Distance measurement with optical distance sensors
Distance sensors based on optical triangulation. The components work with one or more infrared LEDs and a receiver chip, the so-called PSD. This is a 4-layer semiconductor component that generates different currents depending on the angle of incidence of the infrared beam reflected by the object. These currents are then related to a reference by the downstream electronics and output at the output pin as a degressive analog voltage. Thus, a stepless distance measurement is possible. The color of the object does not play a role. The surface condition is also uncritical to a certain degree.
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PSD
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1-bit digital output according
to distance measuring
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13 cm
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1-bit digital output
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GP2Y0D413K0F
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Analog voltage output
according to distance measuring
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24 cm
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1-bit digital output
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GP2Y0D21YK0F
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80 cm
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1-bit digital output
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GP2Y0D02YK0F
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1.5 to 15 cm
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Analog output
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GP2Y0AF15 series
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2 to 15 cm
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Analog output
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GP2Y0A51SK0F
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4 to 30 cm
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Analog output
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GP2Y0A41SK0F /
GP2Y0AF30 series
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10 to 80 cm
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Analog output
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GP2Y0A21YK0F
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20 to 150 cm
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Analog output
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GP2Y0A02YK0F
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