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MEMS technologies & environmental sensors Inclination and tilt sensors targets heavy industry MEMSIC Inc.’s MTLT series of inclination and tilt sensors are appropriate for a wide range of static and dynamic applications in construction and industrial markets such as boom tilt monitoring, bucket loader roll back protection, PV/CSP solar tracking systems and others. Samples of the first three family members in MTLT series, the MTLT110S-R, MTLT105SR and MTLT105D-R are currently available for evaluation. All three products of the series are IP67 rated inclinometers with an integrated RS-232 interface and flying lead cable operating from a 9 V to 32 V single supply. The MTLT105S and MTLT110S are designed for applications needing less than 0.5 degree and less than 1.0 degree accuracy, respectively, over the full operating temperature range. The MTLT sensors also include programmable tilt alarms for tilt safety applications. The alarm can be programmed to be triggered to activate when the tilt exceeds a specified threshold. The tilt alarm can also be used to lock out controls or trigger an alarm or warning light. It is an all-in-one tilt safety solution eliminating the need for an external microprocessor to interpret tilt angles. The MTLT family achieves the best price and performance by utilizing Micro Electro-Mechanical System (MEMS) sensors, extensive over temperature calibration, and MEMSIC’s SmartSensing technology providing users with unmatched sensor fusion and performance in critical motion sensing applications. Each unit is fully calibrated over temperature providing confidence in safety applications. MEMSIC www.memsic.com Ultrasound proximity software replaces hardware-based sensors Elliptic Labs has launched a software-based ultrasound proximity sensing solution that relies on the smartphones’ speaker and microphone to replace today’s optical proximity sensors. Beauty, as the ultrasonic software is called, allows for more aesthetically pleasing designs since it removes the need for optical proximity sensors, which themselves typically require one rectangular black shape or two small holes on the screen. Enabling always-on gesture detection, the solution also frees up physical space inside mobile devices. “It works very similar to how bats use echolocation to navigate. The Ultrasound signals are sent through the air from a smartphone’s current earpiece and bounce against one’s head and are recorded by the smartphone’s microphone. In this way, Elliptic Labs’ software engine converts the ultrasound signals into command actions and for the Beauty product case -to turn off/on the screen. Our Beauty product only requires one earpiece and one microphone currently available in all smartphones”, explained Elliptic Labs’ CEO, Laila Danielsen. The company’s Beauty product maps its proximity readings to standard sensor service in Android, thus requiring no additional user interface. But detection range goes up to 2m, enabling high-resolution touchless gestures near, far, and all around the sides of a device screen at 180 degrees. The software also comes with an extended library of gestures and application samples, including scrolling and multi-layered interaction. Elliptic Labs www.ellipticlabs.com ST offers infrared time-of-flight sensor STMicroelectronics has launched a time-of-flight ranging sensor for autofocus, proximity sensing and object detection in robotics, drones and IoT applications. The company claims the VL53L0 is the smallest time-of-flight (ToF) module in the world and the first to use a 940nm infrared light source. One results is that the VL53L0 can range faster, over longer distances, and more accurately than previous members of ST’s FlightSense family. The unit integrates a 940nm wavelength VCSEL light source and a single photon avalanche diode (SPAD) detector as well as microcontroller to implement digital detection algorithms. The unit measures 4.4mm by 2.4mm by 1mm. It can perform a measurement operation in typically less than 30ms at distances of greater than 2m. The VL53L0 module includes an I2C interface and comes with API drivers. STMicroelectronics www.st.com www.electronics-eetimes.com Electronic Engineering Times Europe February 2016 45


EETE FEB 2016
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