Sensors & Transducers e-Digest (S&TD)
No. 1, October 2000
European Temperature Sensors Market
"In the European automotive market, temperature sensors have key opportunities in such application as engine management (e.g., monitoring water/engine coolant temperature, oil temperature), electronically-controlled HVAC systems, and exhaust systems, notes Yole Development (Lyon, France, ++33-472-83-01-80). Particularly, over the long term (2005-2010), "new-generation" temperature sensors with an alert function will have growth opportunities in automotive engine management; and new-generation sensors that provide additional measurement functionality, along with temperature measurement, will have key business opportunities.
According to Strategy Analytics (Boston, MA, 781-235-6550) temperature accounted for 3.9% (or about $221 million) of the overall dollar-value automotive temperature sensor market in 1998; and in 2003, temperature sensors are expected to account for 3.3% (or $260 million) of the global automotive sensor market.
A major type of automotive temperature sensor is the thermistor that provides an analog signal which must be interpreted by an electronic control unit in order to actuate the relevant systems. Yole Development notes that the average price of a temperature sensor in the European automotive field is below $2.
Future application areas with significant potential for temperature sensors include safety & vehicle dynamics (water temperature), and body & convenience (air temperature). At present, engine management constitutes the major application for automotive temperature sensors in Europe.
Yole Development cites data from Frost & Sullivan that pegs the European automotive temperature sensor market at $86.2 million in 1998 (representing 51.8 million units) and project that the market will reach $89.6 million (representing 54.7 million units) in 2000, and $95.2 million (59.0 million units) in 2004. The growth in the European automotive temperature sensor market is partly due to increased vehicle production. European production of vehicles reached 16.93 million units in 1998, compared to 15.78 units in the prior year.
The aforementioned data indicates that Germany is the major national market for automotive temperature sensors in Europe (accounting for 32.4 % of revenues in 1998), followed in descending order by France, the UK, and Italy".
Full text of article "Automotive Temperature Sensors Have Key Applications in Europe" is published in Sensors Business Digest, August 2000, pp. 7-9.
Microcontroller's Enhance for Sensing Application
"Xemics (Neuchatel, Switzerland, ++41-32-720-5170/ Mountain View, CA, 650-428-0600) (www.xemics.com) offers ZoomingADC capability as a part of their ultra low-power XE88LC01 and XE88LC05 microcontrollers.
The ZoomingADC feature-the data acquisition block of the microcontroller - amplifies the input signal before converting it to a 16-bit code. The microcontroller includes the hardware required for direct interface with piezoresistive-type sensors. The CPU controls the data acquisition process and computers any required linearization. Signal output is accomplished through the UART, parallel port, or one of the D/A converters.
The ZoomingADC is able to separate the offset amplify the signal at the same time to provide a higher-resolution signal to the A/D converter. In, for example, bridge-type sensors, which have a small signal and a large offset, one can zoom-in on the part of the signal that is of interest so that the full resolution of the A/D converter can be applied to the signal. Typically, during calibration, the gain and offset are set in the microcontroller."
Full text of article "Xemics Enhances Microcontrollers for Low-Power and Sensing Applications" is published in Sensors Business Digest, August 2000, pp. 9-10.
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