| Switching frequency max. | 300 Hz |
| Switching output | PNP |
| Switching function | Antivalent |
Ring sensors / ring light barriers
Ring sensors or ring light barriers are optical sensors for detecting objects. They consist of a ring with a series of transmitter and receiver units that align the ring on the inside and outside.
The transmitter generates a light signal that is directed at the object to be detected. The light signal is reflected by the object and registered by the receiver unit. The ring is used to guide the light signal around the object so that it can be detected from all sides.
Ring sensors or ring light barriers are used in many applications, such as the automotive, electronics and medical industries. They can be used to detect the presence of objects on a conveyor belt, to monitor manufacturing processes or as part of safety systems.
Modern ring sensors or ring light barriers can also use digital displays and can be linked to other systems, such as an automatic control system, to optimise the production process and increase efficiency.
Ring sensors are an effective and accurate means of detecting the presence of objects in a given area and can be used in many applications.
... Read more
The transmitter generates a light signal that is directed at the object to be detected. The light signal is reflected by the object and registered by the receiver unit. The ring is used to guide the light signal around the object so that it can be detected from all sides.
Ring sensors or ring light barriers are used in many applications, such as the automotive, electronics and medical industries. They can be used to detect the presence of objects on a conveyor belt, to monitor manufacturing processes or as part of safety systems.
Modern ring sensors or ring light barriers can also use digital displays and can be linked to other systems, such as an automatic control system, to optimise the production process and increase efficiency.
Ring sensors are an effective and accurate means of detecting the presence of objects in a given area and can be used in many applications.
... Read more
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| Switching frequency max. | 300 Hz |
| Switching output | PNP |
| Switching function | Antivalent |
| Switching frequency max. | 300 Hz |
| Switching output | NPN |
| Switching function | Antivalent |
| Switching frequency max. | 300 Hz |
| Switching output | NPN |
| Switching function | Antivalent |
| Target size Ø | 4 mm |
| Measurement principle | Inductive |
| Ring inner diameter | 25 mm |
| Part speed, max. / < | 60 m/s |
| Target size Ø | 9 mm |
| Pulse stretching | 2.5 to 250 ms |
| Target size Ø | 4 mm |
| Pulse stretching | 0.1 to 150 ms |
| Measurement principle | Inductive |
| Part speed, max. / < | 60 m/s |
| Target size Ø | 2 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 60 m/s |
| Target size Ø | 3 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 2 mm |
| Pulse stretching | 10 to 150 ms |
| Part speed, max. / < | 25 m/s |
| Target size Ø | 2.5 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 2.5 mm |
| Pulse stretching | 10 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 0.6 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 25 m/s |
| Target size Ø | 5 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 4.5 mm |
| Pulse stretching | 10 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 1 mm |
| Pulse stretching | 10 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 0.6 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 0.8 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 0.8 mm |
| Pulse stretching | 0.1 to 150 ms |
| Part speed, max. / < | 35 m/s |
| Target size Ø | 1 mm |
| Pulse stretching | 0.1 to 150 ms |
A distinction is made between ring sensors with static and dynamic evaluation.
Static evaluation
Ring sensors with static evaluation detect moving and stationary objects.
Dynamic evaluation
In ring sensors with dynamic evaluation, detected objects generate a pulse. The metal parts must move in the sensor. Ring sensors with dynamic evaluation offer higher sensitivity and detect even the smallest objects with high part speeds.
Analog ring sensors
Analog ring sensors have an analog signal output. This signal depends on the size of the object in the ring sensor. Fields of application are e.g. the differentiation of small parts according to the object size. Objects with different shapes are also detected by the ring sensor.
Ring light barriers
Ring light barriers, also called optical ring sensors, detect metallic and non-metallic small objects. The objects to be measured are fed to the ring light barrier in transparent feed tubes. The ring light barriers are also used without hose feed, e.g. for yarn monitoring.
Static evaluation
Ring sensors with static evaluation detect moving and stationary objects.
Dynamic evaluation
In ring sensors with dynamic evaluation, detected objects generate a pulse. The metal parts must move in the sensor. Ring sensors with dynamic evaluation offer higher sensitivity and detect even the smallest objects with high part speeds.
