Distance and Measurement Sensors
SICK DS35-B15221 Sensor
SICK DS35-B15221 ultrasonic distance sensor, part 1057655. Detects transparent, shiny and dusty targets where optical sensors reach their limits.
Overview
The SICK DS35-B15221 (part number 1057655) is an ultrasonic distance sensor. It measures the distance to objects and surfaces using inaudible sound waves, which makes it insensitive to color, transparency and gloss. It is the reliable choice where optical sensors reach their limits, for example on shiny foils, clear liquids or dusty environments.
How It Works
The sensor emits an ultrasonic pulse and measures the time until the echo returns from the target. From this runtime it calculates the distance and switches or transmits the value. Because sound reflects from nearly any solid or liquid surface, detection does not depend on optical properties at all.
Key Features
- Ultrasonic runtime measurement, independent of color and transparency
- Reliable on liquids, foils and shiny surfaces
- Insensitive to dust and fog in the measurement path
- Background suppression behavior by distance evaluation
- Part number 1057655
- Compact housing for machine integration
Typical Applications
- Level detection in tanks with transparent or reflective liquids
- Double-sheet detection where optical sensors struggle
- Presence detection on shiny plastic packaging
- Distance monitoring in dusty material handling
- Fill and empty detection on processing equipment
Specifications
Attribute | Value |
|---|---|
Model | SICK DS35-B15221 |
Part number | 1057655 |
Detection principle | Ultrasonic distance measurement |
Family | DS35 ultrasonic distance sensors |
Installation and Setup Notes
Mount the sensor so the sound cone travels unobstructed to the target; avoid brackets and cables inside the cone. Soft, sound-absorbing materials such as thick foam reduce the echo, so verify switching with the actual product. Temperature changes shift the speed of sound slightly, which the sensor compensates for within its specification.
Frequently Asked Questions
Can the DS35 detect transparent film?
Yes. Ultrasonic sensing does not depend on transparency, which is exactly why it is used where photoelectric sensors fail.
Does it work on liquids?
Yes, liquid surfaces reflect sound well, making level detection a typical application.
What about foamy surfaces?
Heavy foam can absorb the ultrasonic echo; test with the actual medium before final installation.
Related Distance and Measurement Sensors
For cylindrical ultrasonic sensors, see the SICK UM12-1192271. For the rectangular UM30 family, see the SICK UM30-213118.
