speed and position, the measurement accuracy is high, the dynamic performance is good, far better than the air speedometer, odometer. Therefore, linear accelerometer is one of the most important applications in inertial navigation guidance system.

Specifications

No.	Parameters	ER-QA-03C1	ER-QA-03C2	ER-QA-03C3
1	Range	±60g	±60g	±60g
2	Threshold/Resolution	5μg	5μg	5μg
3	Bias	≤±5 mg	≤±5 mg	≤±5 mg
4	Scale factor	1.0±0.2 mA/g	1.0±0.2 mA/g	1.0±0.2 mA/g
5	Class II non-linearity	≤±20 μg/g2	≤±30 μg/g2	≤±50 μg/g2
6	Bias repeatability	≤15 μg	≤50 μg	≤80 μg
7	Scale factor repeatability	≤15ppm	≤50 ppm	≤80ppm
8	Class II non-linearity repeatability	≤±20 μg/g2	≤±30 μg/g2	≤±50 μg/g2
9	Bias temp coefficient	≤±15 μg/℃	≤±50 μg/℃	≤±80 μg/℃
10	Scale factor temp coefficient	≤±15 ppm/℃	≤±80 ppm/℃	≤±100 ppm/℃
11	Noise	≤5mv	≤8.4mv	≤8.4mv
12	Natural frequency	350~800 Hz	350~800 Hz	350~800 Hz
13	Bandwidth	800~2500 Hz	800~2500 Hz	800~2500 Hz
14	Vibration	10g (20-2000Hz)	10g (20-2000Hz)	10g (20-2000Hz)
15	Shock	150g, 0.5ms, 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	Ф18.2X23mm	Ф18.2X23mm	Ф18.2X23mm
21	Weight	≤30g	≤30g	≤30g