Analog ring sensors
Analog ring sensors have an analog signal output. This signal depends on the size of the object in the ring sensor. Fields of application are e.g. the differentiation of small parts according to the object size. Objects with different shapes are also detected by the ring sensor.
Ring light barriers
Ring light barriers, also called optical ring sensors, detect metallic and non-metallic small objects. The objects to be measured are fed to the ring light barrier in transparent feed tubes. The ring light barriers are also used without hose feed, e.g. for yarn monitoring.
What are ring sensors / ring light barriers and what are they used for?
Ring sensors or ring light barriers are optical sensors that consist of a light source and a light detector placed in a ring around a cylindrical object. The ring emits light, which is reflected by the object and then detected by the detector.
Ring sensors are used in industry for various purposes, for example to detect objects, determine position or monitor movements. They can also be used in automation technology to monitor the flow of objects on a conveyor belt or to detect the presence or absence of objects in a specific area.
Another area of application for ring sensors is measurement technology, where they can be used to measure distances, thicknesses or diameters. As they enclose a cylindrical object, they are particularly useful when it is difficult to point the sensor directly at the area to be measured.
Ring sensors are used in industry for various purposes, for example to detect objects, determine position or monitor movements. They can also be used in automation technology to monitor the flow of objects on a conveyor belt or to detect the presence or absence of objects in a specific area.
Another area of application for ring sensors is measurement technology, where they can be used to measure distances, thicknesses or diameters. As they enclose a cylindrical object, they are particularly useful when it is difficult to point the sensor directly at the area to be measured.
How do ring sensors / ring light barriers work?
Ring sensors or ring light barriers are optical sensors that are arranged in the form of a ring. They consist of a light source, usually an LED, and a light sensor, such as a photodiode or phototransistor. The ring light is emitted continuously and the sensor detects the reflected light.
When an object enters the ring, the reflected light is detected by the sensor. The intensity of the reflected light changes as the object passes through the ring. This signal is then processed by an amplifier or an evaluation circuit.
The function of a ring sensor is based on the principle of retro-reflective sensors. The reflected light is reflected from the surface of the object back to the sensor. The intensity of the reflected light depends on various factors, such as the color and surface texture of the object.
By continuously scanning the ring sensor, it can detect moving objects and recognize their position, speed or presence. Ring sensors are used in various applications, such as in automation technology for detecting objects on a conveyor belt or for determining the position of rotating parts in machines.
When an object enters the ring, the reflected light is detected by the sensor. The intensity of the reflected light changes as the object passes through the ring. This signal is then processed by an amplifier or an evaluation circuit.
The function of a ring sensor is based on the principle of retro-reflective sensors. The reflected light is reflected from the surface of the object back to the sensor. The intensity of the reflected light depends on various factors, such as the color and surface texture of the object.
By continuously scanning the ring sensor, it can detect moving objects and recognize their position, speed or presence. Ring sensors are used in various applications, such as in automation technology for detecting objects on a conveyor belt or for determining the position of rotating parts in machines.
What are the advantages of ring sensors / ring light barriers compared to other sensors?
Ring sensors or ring light barriers offer various advantages over other sensors:
1. 360-degree detection: Ring sensors detect objects in a complete 360-degree angle. This allows them to detect objects from any direction without the need for precise alignment.
2. High accuracy: Ring sensors offer precise detection of objects as they measure the reflection of the light that is reflected back from an object. This enables them to recognize even the smallest objects or fine details.
3. Flexibility: Ring sensors can be used in various applications as they are able to detect objects of different shapes and sizes. They can also be used in demanding environments as they are insensitive to external influences such as dust, dirt or vibrations.
4. Fast response time: Ring sensors detect objects in real time and offer a fast response time. This means they can be used in applications that require fast detection, such as in robotics or the packaging industry.
5. Simple installation: Ring sensors are easy to install as they usually have a simple mounting bracket. They do not require complex alignments or calibrations and can therefore be put into operation quickly.
6. Cost efficiency: Ring sensors are generally less expensive than other sensors with similar functionality. As a result, they offer an economical solution for various applications.
These advantages make ring sensors an attractive option for applications where 360-degree detection is required, such as in automation, robotics, the packaging industry or intralogistics.
1. 360-degree detection: Ring sensors detect objects in a complete 360-degree angle. This allows them to detect objects from any direction without the need for precise alignment.
