Place of Origin:
China
Brand Name:
Liocrebif
Certification:
GJB 9001C-2017
Model Number:
LKF-Quartz Accelerometer
Introduction
The Quartz Accelerometer is a high-performance, single-axis torque-feedback sensor that utilizes advanced quartz flexure structure and closed-loop servo technology. It precisely detects external acceleration signals and outputs a current signal proportional to the acceleration via a high-precision demodulation circuit. Engineered for extreme environments, this product excels in high-temperature resistance, vibration resistance, and shock resistance. It is widely applicable in aerospace high-precision navigation systems, oil drilling inclinometry, geological exploration, and other fields, providing reliable support for accurate measurements under complex operating conditions.
Technical Specification
The Quartz Accelerometer features an innovative quartz flexure pendulum design and torque-feedback closed-loop control technology, combined with an optimized temperature compensation algorithm. This ensures exceptional measurement accuracy and stability even under harsh conditions such as high temperatures (up to 180°C) and strong vibrations.
Its high-sensitivity servo circuit can demodulate and amplify weak signals in real-time, significantly enhancing dynamic response capabilities while maintaining excellent resistance to electromagnetic interference, meeting the requirements of industrial and military-grade applications. Additionally, its compact structural design allows for easy integration into space-constrained scenarios, providing users with a high-performance, reliable acceleration measurement solution.
Table 1 Performance Parameters of High Temperature and Shock Resistant Accelerometer
|
|
Large-sized accelerometer |
Small-sized accelerometer |
||||
|
|
T180L |
T150L |
T125L |
T180S |
T150S |
T125S |
|
Range[g] |
≥±30 |
≥±30 |
≥±30 |
≥±30 |
≥±30 |
≥±30 |
|
Bias[mg] |
≤±10 |
≤±7 |
≤±7 |
≤±15 |
≤±10 |
≤±7 |
|
bias stability [µg] |
≤150(1 day) |
≤100(1 day) |
≤80(1 day) |
≤200(1 day) |
≤150(1 day) |
≤100(1 day) |
|
Bias Temperature Coefficient [µg/ºC] |
≤±200 |
≤±150 |
≤±100 |
≤±200 |
≤±150 |
≤±100 |
|
Scale Factor[mA/g] |
1.0～3.0 |
1.0～3.0 |
1.0～3.0 |
1.0～1.5 |
1.0～1.5 |
1.0～1.5 |
|
Scale factor stability[ppm] |
≤200(1 day) |
≤150(1 day) |
≤100(1 day) |
≤200(1 day) |
≤150(1 day) |
≤100(1 day) |
|
Scale Factor Temperature Coefficient[ppm/ºC] |
≤±300 |
≤±200 |
≤±100 |
≤±300 |
≤±200 |
≤±100 |
|
Second-order nonlinear coefficient[µg/g2] |
≤±50 |
≤±50 |
≤±50 |
≤±50 |
≤±50 |
≤±50 |
|
Stability of second-order nonlinear coefficients[µg/g2] |
≤30(1 day) |
≤30(1 day) |
≤30(1 day) |
≤30(1 day) |
≤30(1 day) |
≤30(1 day) |
|
Threshold/Resolution [µg] |
＜20 |
＜20 |
＜20 |
＜20 |
＜20 |
＜20 |
|
Noise[µA] |
＜15 |
＜15 |
＜15 |
＜15 |
＜15 |
＜15 |
|
bandwidth [Hz] |
≥350 |
≥350 |
≥350 |
≥350 |
≥350 |
≥350 |
|
Mounting angle [µrad] |
