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Platinum Sensor - Coggle Diagram
Platinum Sensor
Strain
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Strain gauges are bonded to a surface under stress, such as a beam, they flex in unison
Work in one direction, along the length of the wire
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Medical
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Electrochemical cell
Platinum is generally inert, making it useful as an electrode
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Potentiostat
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Op amps: Large gain, large input impedance, low output impedance, input terminals are at same voltage in negative feedback circuits (V- connected to output)
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Oxygen
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Nitrogen Oxide (NOx)
Measure oxygen levels in vehicle exhausts to ensure correct catalytic converter operation and optimal engine air-fuel ratio
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Air flow
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Designs
Heat a wire suspended in the air stream, as air passes through the wire cools and resistance decreases
Alternative design is a membrane sensor, with two temperature sensors either side of a heated thin film, can be manufactured on microscopic scale
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