The instrument is supplied with a small interface module to ease An SDI-12 instrument is simple to integrate with dataloggers. SDI-12 D-Opto has a very low power requirement, making it suitable for Designed for harsh conditions, both instruments feature aīiofouling control system to minimise the build up of bio-growth. Un-affected by sunlight, reducing the operation costs. D-Opto has no consumable replacements and is Additionally no oxygen is consumedĭuring the measurement cycle removing the necessity for mechanical Optical sensing technology is not only highly stable, but provides veryĪccurate and reliable longterm DO measurements not possible withĬonventional DO sensing technologies. That require long term dissolved oxygen measurements with minimal drift The D-Opto range includes the SDI-12 D-Opto, and the D-OptoLogger.īoth instruments have been specifically designed for long termĮnvironmental monitoring of dissolved oxygen in streams, rivers and lakes.
Ltd introduced the D-Opto range of optical dissolved Measurements and automation applications. NVH studies, aerospace tests, large structure studies, human movement Typical applications are found in vehicular
#Lasertrak process monitor series
A DC voltage supply of 6 to 16 Volts is required.Īccelerometers extend the measuring range of the series from 2 g and 10 g Both integral and unattached cable versionsĪre available. In addition to adhesive mounting, four 4-40 or M3 Members of the K-Beam accelerometer family measure tilt and other staticĪccelerometers are hermetically sealed and ground isolated in a welded Both use a micro-machinedĬapacitive sensing element that provides stability over the -40 oF Measures to 25 g and 8310A50 measures to 50 g. Slow moving measuring requirements from zero to 300 Hz. New accelerometers from Kistler Instrument extend the measuring range with Quan-Fang CHEN, Ming-Ren LIAN and Nen-Chin LIU Principles behinds these influences are presented and schemes of eliminating these influences are reviewed and proposed. Several environmental influence factors that affect SMO sensor’s performance, in terms of temperature variation, relative humidity and possibly others like light and oxygen partial pressure, are discussed in this paper. However, there are some challenges for theĬommercialization of SMO sensor to meet both performance-related and reliability-related requirements, especially false alarm problems caused by environmental induced drifts and shifts. Micromachined semiconductor metal oxide (SMO) gas sensors have good prospect of being solution as future gas sensor technology in terms of sensitivity, robustness, simple signal processing, low production cost and small size. On-line Magazine 'Sensors and Transducers' (S&T e-Digest)
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