Sensors based on surface acoustic waves have high sensitivity and good linearity, and are expected to be widely used in gas sensors. Usually, the measurement circuit is composed of an amplifier and a SAW device to form a SAW oscillator. The disturbance on the surface of the SAW device, such as the deposition of gas molecules on the sensor surface, causes the oscillation frequency of the SAW oscillator to change. The desired physical quantity can be obtained by measuring the change in frequency.
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OmniVision Technologies releases its first mobile phone front camera using RGBC sensor
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Driver for temperature and humidity sensor DHT11
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How have automotive sensors, cables, storage, connectors, and testing solutions evolved?
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Sensors that save lives: How semiconductors are changing automotive safety
As the world's population grows and more vehicles are on the road, improvements in traffic safety cannot come fast enough. Although the fatality rate has been reduced by more than half since 2000, from 135 to 64 per 100,000 vehicles, the total number of fatalities continues to climb. Today, 94% of accidents are attrib
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IR-connected sensors make temperature monitoring easy
This article describes the features of a low-power, internal
sensor
, temperature-to-period converter (MAX6576). It consumes only 140_A (power supply 2.7V to 5.5V), is packaged in a 6-pin SOT, and measures temperatures from -40°C to 125°C. Its output is a square wave whose period is proportional to the absol
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