Sensors & transducers flow converters
The ScioSense tool suite for its latest AS6031 and AS6040 ultrasonic flow sensors includes a dedicated dev board and evaluation software that gives designers almost instant measurement outputs of new projects.
the development of utility meters and other applications for its latest AS6031 and AS6040 ultrasonic flow converters (UFCs). The new development tools include general-
S
purpose or microcontroller-specific boards, and evaluation software which provides an intuitive GUI for sensor configuration and for the display of measurement outputs. In a system consisting of ultrasonic transducers
and spool piece (tube), both the AS6031 and the AS6040 UFCs provide precise measurements of time-of-flight that convert into flow rate of gas or water. The UFC Evaluation Software supplied with the ScioSense evaluation kits provides an easy-to-use framework for configuring transducer and spool piece settings, enabling developers to start acquiring flow rate data from the sensors quickly after powering up the sensor board. The software displays the measurement results in either a graphical or numerical format. Developers can also choose to use a wizard to
guide them through the settings. Data can be exported for subsequent data analysis in other tools. The UFC Evaluation Software is supplied free
with any of the evaluation boards for the AS6031 and AS6040. Stand-alone evaluation kits, the AS6031-QF_DK and AS6040-QF_DK, include a PICOPROG USB programming interface and
cioSense, a manufacturer of integrated environmental and flow sensors, has released a new tool suite which accelerates
cables. ScioSense also supplies Nucleo shields (demoboards) which are compatible with any STMicroelectronics STM32 microcontroller family. The AS6031-QF_NUC and AS6040- QF_NUC boards are supplied with sample code for communication with STM32 microcontrollers, including libraries for configuration download, initialisation and data readout. Norbert Breyer, product marketing manager
for ultrasonic flow converters at ScioSense, says: “The combination of evaluation boards and evaluation software provide a convenient platform for users to integrate an AS6031 or AS6040 ultrasonic flow sensor instantly into their measurement set-up. This means that, instead of wasting time on basic system configuration, they can focus on characterising the operation of their application over the range of flow rates and ambient temperatures.” The AS6040 and AS6031 ultrasonic flow
converters with integrated 32-bit CPU core include all the functions required to drive a pair of external transducers, and to convert ultrasonic time-of-flight measurements to a calculation of the rate of flow. The sensors are notable for their low power consumption, high accuracy, and high sensitivity. The AS6031 and AS6040 evaluation kits are
available for purchase directly from ScioSense or from authorised distributors.
ScioSense
www.sciosense.com Breaking the size Barrier in CO2 sensing Sensirion’s distribution network. Compared S
to its predecessor, the SCD4x CO2 sensor is seven times smaller and offers many more disruptive features. High levels of carbon dioxide (CO2)
compromise humans’ cognitive performance and well-being. Thanks to new energy standards and better insulation, houses have become increasingly energy efficient.
However, CO2 produced by the human metabolism can accumulate rapidly.
Therefore, CO2 is a key indicator for indoor air quality. Measuring indoor CO2 concentration enables smart ventilation systems to regulate ventilation in the most
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ensirion has announced the global availability of its drastically miniaturised CO2 sensor through
energy-efficient and human-friendly way. Moreover, indoor air quality monitors and other connected devices can help to
maintain a low CO2 concentration for a healthy, productive environment. The SCD4x series is Sensirion’s next-
generation miniature CO2 sensor that offers the smallest size combined with an
unmatched price-to-performance ratio. The series consists of the SCD40 and SCD41
CO2 sensors. Both sensors are built on the photoacoustic sensing principle and Sensirion’s patented PASens and CMOSens Technology to enable unmatched small sensor size combined with high performance. The SCD40 offers an accuracy of ±(50 ppm + 5% of reading) at 400–2,000 ppm, while the SCD41 has an accuracy of
±(40 ppm + 5% of reading) at 400– 5,000ppm. In addition, the SCD41, featuring a low-power mode, is perfectly suited for
applications with a limited power budget.
www.sensirion.com
tool suite for ultrasonic
May 2021 Instrumentation Monthly
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