High Temperature Quartz Accelerometer (Ф25mm)

ER-QA-03D (-55~180℃):
1. High-Temp 180℃;
2. Small Size Ф25×21mm;
3. Anti-shock 500-1000g 0.5ms.

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Introduction

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

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. After years of application, it has become a mature product, especially for the measurement while drilling of oil drilling.

Applications

MWD tools

LWD tools

Oil well logging

Gyro inclinometer

Specifications

Parameter	ER-QA-03D01	ER-QA-03D02	ER-QA-03D03
Output range	±30g	±30g	±30g
Bias K0/K1	<10mg	<15mg	<15mg
Bias monthly repeatability（1σ, 1month)	<50µg	<200µg	<200µg
Bias Temperature coefficient	<50µg/℃	<100µg/℃	<100µg/℃
Scale factor K1	1.2±0.1 mA/g	1.2±0.1 mA/g	1.2±0.1mA/g
Scale factor error	8.3%	8.3%	8.3%
Scale factor repeatability （1σ, 1month)	<80 ppm	<150 ppm	<150 ppm
Scale factor temperature coefficient	<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