Measurement Accelerometers
Q-Flex Technology in an Economical Package
For Q-Flex technology in an economical package, Honeywell offers the QA650, QA700 and QA750 measurement accelerometers. As with the entire Q-Flex family of accelerometers, these products feature patented Q-Flex® etched-quartz-flexure seismic system. An amorphous quartz proof-mass structure provides excellent bias, scale factor and axis alignment stability.
QA650 Q-Flex Accelerometer
Honeywell’s QA650 Accelerometer is for industrial grade applications including: automotive test instrumentation, braking system deceleration, industrial and robotic control, land vehicle navigation, subway and high-speed train ride comfort control and offshore drilling platform motion monitoring. Utilizing Q-Flex technology, the QA650 offers a robust design and quality assurance for superior reliability.
Features
- High value
- Environmentally rugged
- Analog output
- Compact design
- Built-in-test
- Field adjustable range
Applications
- Automotive test standard instrumentation
- Braking system deceleration
- Bridge and building sway and tilt monitoring
- Offshore drilling platform motion monitoring
- Industrial and robotic control
- Subway and train ride comfort control
QA700 Q-Flex Accelerometer
For Q-Flex technology in an economical temperature-compensated package, Honeywell produces the QA700. The QA700 acceleration sensor is ideal for a broad array of moderate performance applications, including high-speed train car leveling, building tilt and sway monitoring, and seismic sensing. As an option, the QA700 can be provided with a temperature-compensating algorithm where bias, scale facto, and axis misalignment performance are dramatically improved.
Features
- High value
- Analog output
- Environmentally rugged
- Compact design
- Hermetically sealed case
- Field-adjustable range
- Dual built-in test
Applications
- Flight and flight simulator control systems
- Radar platform leveling
- Inertial control systems
- Seismic sensing
QA750 Q-Flex Accelerometer
The Honeywell QA750 Accelerometer offers an economical solution for a broad array of moderate performance applications including: high-speed train car leveling, building tilt and sway monitoring and seismic sensing. The QA750 measurement accelerometer is available with the temperature-compensating algorithm where bias, scale factor and axis misalignment performance are dramatically improved.
Features
- High value
- Environmentally rugged
- Analog output
- Compact design
- Field-adjustable range
- Built-in test
- Optional thermal compensation
The integral electronics develops an acceleration-proportional output current providing both static and dynamic acceleration measurement. 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.
Below is a summary of the characteristics of the QA650, QA700 and QA750 Accelerometers.
Performance |
|||||
Input Range [g] |
±30 |
±30 |
±30 |
±30 |
±30 |
Bias [mg] |
<8 |
<8 |
<8 |
<8 |
<15 |
|
<500 |
<500 |
<500 |
<500 |
<600 |
|
<60 |
<60 |
<70 |
<70 |
<100 |
|
<200 | <200 | <400 | <400 | <500 |
Scale Factor [mA/g] |
1.20 to 1.46 |
1.20to 1.46 |
1.23 to 1.43 |
1.23 to 1.43 |
1.20 to 1.40 |
|
<1000 (w/o model data) |
<500 |
<1200 |
<500 |
<2500 |
|
<190 |
<190 |
<200 |
<200 |
<200 |
|
<200 | <200 | <400 | <400 | <500 |
Axis Misalignment [µrad] |
<7000 |
<7000 |
<2000 |
<2000 |
<15000 |
|
<300 |
<300 |
|
<400 |
|
|
<60 | <60 | <70 | <70 | <100 |
|
<100 | <100 | <200 | <200 | <250 |
Vibration Rectification [µg/g 2 ms] |
<60 (50-500 Hz) |
<60 (50-500 Hz) |
<50 (50-200 Hz) |
<50 (50-200 Hz) |
<100 (50-500 Hz) |
Intrinsic Noise [µg-rms] |
<7 (0-10 Hz) |
<7 (0-10 Hz) |
<7 (0-10 Hz) |
<7 (0-10 Hz) |
<3000 (0-10,000 Hz) |
Environment |
|||||
Operating Temperature Range [ºC] |
-55 to +95 |
-55 to +95 |
-55 to +96 |
-55 to +96 |
-55 to +96 |
Shock [g] |
200 |
200 |
385 |
385 |
385 |
Vibration Peak Sine [g] |
20 @ 30-500 Hz |
20 @ 30-500 Hz |
25 @ 20-2000 Hz |
25 @ 20-500 Hz |
25 @ 30-500 Hz |
Resolution/Threshold [µg] |
<1 |
<1 |
<1 |
<1 |
<10 |
Bandwidth [Hz] |
>300 |
>300 |
>300 |
>300 |
>300 |
Thermal Modeling |
|
4th Order |
|
3rd Order |
|
Electrical |
|||||
Input Voltage [VDC] |
±13 to ±18 |
±13 to±18 |
±13 to±18 |
±13 to ±18 |
±13 to ±18 |
Quiescent Current per Supply [mA] |
<16 |
<16 |
<16 |
<16 |
<16 |
Quiescent Power [mW] @ ±15 VDC |
<480 |
<480 |
<480 |
<480 |
<480 |
Physical |
|||||
Weight [grams] |
52.5 ±4 |
52.5 ±4 |
46 Nominal, 50 Max. |
46 Nominal, 50 Max. |
51 Nominal, 65 Max. |
Diameter below mounting surface [inches] |
Φ1.010 Max |
Φ1.010 Max |
Φ1.005 Max |
Φ1.005 Max |
Φ1.010 Max |
| Diameter of mounting hole [inches] | Φ1.07 ± 0.01 | Φ1.07 ± 0.01 | Φ1.045 ± 0.005 | Φ1.045 ± 0.005 | Φ1.045 ± 0.005 |
| Height - bottom to header [inches] | .780 Max | .780 Max | .820 Max | .820 Max | .790 Max |
Height - bottom to mounting surface [inches] |
.600 Max |
.600 Max |
0.560 Max. |
0.560 Max. |
0.617 Max. |
| Mounting Configuration | 3 pt Flange | 3 pt Flange | Round Flange | Round Flange | Round Flange |
Case Material |
300 Series Stainless Steel |
300 Series Stainless Steel |
300 Series Stainless Steel |
300 Series Stainless Steel |
300 Series Stainless Steel |
OUTLINE DRAWING |
Accelerometers exported from the United States must be done in accordance with the Export Administration Regulations (EAR) and/or the International Traffic in Arms Regulations (ITAR) as applicable.
