LOAD AND HAUL
Quartz-based accelerometer These sensors can also help with
the testing of new machinery and component parts, to make them fit for demanding purposes and extend their life, with less investment. When maintenance is required, however, the appropriate sensor system helps predict the optimal point in time – before the occurence of a costly breakdown, replacement or accident.
CRITICAL ROBUSTNESS AND PRECISION Mining projects are frequently carried out in locations with extreme geological and climatic conditions, these might include deserts near the equator, polar circles, mountains, the ocean or rainforests. Therefore, beyond their precision and long-term stability, sensors utilised in these demanding settings must also be extremely robust. As such, the ASC OS series for
example, offers highly accurate uniaxial, biaxial and triaxial accelerometers to meet tough measuring tasks while enduring difficult conditions, according to the company. The sensors are based on two proven MEMS technologies and a capacitive operating principle. With available measurement ranges from ±2 g to ±400 g, the LN (Low Noise) models of the ASC OS series provide noise performance from 7 to 400 μg/√Hz. Their high signal-to- noise ratio, in particular, is required to demand the smallest frequencies and amplitudes. The MF (Medium Frequency) accelerometers provide measurement ranges from ±2 g to
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MEMS accelerometer
±200 g while featuring a wide frequency response range of 0 Hz to 7 kHz (±3 dB), the design is robust with shock resistance of up to 6,000 g. In addition, the integrated electronic circuitry enables a differential analog voltage output of ± 2.7 V (FSO, MF) or ± 4.0 V (FSO, LN) and flexible power supply voltage from 5 (MF) or 6 (LN) to 40 VDC.
DIVERSE APPLICATIONS IN CHALLENGING SETTINGS With operational temperatures ranging from -40 °C to +100 °C, the ASC sensors feature stainless- steel housings with protection class IP68 and an integrated cable of configurable length with connectors. This compact, hermetically sealed housing has been designed to make the OS series suitable for tough applications and environments, such as mining or geothermal energy drilling as well as other deep and surface drilling, high-frequency sheet pile vibrating/driving, ramming, pressing, hydraulic hammering, trench cutting or soil mixing techniques.
KNOW THE DRILLING PATH In all these endeavors, the use of appropriate sensor technology to ensure precise results is of crucial importance. Knowing exact drilling paths or working patterns, and keeping neatly to them, is essential. This is also true of shock and heat resistance, to prevent strong vibrations and high temperatures from skewing measurements and outcomes.
QUARTZ-BASED SENSOR SOLUTIONS In addition to its own capacitive sensor solutions, ASC also represents high- performance servo quartz-based accelerometers manufactured by Japan Aviation Electronics Industry, Ltd (JAE). These, too, feature high temperature ranges, significant shock and vibration resistance as well as low/ medium measurement ranges. Their resolution of 1 µg, low noise and long-term stability of scale factor and bias makes them ideally suited for inclination measurement and other high- demand applications in mining and geological drilling, according to ASC. A partnership with the company
means that clients now benefit from the combined portfolio of inertial sensor solutions as well as ‘thorough customer service’ this is conducted through one supplier, which helps to add business value and minimise risks for mining operators and adjacent sectors.
AUTHOR: The author, Oliver Stohlmann, is a global communications leader with more than 20 years’ experience of working for several of the world’s premier life-science corporations.
For more information visit:
www.asc-sensors.de
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