≤±200 |
≤±200 |
≤±200 |
≤±200 |
≤±200 |
≤±200 |
|
Installation angle stability[µrad] |
≤±80 |
≤±80 |
≤±80 |
≤±80 |
≤±80 |
≤±80 |
|
Work environment |
|
|
|
|
|
|
|
Working temperature range [ºC] |
－45～＋180 |
－45～＋150 |
－45～＋125 |
－45～＋180 |
－45～＋150 |
－45～＋125 |
|
Shock[g] |
1000 |
1000 |
1000 |
1000 |
1000 |
1000 |
|
Vibration[g] |
20 |
20 |
20 |
20 |
20 |
20 |
|
low pressure[133pa,10min] |
＜5﹪ |
＜5﹪ |
＜5﹪ |
＜5﹪ |
＜5﹪ |
＜5﹪ |
|
Power supply conditions |
|
|
|
|
|
|
|
Supply Voltage [VDC] |
±7～±18 |
±7～±18 |
±7～±18 |
±7～±18 |
±7～±18 |
±7～±18 |
|
Consumption current[mA] |
≤±20 |
≤±20 |
≤±20 |
≤±16 |
≤±16 |
≤±16 |
|
Power consumption[mW] |
≤480 |
≤480 |
≤480 |
≤480 |
≤480 |
≤480 |
|
Insulation resistance[MΩ] |
≥100 |
≥100 |
≥100 |
≥100 |
≥100 |
≥100 |
|
Physical indicators |
|
|
|
|
|
|
|
Weight[grams] |
≤60 |
≤60 |
≤60 |
≤25 |
≤25 |
≤25 |
|
Dimensions[mm] |
Φ25×23 |
Φ25×23 |
Φ25×23 |
Φ18.2×17.6 |
Φ18.2×17.6 |
Φ18.2×17.6 |
|
Housing Material |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
1Cr18Ni9Ti |
Table 2 Performance Parameters of High Precision Accelerometer
|
Name |
H30 |
H20 |
H10 |
|
Range |
±60 g |
±60 g |
±60 g |
|
Bias |
≤4 mg |
≤4 mg |
≤4 mg |
|
Bias monthly repeatability, 1σ(55℃) |
≤5 μg |
≤10 μg |
≤15 μg |
|
Bias year repeatability, 1σ(55℃) |
≤15 μg |
≤30 μg |
≤45 μg |
|
Bias temperature coefficient |
≤15 μg/ºC |
≤25 μg/ºC |
≤30 μg/ºC |
|
Scale Factor |
1.00 to 1.25 mA/g |
1.00 to 1.25 mA/g |
1.00 to 1.25 mA/g |
|
Scale factor Monthly repeatability, 1σ(55℃) |
≤5 ppm |
≤10 ppm |
≤15 ppm |
|
Scale factor year repeatability, 1σ(55℃) |
≤15 ppm |
≤30ppm |
≤45 ppm |
|
Scale factor temperature coefficient |
≤20 ppm/ºC |
≤25 ppm/ºC |
≤30 ppm/ºC |
|
Fix error angle |
≤1000 μrad |
≤2000 μrad |
≤2000 μrad |
|
Installation error angle month repeatability, 1σ(55℃) |
≤10 μrad |
≤20 μrad |
≤30 μrad |
|
Installation error angle year repeatability, 1σ(55℃) |
≤30 μrad |
≤50 μrad |
≤80 μrad |
|
Installation error angle temperature coefficient |
≤4 μrad/ºC |
≤4 μrad/ºC |
≤4 μrad/ºC |
|
Second-order nonlinear coefficient |
≤10 μg/g2 |
≤10 μg/g2 |
≤10 μg/g2 |
|
Vibration rectification error |
≤20 μg/g2rms (50-500 Hz) |
≤40 μg/g2rms (50-500 Hz) |
≤40 μg/g2rms (50-500 Hz) |
|
≤60 μg/g2rms (500-2 kHz) |
≤60 μg/g2rms (500-2 kHz) |
≤150 μg/g2rms (500-2 kHz) |
|
|
Intrinsic noise |
≤7 μg-rms (0-10 Hz) |
≤7 μg-rms (0-10 Hz) |
≤7 μg-rms (0-10 Hz) |
|
≤70 μg-rms (10-500 Hz) |
≤70 μg-rms (10-500 Hz) |
≤70 μg-rms (10-500 Hz) |
|
|
≤1,500 μg-rms (500-10 kHz) |
≤1,500 μg-rms (500-10 kHz) |
≤1,500 μg-rms (500-10 kHz) |
|
|
Environmental testing |
|||
|
Operating temperature |
-55 to +95 ºC |
-55 to +95 ºC |
-55 to +95 ºC |
|
Shock, half sine |
250 g,4ms |
250 g,4ms |
250 g,4ms |
|
Sine Vibration |
15 g @ 20-2 kHz |
15 g @ 20-2 kHz |
15 g @ 20-2 kHz |
|
Resolution/Threshold |
≤1 μg |
≤1 μg |
≤1 μg |
|
Bandwidth |
≥800 Hz |
≥800 Hz |
≥800 Hz |