2. High accuracy: Ring sensors offer precise detection of objects as they measure the reflection of the light that is reflected back from an object. This enables them to recognize even the smallest objects or fine details.
3. Flexibility: Ring sensors can be used in various applications as they are able to detect objects of different shapes and sizes. They can also be used in demanding environments as they are insensitive to external influences such as dust, dirt or vibrations.
4. Fast response time: Ring sensors detect objects in real time and offer a fast response time. This means they can be used in applications that require fast detection, such as in robotics or the packaging industry.
5. Simple installation: Ring sensors are easy to install as they usually have a simple mounting bracket. They do not require complex alignments or calibrations and can therefore be put into operation quickly.
6. Cost efficiency: Ring sensors are generally less expensive than other sensors with similar functionality. As a result, they offer an economical solution for various applications.
These advantages make ring sensors an attractive option for applications where 360-degree detection is required, such as in automation, robotics, the packaging industry or intralogistics.
What types of ring sensors / ring light barriers are there?
There are different types of ring sensors or ring light barriers that can be used depending on the application. Here are some examples:
1. Reflection light barrier: This type of ring sensor uses a light source and a receiver opposite each other. The light is reflected by the object and detected by the receiver. If the reflected light is interrupted, the sensor recognizes this as the presence or absence of the object.
2. Transmitted light barrier: With this type of ring sensor, the light is guided through the ring from below and detected by a receiver on the opposite side. If the object blocks the light beam, the sensor recognizes this as the presence of the object.
3. Inductive ring sensors: These sensors use electromagnetic induction to detect metal objects. If a metal object comes close to the ring sensor, the magnetic field changes and the sensor detects this.
4. Capacitive ring sensors: Capacitive sensors detect changes in the electrical field caused by the approach of an object. When an object comes close to the ring sensor, the capacitance changes and the sensor detects this.
5. Ultrasonic ring sensors: These sensors use ultrasonic waves to detect the presence of objects. The sensor emits ultrasonic pulses and detects the reflected pulses. If an object reflects the sound, the sensor detects this.
These are just a few examples of the different types of ring sensors or ring light barriers. Depending on the application and requirements, other types of ring sensors can also be used.
1. Reflection light barrier: This type of ring sensor uses a light source and a receiver opposite each other. The light is reflected by the object and detected by the receiver. If the reflected light is interrupted, the sensor recognizes this as the presence or absence of the object.
2. Transmitted light barrier: With this type of ring sensor, the light is guided through the ring from below and detected by a receiver on the opposite side. If the object blocks the light beam, the sensor recognizes this as the presence of the object.
3. Inductive ring sensors: These sensors use electromagnetic induction to detect metal objects. If a metal object comes close to the ring sensor, the magnetic field changes and the sensor detects this.
4. Capacitive ring sensors: Capacitive sensors detect changes in the electrical field caused by the approach of an object. When an object comes close to the ring sensor, the capacitance changes and the sensor detects this.
5. Ultrasonic ring sensors: These sensors use ultrasonic waves to detect the presence of objects. The sensor emits ultrasonic pulses and detects the reflected pulses. If an object reflects the sound, the sensor detects this.
These are just a few examples of the different types of ring sensors or ring light barriers. Depending on the application and requirements, other types of ring sensors can also be used.
What are the areas of application for ring sensors / ring light barriers?
Ring sensors or ring light barriers are used in various areas of application, including:
1. Automation technology: Ring sensors can be used in automation technology to measure the diameter, speed or position of rotating objects. They are frequently used in the packaging industry, food processing and the manufacture of automotive parts.
2. Medical technology: Ring sensors are often used in medical technology to measure a patient's heart rate or pulse. They can also be used in endoscopy to determine the position of the endoscope in the body.
3. Robotics: Ring sensors are used in robotics to monitor the position and movement of robot arms. They enable the robots to carry out precise and repeatable movements.
4. Traffic engineering: Ring sensors are used in traffic engineering to measure the speed of vehicles. They can be used in conjunction with traffic lights or speed monitoring systems.
5. Mechanical engineering: Ring sensors are used in mechanical engineering to monitor the condition of machines and systems. They can measure vibrations, temperatures or oscillations and thus indicate potential problems at an early stage.
