QAT and Mini Q Energy Accelerometers
Honeywell produces the QAT (160C and 185C versions) and the Mini Q (150C, 185C and 200C) high-temperature Energy Accelerometers for down hole measurement-while-drilling and wireline applications. High temperature accelerometers are designed to survive in extreme heat or cold environments and require precise acceleration information like drilling. These accelerometers and pressure sensors provide critical data that prevents failures and reduces downtime. Honeywell’s Q-Flex design is ruggedized for high temperature and specifically customized for the demands of oil and gas applications. QAT and Mini Q products feature 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 Q-Flex electronics develop 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.
Honeywell’s Q-Flex design is ruggedized for high temperature and specifically customized for the demands of oil and gas applications. QAT and Mini Q products feature 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 Q-Flex electronics develop 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.
Specifications
| Performance: Bias | <15 mg (Mini Q), <20 mg (QAT) |
| Performance: Bias - Residual Modeling Error | <450 μg (QAT), <600 μg (Mini Q) |
| Performance: Vibration Rectification | < ± 100 µg/ g^2 (QAT) |
| Performance: Resolution/Threshold | <1 µg (Mini Q), <5 µg (QAT) |
| Performance: Vibration Peak Sine | 30g peak, 50 to 800Hz (QAT) |
| Performance: Scale Factor | 1.3 mA/g (Mini Q), 2.75 mA/g ± 1.8% (QAT) |
| Performance: Key Benefits | Low-power electronics, Temperature-compensating algorithms dramatically improve bias, scale factor, and axis misalignment performance |
| Performance: Bandwidth | <200 Hz (QAT) |
| Performance: Models | MiniQ 150, MiniQ 185, QAT 160, QAT 185 |
| Performance: Shock | 1000 g (Mini Q) (Operating), 1000 g (QAT) (Operating), 2000 g (Mini Q) [Survival (-40 to 70°)], 2000 g (QAT) [Survival (-40 to 70°)] |
Tell us your accuracy, environment, and integration requirements and we'll recommend the right board and correction approach.