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27 May 2015

SMA130

Bosch’s new SMA130 triaxial acceleration sensor provides information for infotainment and telematics applications in vehicles. “Until now, automakers have mainly used data from acceleration sensors for safety systems,” says Dr. Frank Schäfer, head of product management for automotive MEMS sensors. “The SMA130, on the other hand, delivers the data needed for eCall emergency notification and navigation systems.” The sensor measures acceleration along three axes arranged at right angles, as well as inclination, movement, vibration, and shock. The new Bosch acceleration sensor, based on MEMS technology, will go into series production in late 2015.

Acceleration sensor for infotainment systems – [Link]

19 May 2015

obr1702_uvod

±2% accuracy in a whole range of relative humidity measurement – that´s just one of several improvements brought by the third generation of miniature calibrated sensors from company Sensirion.

Even the actual series like SHT1x and SHT2x belong to a top in this segment. Forthcoming series SHT3x (SHT30, SHT31 and soon also SHT35) addresses mainly those of you, requiring maximum accuracy even in limit values (humidity below 10% and above 90%), miniature dimensions and ultra low power consumption. So a main difference of a new SHT31 compared to SHT21 is, that a typical +-2% is maintained in a whole range. Together with a precise temperature measurement in element we still have a possibility to simply compute a dew point, what´s one of the key parameters for ventilation control (HVAC, heat recovery). If it´s “only” necessary to guide a humidity not to exceed certain level, then you´ll probably also use the output „Alert“ pin, able to start interrupt in a host MCU for instance or directly control further devices. Output of the SHT3x sensor is the linearized value, which can be easily transformed to a final value (%RH, °C).SHT31 is available in 2 versions – SHT31-DIS-B with a digital output via well-proven I2C bus (2 selectable addresses) and also in a version SHT31-ARP-B with a linearized analogue (proportional) output. That´s why SHT31-ARP-B is an interesting alternative for direct processing in analogue circuits, as it contains 2 independent outputs with output voltage of 10-90% Vdd, responding to 0-100%RH and -45 to +130°C temperature. Digital output version also features wide possibilities of setting regarding measurement frequency, communication speed and other parameters.

Detailed information will provide you SHT3x-ARP and SHT3x-DIS datasheets. Comparison of particular series will provide you the „Sensirion_Humidity” flyer.


Even the humidity & temperature sensors can be “3G” – [Link]

12 May 2015

inspiration-kit-mainboard

by Susan Nordyk:

Novelda offers two noncontact sensor modules—one for monitoring respiration and the other for detecting human presence at a range of up to several meters— for use in home automation, sleep monitoring, baby monitoring, and elderly care applications. Both sensors employ the company’s XeThru technology, which uses radio waves to “see through” a variety of objects, including lightweight building materials and blankets.

The XeThru X2M200 sensor module for respiration monitoring measures both the rate and depth of breathing to allow breathing patterns to be tracked in real time. With a sensor range of 0.5 m to 2.5 m, the X2M200 provides a reliable but nonintrusive way to monitor respiration and movement, capturing breathing patterns and frequency without being blocked by blankets or other obstacles.

Noncontact sensors monitor respiration and movement – [Link]

11 May 2015

Sensors Experiments

PyroEDU began in 2012 with the mission of offering free online courses teaching the fundamentals of electrical engineering in an approachable and entertaining manner. Rather than studying textbooks and advanced mathematics, students are taught using a learn-by-doing approach that follows four basic steps: introduce the topic, explain the theory, build an experiment to demonstrate the theory, and offer real-world examples to demonstrate how the topic is utilized today. Students can interact with other students and the instructor via the PyroEDU forums or by joining one of PyroEDU’s hosted classrooms on uReddit or P2PU.

PyroEDU is currently teaching its sixth course, An Introduction to Sensors, covering a wide variety of sensors from motion detectors to temperature sensors. This sixth course is the capstone in the Introductory Series of courses PyroEDU offers (visit http://www.pyroelectro.com/edu/ for a complete listing of courses in the Introductory Series). Working with The Gadgetory, an online electronics retailer, PyroEDU will be offering a comprehensive kit that includes all the parts necessary to complete the Introductory Series of courses. More advanced series are planned in the future which may include courses in animatronics and robotics.

An introduction to sensors – [Link]

 


14 Apr 2015

Imagex600

by Steve Taranovich @ edn.com:

Gas sensing techniques are continually being investigated to improve selectivity and sensitivity of identifying different types of gases. There are resistive gas sensors, quartz crystal microbalance, direct thermoelectric, electrochemical cell and other exotic types such as MEMS-tunable Fabry-Perot filter spectral sensors with lead-selenide detector and pulsed broadband infrared emitter light source. The ams sensor is a resistive type.

The resistive sensor design relies upon heating circuitry for temperature control of the entire system. There are different types of resistive gas sensor techniques and construction. Some are based upon metal-oxide (MOX) thin films which are small in size, low-cost, and low power as well as able to use low-power integrated analog front ends.

ams develops MEMS VOC gas sensor – [Link]

2 Apr 2015

MicrochipMotionModule

by elektor.com:

The 17 mm square MM7150 Motion Module from Microchip Technology is a complete, small form-factor board containing a 3-axis accelerometer, 6-axis digital compass and gyroscope sensors pre-programmed with integrated calibration and sensor fusion algorithms. Connections to the board include I2C, power and ground. The board operates at 3.3 V and consumes about 7.68 mA in active mode and around 70 µA in deep sleep.