6. Aerospace: Ring sensors are used in the aerospace industry to monitor the position and movement of satellites, spacecraft or aircraft. They are also used in aircraft engines to measure the speed and temperature.
This list is not exhaustive, as ring sensors can be used in many different areas where the measurement of position, movement or other parameters is required.
1. Automation technology: Ring sensors can be used in automation technology to measure the diameter, speed or position of rotating objects. They are frequently used in the packaging industry, food processing and the manufacture of automotive parts.
2. Medical technology: Ring sensors are often used in medical technology to measure a patient's heart rate or pulse. They can also be used in endoscopy to determine the position of the endoscope in the body.
3. Robotics: Ring sensors are used in robotics to monitor the position and movement of robot arms. They enable the robots to carry out precise and repeatable movements.
4. Traffic engineering: Ring sensors are used in traffic engineering to measure the speed of vehicles. They can be used in conjunction with traffic lights or speed monitoring systems.
5. Mechanical engineering: Ring sensors are used in mechanical engineering to monitor the condition of machines and systems. They can measure vibrations, temperatures or oscillations and thus indicate potential problems at an early stage.
6. Aerospace: Ring sensors are used in the aerospace industry to monitor the position and movement of satellites, spacecraft or aircraft. They are also used in aircraft engines to measure the speed and temperature.
This list is not exhaustive, as ring sensors can be used in many different areas where the measurement of position, movement or other parameters is required.
What attributes should be considered when selecting a ring sensor / ring light barrier?
When selecting a ring sensor or ring light barrier, various attributes must be taken into account. Here are some important points:
1. Diameter: The diameter of the ring sensor should match the size of the area to be monitored. The larger the diameter, the larger the area that can be covered.
2. Resolution: The resolution indicates how accurately the ring sensor can detect objects. A higher resolution enables more precise detection of smaller and finer objects.
3. Range: The range indicates how far the ring sensor can detect objects. It is important that the range is sufficient to monitor the desired area.
4. Operating mode: Ring sensors can work in different operating modes, e.g. retro-reflective sensor, transmitted sensor or background suppression. The appropriate operating mode should be selected depending on the application and environment.
5. Sensitivity: The sensitivity of the ring sensor determines how well it reacts to the presence or absence of an object. A higher sensitivity enables more precise detection, but can also lead to false alarms.
6. Connection options: It is important that the ring sensor has the correct connection options to connect it to other devices or systems.
7. Robustness: Depending on the area of application, the ring sensor should be robust enough to withstand the requirements. This can mean, for example, shock and vibration resistant, dust and waterproof or temperature resistant.
8. Costs: Of course, price also plays a role in the selection of a ring sensor. It is important to find an appropriate price-performance ratio that meets the requirements.
These attributes can vary depending on the application and environment. It is advisable to define the exact requirements and compare different models in order to select the best ring sensor for the specific application.
1. Diameter: The diameter of the ring sensor should match the size of the area to be monitored. The larger the diameter, the larger the area that can be covered.
2. Resolution: The resolution indicates how accurately the ring sensor can detect objects. A higher resolution enables more precise detection of smaller and finer objects.
3. Range: The range indicates how far the ring sensor can detect objects. It is important that the range is sufficient to monitor the desired area.
4. Operating mode: Ring sensors can work in different operating modes, e.g. retro-reflective sensor, transmitted sensor or background suppression. The appropriate operating mode should be selected depending on the application and environment.
5. Sensitivity: The sensitivity of the ring sensor determines how well it reacts to the presence or absence of an object. A higher sensitivity enables more precise detection, but can also lead to false alarms.
6. Connection options: It is important that the ring sensor has the correct connection options to connect it to other devices or systems.
7. Robustness: Depending on the area of application, the ring sensor should be robust enough to withstand the requirements. This can mean, for example, shock and vibration resistant, dust and waterproof or temperature resistant.
8. Costs: Of course, price also plays a role in the selection of a ring sensor. It is important to find an appropriate price-performance ratio that meets the requirements.
These attributes can vary depending on the application and environment. It is advisable to define the exact requirements and compare different models in order to select the best ring sensor for the specific application.
How are ring sensors / ring light barriers installed and adjusted?
