Small Size and High Temperature Quartz Accelerometer (Φ18.2)

ER-QA-03F:
1. Bias repeatability: 150-220μg;
2. Scale factor repeatability: 150-220ppm;
3. Class II non-linearity repeatability: ±40~±50μg/g2.

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Introduction

ER-QA-03F Small Size and High Temperature Quartz Accelerometer

Introduction
ER-QA-03F series quartz flexible accelerometer is a compact, high temperature and vibration resistant accelerometer. The product has excellent repeatability, start-up performance, high temperature and vibration resistance and high reliability, which can be used for static and dynamic testing, and is also a standard vibration sensor.

The product adopts unique miniaturization, high temperature and vibration resistance design, advanced packaging technology and special circuit, the output current of the product is proportional to the input acceleration, the user can select the appropriate sampling resistance by calculation, to achieve high precision output. And according to user needs built-in temperature sensor, can be used to bias and scale factor compensation, reduce the impact of ambient temperature. This product has been launched since 2012, and the number of deliveries has reached thousands. After many years of application, it has become a mature product, especially for the large-scale application in the measurement while drilling of oil drilling.

Specifications

Parameters	ER-QA-03F01	ER-QA-03F02
Range	±30g	±30g
Threshold value	30μg	30μg
Bias k0/k1	≤(±20 mg)	≤(±20 mg)
Scale factor k1	1.9~2.1mA/g	1.9~2.1mA/g
Second-order nonlinear coefficient K2	≤±20μg /g2	≤±50μg /g2
0g 4 hours short-term stability	≤30 μg	≤40 μg
1g 4 hours short-term stability	≤30 ppm	≤40 ppm
Bias comprehensive repeatability σk0(1σ, 1month)	≤150 μg	≤220 μg
Scale factor comprehensive repeatability σk1/k1(1σ, 1month)	≤150ppm	≤220 ppm
Nonlinear coefficient Comprehensive repeatability k2/k1(1σ, 1month)	≤±40 μg /g2	≤±50 μg /g2
Bias temperature coefficient	≤±80 μg /℃	≤±150 μg /℃
Scale factor Temperature coefficient	≤±100 ppm /℃	≤±200 ppm /℃
Noise(Sampling resistance is 840Ω)	≤8mv	≤8.4mv
Natural frequency	350~800 Hz	350~800 Hz
Bandwidth	800~2500 Hz	800~2500 Hz
Vibration	25g(20-2000Hz)	25g(20-2000Hz)
Shock	1000g,0.5ms,1/2sin	1000g,0.5ms,1/2sin
Operating temperature range	-40℃+150℃	-40+180℃
Storage temperature range	-60-+180℃	-60-+200℃
Power supply	±12~±15V	±12~±15V
Current consumption	±20mA	±20mA
Size	Ф18.2X16mm	Ф18.2X16mm
Weight	25g	25g