|
Temperature sensor |
|||
|
AD590 |
✔ |
✔ |
✔ |
|
Electrical Specifications |
|||
|
static current |
≤16 mA |
≤16 mA |
≤16 mA |
|
Rated power (±15V DC) |
≤250 mW |
≤250 mW |
≤250 mW |
|
DC Power Supply |
±13 ~ ±28 V DC |
±13 ~ ±28 V DC |
±13 ~ ±28 V DC |
|
Appearance and weight |
|||
|
Weight |
70 ±2 grams |
70 ±2 grams |
70 ±2 grams |
|
Diameter below the mounting surface |
Ø25.4 mm Max |
Ø25.4 mm Max |
Ø25.4 mm Max |
|
Height below mounting surface |
14.8 mm Max |
14.8 mm Max |
14.8 mm Max |
|
Housing Material |
300 series stainless steel |
300 series stainless steel |
300 series stainless steel |
Table 3 Performance Parameters of Ordinary Accelerometer
|
Name |
|
S50A |
S50B |
S50C |
S60A |
S60B |
S60C |
S60 |
|
Range |
g |
-30～+30 |
-30～+30 |
-30～+30 |
-60～+60 |
-60～+60 |
-60～+60 |
-60～+60 |
|
Bias |
mg |
≤|±1| |
≤|±5| |
≤|±10| |
≤|±3| |
≤|±5| |
≤|±10| |
≤|±5| |
|
Scale Factor |
mA/g |
1±0.25 |
1±0.25 |
1±0.25 |
1±0.25 |
1±0.25 |
1±0.25 |
0.9±0.25 |
|
Second-Order Nonlinearity Coefficient (0～±30g) |
μg/g2 |
≤|±10| |
≤|±10| |
≤|±20| |
≤|±10| |
≤|±10| |
≤|±20| |
≤|±10| |
|
Bias Monthly Repeatability (1σ) |
μg |
≤10 |
≤30 |
≤80 |
≤10 |
≤30 |
≤80 |
≤30 |
|
Scale Factor Monthly Repeatability (1σ) |
ppm |
≤10 |
≤30 |
≤80 |
≤10 |
≤30 |
≤80 |
≤30 |
|
Second-Order Nonlinearity Coefficient Monthly Repeatability (1σ) |
μg/g2 |
≤8 |
≤15 |
≤20 |
≤8 |
≤15 |
≤20 |
≤15 |
|
Bias Temperature Coefficient |
μg/℃ |
≤|±10| |
≤|±30| |
≤|±80| |
≤|±10| |
≤|±30| |
≤|±80| |
≤|±30| |
|
Scale Factor Temperature Coefficient |
ppm/℃ |
|±10| |
|±30| |
|±80| |
|±10| |
|±30| |
|±80| |
|±30| |
|
Misalignment Angle (Gated, Swinging) |
″ |
≤|±60| |
≤|±60| |
≤|±60| |
≤|±100| |
≤|±100| |
≤|±100| |
≤|±100| |
|
Resolution |
μg |
≤|±5| |
≤|±5| |
≤|±5| |
≤|±5| |
≤|±5| |
≤|±5| |
≤|±5| |
|
Noise |
μA |
≤10 |
≤10 |
≤10 |
≤10 |
≤10 |
≤10 |
≤10 |
|
Quiescent Current |
mA |
≤|±20| |
≤|±20| |
≤|±20| |
≤|±20| |
≤|±20| |
≤|±20| |
≤|±20| |
|
Bandwidth |
Hz |
≥800 |
≥800 |
≥800 |
≥800 |
≥800 |
≥800 |
≥700 |
|
Weight |
grm |
≤80 |
≤80 |
≤80 |
≤80 |
≤80 |
≤80 |
≤30 |
|
Dimensions |
(mm) |
Φ25.4×31 |
Φ25.4×31 |
Φ25.4×31 |
Φ25.4×31 |
Φ25.4×31 |
Φ25.4×31 |
Φ18.2*23 |
|
Shock(1/2sin,11ms) |
g |
70g, three directions, twice in each direction (1/2sin, 11ms) |
100g, three directions, twice in each direction |
|||||
|
Vibration(RD) |
12.2g, three directions, 3min each direction |
|||||||
|
Operating Temperature |
-40℃～+85℃ |
|||||||
|
Supply Voltage |
±15DVC |
|||||||
Main Features
High-temperature resistance
Vibration/shock resistance
Compact size and lightweight
High stability and reliability
Temperature compensation
Rugged and durable
Application
Aerospace
High-precision navigation systems
Slope measurement
Oil drilling
Geological exploration systems
Industrial automation
Rail transit
Fig. 1 Dimensions of the external structure
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