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

ER-QA-03F (30 μg):
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

Small Size and High Temperature Quartz Accelerometer

Introduction
ER-QA-03F is a small size accelerometer which is mainly used for oil well logging. The output current is linear with the force. The operator can select a reasonable sampling resistor according to the calculation to achieve the highest precision output. The product can also be used for static testing and dynamic testing, which is a standard vibration sensor.

At present, with the increasing demand for the miniaturization of quartz accelerometers in various fields, compared with the traditional Φ25.4 quartz accelerometer, Φ18.2 or even smaller products are becoming more and more popular, under the premise of the same level of accuracy, it is smaller in size and lighter in weight, while inheriting the advantages of the original manufacturing process, suitable for mass production, with higher cost performance.

Features
1. Excellent start repeatability
2. Good environmental performance
3. Analog output
4. Adjustable output range
5. Small dimensions

Specifications

No	Parameters	ER-QA-03F1	ER-QA-03F2
1	Range	±30g	±30g
2	Threshold	30μg	30μg
3	Bias k0/k1	≤(±20mg)	≤(±20mg)
4	Scale factor k1	1.8~2.4mA/g	1.8~2.4mA/g
5	Second-order non-linearity k2/k1	≤±20μg/g2	≤±50μg/g2
6	Bias composite repeatability σ K0 (1σ, one month)	≤150 μg	≤220 μg
7	Scale factor repeatability σ K1/k1 (1σ,one month)	≤150ppm	≤220ppm
8	Non-linearity coefficient composite repeatability K2/K1(1σ,one month)	≤±40μg/g2	≤±50μg/g2
9	Bias Temp coefficient	≤±80μg/℃	≤±150μg/℃
10	Scale factor Temp coefficient	≤±100 ppm/℃	≤±200 ppm/℃
11	Noise	≤8mv	≤8.4mv
12	Natural frequency	350~800Hz	350~800Hz
13	Bandwidth	800~2500Hz	800~2500Hz
14	Vibration	25g (20-2000Hz)	25g (20-2000Hz)
15	Shock	1000g, 0.5ms, 1/2sin	1000g, 0.5ms, 1/2sin
16	Operating Temp range	-40~+150℃	-40~+180℃
17	Storage Temp range	-60~+180℃	-60~+200℃
18	Power	±12~±15V	±12~±15V
19	Current consumption	≤±20mA	≤±20mA
20	Size	Φ18.2×16mm	Φ18.2×16mm
21	Weight	≤25g	≤25g