Gyrosens is a professional manufacturer and OEM/ODM provider of inertial sensors and navigation solutions since 2008.

GSQAMini125 Miniature High-Temperature Quartz Accelerometer 1

GSQAMini125 Miniature High-Temperature Quartz Accelerometer 2

GSQAMini125 Miniature High-Temperature Quartz Accelerometer 3

GSQAMini125 Miniature High-Temperature Quartz Accelerometer

GSQAMini125 packs quartz flex accelerometer performance into an extreme miniaturized φ18.8×21mm, 25g package. Withstands -45°C to +125°C (185°C optional) for high-temperature environments. ±20g range, bias stability ≤100μg, current output, and 1000g shock tolerance. This sensor is engineered specifically for MWD (measurement-while-drilling), geophysical exploration, and other confined high-temperature spaces where conventional sensors cannot survive.

Feature:

● Excellent index repeatability
● Analog output
● Small size and light weight
● Wide load resistance range
● Square precision mounting flanges
● Application in measurement system of oil drilling
● Two models are available
● It has good high temperature resistance

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Product Introduction

Quartz flexible accelerometer is a precision instrument comprises quartz glass flexible support and advanced servo circuit based on the principal of inertia. When the carrier is subjected to acceleration, the output of the accelerometer is precisely proportional to the input acceleration. Our accelerometer has a current output form of high output impedance, and users can choose the sampling resistance according to their requirement without affecting the stability of the system.

At present, our quartz flexible accelerometer has formed a series of products, types from the high-precision μg GSACC111Q accelerometer for satellite microgravity measurement to low-cost, anti-harsh environment GSACC117Q accelerometer, as many as dozens, and widely used in aerospace, aviation, navigation, ship, vehicle, petroleum, geotechnical engineering and other fields, providing signals for navigation, guidance, control, leveling, monitoring and other systems.

Dimensions

Unit：mm

5 (15)

4 (22)

Technical Specifications

Parameter	GSQAMini125	GSQAMini185
Power supply parameter
Power Voltage	12~18VDC	12~18VDC
Power 25°C	90mW	90mW
Supply current	6mA	6mA
Product performance
Size	Ø18.8×21	Ø18.8×21
Bias	<20 mg	<30 mg
Bias stability	≤100ug	≤200ug
Bias temperature sensitivity	100ug/°C	100ug/°C
Bias repeatability	≤100ug	≤200ug
Scale factor	2.2~3.5mA/g	1.5~3.5mA/g
Scale factor temperature sensitivity	200ppm/°C	300ppm/°C
Second order nonlinear coefficient	≤80μg/g²	≤100μg/g²
Second order nonlinearity coefficient repeatability	≤60μg/g²	≤60μg/g²
Scale factor repeatability	100ppm	200ppm
Threshold	<10μg	<10μg
Resolution	<10 μg	<10μg
Bandwidth	<200 Hz	<200 Hz
Weight	≤25g	≤25g
Range	±20 g	±20 g
Environment
Operating temperature	-45°C～+125°C	-45°C～+185°C
Storage temperature	-55°C～130°C	-55°C～190°C
Random vibration	20 grms	20 grms
Shock	1000g	1000g