Gas Detection 31
Alphasense to Launch Smart Sensor Technology
Alphasense, the leading gas sensor manufacturer for safety and industrial markets, launches new smart sensor technology for its electro-chemical sensors. The AFE (Analogue Front End) is a programmable device for use in micro power electro-chemical sensing applications. It is intended to be used with the sensor, creating a “smart sensor”. It is designed for three-electrode single gas sensors and for two electrode oxygen sensors. This device provides all of the functionality for detecting changes in gas concentration based on a delta current at the working electrode, and generates an output voltage proportional to the cell current.
Enhanced Performance Oxygen Sensors
Alphasense (UK), are pleased to announce their latest Oxygen Sensors, currently exempt from the Restriction of Hazardous substances (RoHs) directive, they have been improved to maintain the lowest warranty returns within the safety and industrial markets.
This latest development of oxygen sensors comprising the standard 20mm A-Series of 1, 2 or 3 year warranty. Also a lower height G-Series for slim-line portable applications and the taller C-Series developed for Stack
and Flue gas applications both with either 1 or 2 year warranty will soon be joined by a new 3-electrode electro-chemical Oxygen sensor with longer life. Alphasense is exploring additional technologies for lead free Oxygen sensing that will be RoHs compliant including Solid State, Optical, and Nano-Technology.
For More Info, email:
21895pr@reply-direct.com
Transimpedance gain is user programmable through an I2C® compatible interface from 3.4kOhm to 440kOhm making it easy to convert current ranges from 5 A to 650uA full scale. Optimised for micro-power applications, the AFE works over a voltage range of 2.7V to 5.5 V. The cell voltage is user selectable using the on board programmability. A temperature sensor is embedded and it can be power cycled through the interface, the output of this temperature sensor can be read by the user through the ‘Out’ pin. Together with the coefficients stored in the on board EEPROM, this information can be used to compensate for the sensor sensitivity drift over temperature.
Additionally user controlled sensor test will be
implemented. The tests the sensor for proper connection (all 3 terminals) as well as proper function.
Depending on
configuration, total current consumption for the device can be less than 10 A running, for power savings transimpedance amplifier (TIA) can be turned off and
instead a load impedance equivalent to the TIA’s inputs impedance is switched in.
Arthur Burnley, Sales & Marketing Director commented, “We are continually developing new technologies especially with respect to electronics and have been working with Semi-conductor manufacturers to provide Smart Sensor Technology that will ease the development and reduce time to market for OEM’s and system builders by providing a ‘smart’ interface to our electro-chemical sensors. This is a further example of developments making a positive contribution to the protection of life in challenging environments. Supporting our customers is one of our highest priorities and the Alphasense team has many decades of design, Manufacturing and Application experience. We are not only improving our products continuously, but also our internal procedures and processes to ensure we offer the highest possible levels of Customer Support”
For More Info, email:
27048pr@reply-direct.com
email:
338ad@reply-direct.com
www.envirotech-online.com IET September / October 2013
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68
