Products for USB Sensing and Control
Products for USB Sensing and Control

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Sharp Distance Sensor (20-150cm)

ID: 3522_0
Recommended for new designs: This product is sourced from another supplier, but it (or a similar replacement with a compatible form, fit and function) is estimated to be available for as long as it is available from the supplier.

Using reflected IR light, measure the distance of an opaque object 20-150cm away.

$16.00 Quantity Available: 245 Qty Price 5$15.36
10 $14.72 25$14.40
50 $14.24 100$14.08

This popular sensor made by Sharp produces an analog output that varies from 2.5V at 20cm to 0.4V at 150cm.

Based on "typical values" from Sharp, the formula to translate output voltage ratio into Distance is:

Distance (cm) = 9.462/(VoltageRatio - 0.01692)

This sensor can find the distance to objects that present a very narrow edge such as a wall at a very sharp angle.

Note: The output of this sensor will vary from unit to unit, and based on the characteristics of the target (reflectance, size, direction of motion, and object alignment). Our formula is based on the data provided by Sharp. If you find that you are not getting good results with the standard formulas, you may want to derive your own formula to better characterize your situation.

Connection

The sensor plugs in the 1101 - IR Distance Adapter. See the Connection & Compatibility tab for details.

1101_0 $7.00 VoltageRatio Input Product Specifications Sensor Properties Sensor Type Distance (Infrared) Controlled By Sharp Adapter Sensor Output Type Ratiometric Measurement Distance Min 200 mm Measurement Distance Max 1.5 m Response Time Max 50 ms Electrical Properties Supply Voltage Min 4.5 V DC Supply Voltage Max 5.5 V DC Current Consumption Max 50 mA Physical Properties Weight 6 g Operating Temperature Min -10 °C Operating Temperature Max 60 °C Documents If you are not getting good results with the standard formula, have a look at the product datasheet which has good notes on what can affect the sensor's performance Accuracy All measurements are based on data provided by Sharp who used an r-27 calibration card, 90% reflectance. Based on our formula, we have calculated a minimum and maximum distance with the card at minimum and maximum distance. Projects Here's a full list of distance sensors to choose from: Product Sensor Properties Image Part Number Price Sensor Type Controlled By Measurement Distance Min Measurement Distance Max 1128_0$35.00 Distance (Sonar) VoltageRatio Input 152.4 mm 6.5 m
1146_0 $7.00 Distance (Infrared) VoltageRatio Input 1.5 mm 4 mm 3520_0$14.00 Distance (Infrared) Sharp Adapter 40 mm 300 mm
3521_0 $12.00 Distance (Infrared) Sharp Adapter 100 mm 800 mm 3522_0$16.00 Distance (Infrared) Sharp Adapter 200 mm 1.5 m
DST1000_0 $30.00 Infrared (Time-of-Flight) VINT 4 mm * 170 mm DST1200_0$25.00 Distance (Sonar) VINT 40 mm 10 m