Features:
Read position & motion data over I2C
Small size 17×17
Pre-programmed and calibrated
Single sided – can be soldered down
SSC7150 motion coprocessor with integrated sensor fusion
9-axis Sensors (accelerometer, magnetometer, gyroscope)

Tiny Card Deals with your Motions – [Link]

27 Mar 2015

Fig_2_Eng

TCS3490 intelligent color sensor’s accurate measurement of color temperature and ambient light intensity enables sophisticated display color management control for smartphones, tablets, notebooks and digital still cameras

ams AG released the TCS3490, a color sensor for portable devices which is ideally suited for light source detection when operating under a wide range of light sources.
Providing accurate color and light intensity measurements, the TCS3490 enables designers of portable devices such as smartphones and tablets to implement more sophisticated display management and brightness control.

This integrated five-channel color sensor has extremely accurate measurements of the Correlated Color Temperature (CCT) of light. As sensors continue to proliferate in today’s mobile electronics market, manufacturers of mobile devices such as smartphones, tablets and laptops can use these measurements to dynamically adapt the display’s color palette to provide the user with a superior viewing experience.

AMS color sensor for mobile devices improves accuracy and offers new light source detection capability – [Link]

27 Mar 2015

pir_sensor

Motion sensing is the detection of the change in position of an object relative to its surroundings or vice versa. There are many kinds of motion detector methods: infrared, optics, radio frequency, sound, vibration, and magnetism. These methods differ from each other because each of them uses a different medium and detects different subject (e.g. sound: in Doppler effect, motion is detected by the change in reflected frequency).This project uses PIR (passive infrared) sensor to detect the change in radiation, this can be use on lighting control, temperature control, and motion detection since all objects with temperature above absolute zero emits heat energy in the form of radiation. The term passive refers to the fact that PIR devices do not generate or radiate any energy for detection purposes. It works entirely by detecting the energy given off by other objects.The D204B PIR sensor is used in this project, it contains a material that generates energy when exposed to heat/radiation. The MCP6H94 quad op-amp is used in two stages; amplifier and comparator. The weak signal from the PIR sensor will be amplified by the first two op-amp configured as amplifiers, the amplified signal is then fed to the last two op-amp configured as comparator. The BC548 NPN transistor acting as the switch will be triggered when the comparator’s output gets HIGH, further, switching the transistor will also trigger the relay that is connected to the load (light and/or alarm).

PIR Motion Sensor – [Link]

20 Mar 2015

obr1378_3

With Sensirion humidity and temperature sensors you can be sure of what you measure. Moreover, now we´ll support your development by free samples.

Top-class calibrated humidity and temperature sensors Sensirion already gained many fans. Mainly thanks to a fact, that they´re not only “sensors” but a ready-made solution with a pre-amplifier, ADC and other circuits, which directly provide a final value in a digital form. That´s why it´s not necessary to solve input portion (noise, shielding, power supply, length of wires,…). Moreover, their long-term stability is verified in a praxis.

Features and usage of Sensirion sensors was introduced to you in many our articles. In the Sensirion portfolio can be found easily solderable types on a small PCB like for example SHT11(15) or SHT71 (75), as well as miniature types in SMT DFN packages like for example SHT21 (25) and also the new SHTC1. Small DFN package is practically impossible to solder manually, but it´s relatively easily manageable by means of a solder paste and a hot-air soldering station or ideally by a reflow in a hot-air oven.

Maybe, you´ve already noticed, that in many articles we also bring you a contest with a possibility to win free samples of a given component. We usually draw by lots 1-10 winners, which will directly receive free samples.

Still, if you´re seriously interested to try a given sample for a development of your (industrial) application, please contact us by e-mail. In many cases, we can provide you a given sample even if you wasn´t one of lucky winners of the contest.

Evaluate the Swiss precision for free! – [Link]

18 Mar 2015

Pressure_Sensor_DPS310

Infineon Technologies has launched an ultra-high ±5 cm resolution, miniature MEMS (Micro Electro Mechanical Systems) pressure sensor for use in mobile and wearable gadgets and IoT (Internet of Things) devices. The DPS310 is a low-power digital barometric pressure sensor that enables the development of new and enhanced navigation, location, well-being, gesture recognition and weather monitoring applications.

Delivering accurate and stable performance across a wide temperature range, the DPS310 is ideal for indoor navigation and assisted location applications – such as floor detection in shopping malls and parking garages – and outdoor navigation where it can help to improve navigation accuracy or support ‘dead reckoning’ when GPS signal is not available. In addition, the ability to provide accurate data for calculating elevation gain and vertical speed suits activity tracking in mobile and wearable health and sports gadgets, while ultra-precise pressure measurement opens up new possibilities for gesture recognition and the detection of rapid weather changes.

Low-Power Barometric Pressure Sensor from Infineon Delivers New Levels of Accuracy – [Link]



 
 
 

 

 

 

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