Honeywell produces the QAT (160C and 185C versions) and the MiniQ (150C, 185C and 200C) high temperature accelerometers for down hole measurement-while-drilling and wireline applications. These accelerometers utilize Crystal design,
the industry standard in Aerospace,ruggedized for high temperature use.
As with the entire Q-Flex accelerometer family, the QAT and MiniQ accelerometers feature a patented Q-Flex etched-quartz- flexure seismic system. An 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.
Kacise’s energy accelerometers also include a current-output internal temperature sensor. By applying temperature compensating algorithms,
bias, scale factor, and axis misalignment performance are dramatically improved.
Robust design and quality assurance provides superior reliability.
■■ Industry leading accelerometer performance at a competitive price
■■ Unparalleled domain knowledge
■■ Demonstrated reliability and robustness
Key Features:
■■ High temperature capability
■■ Environmentally rugged
■■ Analog output
■■ Square or round mounting flange options (QAT160/185 only)
■■ Field-adjustable range
■■ Internal temperature sensor for thermal compensation
■■ Low power electronics
■■ Built-in test
Model/Property | Input range | Bias | Residual Modeling Error | Scale Factor | Residual Modeling Error | Axis misalignment | One year repeatability | Vibration Rectification (50-500 Hz) | Threshold and Resolution | Bandwidth | Sine Vibration | Random Vibration | Shock | Operating | Survival (-40 to 70°) | Input voltage | Current | Power | Weight | Size | RSS Bias & Scale Factor – One-year Repeatability | Operating Temperatures | Survival Temperatures |
QAT160 | ±20 g | <20 mg | <450 µg | 2.75 mA/g ± 1.8% | <450 ppm | <3 mrad | <400 µrad | <±100 µg/g2 | <5 μg | <200 Hz | 30g peak,50 to 800Hz | 20 grms | 1000 g | 2000 g | ± 12.5 to ± 15.5 VDC | 6 mA per supply | 180m Watts | 55 grams | 1.0 in. dia. x 0.73 in. high | 1mg | 0 to 160°C | 175°C intermittent | |
QAT185 | ±20 g | <20 mg | <450 µg | 2.75 mA/g ± 1.8% | <450 ppm | <3 mrad | <400 µrad | <±100 µg/g2 | <5 μg | <200 Hz | 30g peak,50 to 800Hz | 20 grms | 1000 g | 2000 g | ± 12.5 to ± 15.5 VDC | 6 mA per supply | 180m Watts | 55 grams | 1.0 in. dia. x 0.73 in. high | 1.5mg | ‘-40 to 185°C | 200°C intermittent | |
Mini Q | ±20 g | <15 mg | <600 µg | 1.3 mA/g | <400 ppm | <6.5 mrad | 1 μg | 30 grms | 1000 g | 2000 g | ± 12 to ± 18 VDC | <25 grams | 0.79 in. dia. x 0.57 in. high | 1.8 mg | 0 to 150°C 0 to 185°C 0 to 200°C | -40°C to 215°C |