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Distance Sensor Manufacturer,Supplier and Exporter in India

Q: How quickly does the reading update?

The response time is 38 +/- 10 ms. That is fast enough for a trolley or a hand moving in front of it, but a quick object can travel some distance between two readings.

Product Code : EL-TWL-9191
Jlab Export is a leading Distance Sensor Manufacturer,and suppliers in India

This infrared distance sensor gives an analog voltage that changes with the distance to a target between about 10 cm and 80 cm. It has three connections, for power, ground and output, runs on 4.5 V to 5.5 V and draws about 30 mA on average. The output goes straight to an analog-to-digital converter or to a comparator.

Specifications

Sensing	Infrared
Distance measuring range	10 cm to 80 cm (4 in to 32 in)
Output type	Analog voltage
Output voltage change over the range	1.9 V
Operating voltage	4.5 V to 5.5 V
Average current consumption	30 mA
Response time	38 ± 10 ms
Connections	3, left to right: power, ground, output signal
Weight	3.5 g (0.12 oz)
Minimum order quantity	5 units
Dispatch time	Usually 7–10 working days
Manufacturer	JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India

Practicals with the Distance Sensor

The first practical is a calibration curve. Students place a white card at marked distances along a Meter Scale 100 cm and read the output on a Digital Multimeter. Plotting voltage against distance shows that the output does not change in a straight line, so later readings are converted with this graph.

For motion work, the sensor sits at one end of a Trolley Runway and faces a card fixed to a Dynamic Trolley. Logged readings give a distance against time graph as the trolley rolls within range. Electronics classes feed the output to a comparator, so a buzzer or lamp switches on when an object comes closer than a set distance.

Frequently Asked Questions

What happens if the target is closer than 10 cm?
The reading stops making sense. Inside its minimum distance an infrared sensor of this kind gives a falling output again, so a very close object can look like a distant one. Mount the sensor so targets cannot come nearer than 10 cm.

How do I turn the output voltage into a distance?
Use a calibration graph or a table made with the target at known distances. Over the full range the output changes by about 1.9 V, and the steps between readings are not equal, so a single scale factor will not work.

How is the sensor wired?
Looking at the connector, the pins from left to right are power, ground and output signal. Supply 4.5 V to 5.5 V and take the output to an analog input of a microcontroller or logger. Three wires can also be soldered directly where the connector pins are mounted.

How quickly does the reading update?
The response time is 38 ± 10 ms. That is fast enough for a trolley or a hand moving in front of it, but a quick object can travel some distance between two readings.

Which targets give the steadiest readings?
Flat, light-coloured, matt surfaces reflect infrared well. Very dark, glossy or angled surfaces return less light, and strong sunlight on the target can disturb the output.