Anti-shock and High-Temp Quartz Accelerometer

ER-QA-03D:
1. High temperature resistance and shock resistance;
2. Excellent repeatability and high reliability;
3. It can be used for both static and dynamic testing.

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Introduction

ER-QA-03D Anti-shock and High-Temp Quartz Accelerometer

Introduction
ER-QA-03D series quartz flexible accelerometer is a kind of high temperature and vibration resistance accelerometer, the product has excellent repeatability, start-up performance, high temperature and vibration resistance and high reliability, can be used for static test or dynamic test, is also a standard vibration sensor.

The product adopts unique high temperature and anti-vibration design, packaging technology and special circuit, the output current of the product is proportional to the measured acceleration, providing static and dynamic acceleration measurement, users can choose the appropriate sampling resistance through calculation, to achieve high precision output, and can be built in temperature sensor according to user needs, for bias and scale factor compensation，reduce the impact of ambient temperature. We can replace QA650, T185, T160, JAE series products in place, but we use double torque structure, which is different from other companies' products, can make the accelerometer bias and scale factor more stable, and have independent intellectual property rights. This product has been launched since 2010, and the number of deliveries has reached thousands. After years of application, it has become a mature product, especially for the measurement while drilling of oil drilling.

Applications
Inclination angle test of bridges, DAMS, oil Wells, coal mines, etc.
Control of high-speed railways, stability control of ships, etc.

Specifications

Parameter	ER-QA-03D01	ER-QA-03D02	ER-QA-03D03
Output range	±30g	±30g	±30g
Bias K0/K1	<10mg	<15mg	<15mg
Bias monthly comprehensive repeatability σ k0 (1σ, 1month)	<50µg	<200µg	<200µg
Temperature coefficient	<50µg/℃	<100µg/℃	<100µg/℃
Scale factor K1	1.1~1.3 mA/g	1.1~1.3 mA/g	1.1~1.3mA/g
Scale factor monthly comprehensive repeatability σ k1/k1(1σ , 1month)	<80 ppm	<150 ppm	<150 ppm
Bias temperature coefficient (Total temperature mean)	<100ppm	<200ppm	<200ppm
Installation error	<1500µrad	<1500µrad	<1500µrad
Vibration rectification error	<30µg/g 2rms(50-500Hz)	<100µg/g 2rms(50-500Hz)	<100µg/g2rms (50-500Hz)
Noise	<3000µg-rms (0-10000Hz)	<3000µg-rms (0-10000Hz)	<3000µg-rms (0-10000Hz)
Operating temperature range	-55~96℃	-55~155℃	-55~180℃
Shock	500g 0.5ms	1000g 0.5ms	1000g 0.5ms
Vibration	25g@30-500Hz	25g@30-500Hz	25g@30-500Hz
Resolution	<10µg	<10µg	<10µg
Bandwidth	>300Hz	>300Hz	>300Hz
Current consumption	＜20mA	＜20mA	＜20mA
Power dissipation@ ±15VDC	＜480mW	＜480mW	＜480mW
Input voltage	±13 to ±18V	± 13 to ± 18V	±13 to ± 18V
Weight	＜55g	＜55g	＜55g
Mounting diameter	Ф25mm	Ф25mm	Ф25mm
Height	＜21.5mm	＜21.5mm	＜21.5mm
Shell material	300 series stainless steel	300 series stainless steel	300 series stainless steel