The installation and adjustment of ring sensors / ring light barriers can vary depending on the manufacturer and model. However, here are some general steps to follow during installation and adjustment:
1. Placement: Select a suitable location for installing the ring sensor / ring light barrier. Make sure that the sensor covers the area you want to monitor.
2. Fastening: Attach the ring sensor / ring light barrier securely to the desired position. Use the supplied mounting brackets or screws.
3. Alignment: Align the sensor so that it points directly at the area to be monitored. Make sure that the sensor is not blocked or covered by other objects.
4. Cabling: Connect the ring sensor / ring light barrier to the mains or to other devices in accordance with the manufacturer's instructions.
5. Setting the functions: Depending on the model, ring sensors / ring light barriers can have different functions, such as sensitivity settings, detection range adjustments or delay settings. Take your time to read the manufacturer's instructions and make the desired settings.
6. Testing: Carry out a test run to ensure that the ring sensor / ring light barrier is working properly. Check whether it recognizes movements or objects and reacts accordingly.
7. Fine adjustment: If the ring sensor / ring light barrier does not work as desired, check the alignment, the settings and the environment. You may need to make some adjustments to achieve optimum results.
It is important to follow the manufacturer's specific instructions as these may vary depending on the model.
1. Placement: Select a suitable location for installing the ring sensor / ring light barrier. Make sure that the sensor covers the area you want to monitor.
2. Fastening: Attach the ring sensor / ring light barrier securely to the desired position. Use the supplied mounting brackets or screws.
3. Alignment: Align the sensor so that it points directly at the area to be monitored. Make sure that the sensor is not blocked or covered by other objects.
4. Cabling: Connect the ring sensor / ring light barrier to the mains or to other devices in accordance with the manufacturer's instructions.
5. Setting the functions: Depending on the model, ring sensors / ring light barriers can have different functions, such as sensitivity settings, detection range adjustments or delay settings. Take your time to read the manufacturer's instructions and make the desired settings.
6. Testing: Carry out a test run to ensure that the ring sensor / ring light barrier is working properly. Check whether it recognizes movements or objects and reacts accordingly.
7. Fine adjustment: If the ring sensor / ring light barrier does not work as desired, check the alignment, the settings and the environment. You may need to make some adjustments to achieve optimum results.
It is important to follow the manufacturer's specific instructions as these may vary depending on the model.
Which manufacturers offer ring sensors / ring light barriers and which are particularly recommended?
There are several manufacturers who offer ring sensors or ring light barriers. Some of the best-known manufacturers are:
1. Balluff: Balluff is a renowned manufacturer of sensor solutions and offers a wide range of ring sensors. Their products are characterized by high precision and reliability.
2. Pepperl+Fuchs: Pepperl+Fuchs is a leading global supplier of sensor technology and also offers ring sensors. Its products are known for their high quality and performance.
3. Leuze electronic: Leuze electronic is a specialist for sensor solutions and also offers ring light barriers. Their products are characterized by their robustness and ease of use.
4. SICK: SICK is a leading manufacturer of sensors and also offers a selection of ring sensors. Their products are known for their high accuracy and reliability.
5. Omron: Omron is a global supplier of automation technology and also offers ring sensors. Their products are characterized by their high quality and precision.
When choosing a manufacturer, it is important to consider the specific requirements and applications. It is advisable to read reviews and recommendations from other customers to find out which manufacturers offer particularly reliable and high-quality products.
1. Balluff: Balluff is a renowned manufacturer of sensor solutions and offers a wide range of ring sensors. Their products are characterized by high precision and reliability.
2. Pepperl+Fuchs: Pepperl+Fuchs is a leading global supplier of sensor technology and also offers ring sensors. Its products are known for their high quality and performance.
3. Leuze electronic: Leuze electronic is a specialist for sensor solutions and also offers ring light barriers. Their products are characterized by their robustness and ease of use.
4. SICK: SICK is a leading manufacturer of sensors and also offers a selection of ring sensors. Their products are known for their high accuracy and reliability.
5. Omron: Omron is a global supplier of automation technology and also offers ring sensors. Their products are characterized by their high quality and precision.
When choosing a manufacturer, it is important to consider the specific requirements and applications. It is advisable to read reviews and recommendations from other customers to find out which manufacturers offer particularly reliable and high-quality products.