Q-Flex QA-750 Single Axis Quartz Accelerometer
Overview
Honeywell’s Q-Flex QA-750 accelerometer is a cost-effective, single axis quartz sensor package designed for a broad array of high-performance marine and industrial applications for vibration measurement.
As with the entire Q-Flex family of accelerometers, the QA-750 features a patented Q-Flex etched-quartz-flexure seismic system and its amorphous quartz proof-mass structure provides excellent bias, scale factor and axis alignment stability.
The integral electronics develops an acceleration proportional output current, providing both static and dynamic acceleration measurements. By use of a customer supplied output load resistor, appropriately scaled for the acceleration range of the application, the output current can be converted into a voltage.
Key Honeywell Advantages
As with the entire Q-Flex family of accelerometers, the QA-750 features a patented Q-Flex etched-quartz-flexure seismic system and its amorphous quartz proof-mass structure provides excellent bias, scale factor and axis alignment stability.
The integral electronics develops an acceleration proportional output current, providing both static and dynamic acceleration measurements. By use of a customer supplied output load resistor, appropriately scaled for the acceleration range of the application, the output current can be converted into a voltage.
Key Honeywell Advantages
- High value
- Environmentally rugged
- Analog output
- Compact design
- Field-adjustable range
- Built-in test
- Optional thermal compensation
Specifications
Key Differentiators
Certifications
- ISO-9001
Key Savings
- High value: precision at an affordable price
Dimensions
Weight
- 52.5 ±4 grams
Dimensions
- 0.600 in. Max Height (bottom to mounting surface)
- Ø1.07 ±0.01 in. Diameter (below mounting surface)
Performance Data
Bias
- <8 mg
Axis Misalignment - One-year Composite Repeatability
- <300 µrad
Scale Factor - One-year Composite Repeatability
- 1.20 to 1.46 mA/g
- <1000 ppm (w/o model data)
Bias -One-year Composite Repeatability
- <1000 μg (w/o model data)
Quiescent Current per Supply
- <16 mA
Vibration Rectification
- <200 µg/g²rms (50-500 Hz)
- <60 µg/g²rms (50-500 Hz)
Temperature Sensitivity
- <190 ppm/°C
- <60 μg/°C
Operating Temperature
- -55 to +95 ºC
Resolution/Threshold
- <1 µg
Electrical Interface
- Power / Signal Ground
- Temp Sensor
- Voltage Self Test
Vibration Peak Sine
- 20 g @ 30-500 Hz
Axis Misalignment
- <7000 µrad
Thermal Modeling
- -010 No
- -020 Yes
Quiescent Power
- <480 mW @ ±15 VDC
Intrinsic Noise
- <7 µg-rms (0-10 Hz)
- <70 µg-rms (10-500 Hz)
Input Voltage
- ±13 to ±18 voltage alternating current
Case Material
- 300 Series Stainless Steel
Scale Factor
- 1.20 to 1.46 mA/g
Applications
- Building and bridge tilt
- Railway monitoring
- Robotics Controls
- Surface Marine
- Sway monitoring
- Underwater Marine
Input Range
- ±30 g
Vibration
- <200 g/g2rms (50-500 Hz)
- <60 g/g2rms (50-500 Hz)
Bandwidth
- >300 Hz
Output
- Analog
Shock
- 200 g
