Capacitance – As the name suggests, these sensors work by recording changes in capacitance, which is a function of charge and voltage between two surfaces with an air gap or other material known as the dielectric constant. When the object to be measured enters the sensor field, it has an effect on the medium, which changes the capacitance, and the capacitance is perceived as a change.
Induction – These types of sensors are based on varying inductance, which is a measure of the ability to induce the voltage of a conductor as a variation of current in different conductors. Inductive sensors are suitable for metal objects because they have sensing properties and therefore cannot be used to detect plastics.
In addition, the type of material also affects the sensing distance. For example, ferromagnetic materials such as steel generally have the longest sensing distance, while other metals such as aluminum or copper have even shorter sensing distances.
Optoelectronics – These sensors work on a light-based basis and depend on the change in the amount of light available to the detector in the sensor. There are two basic types of photoelectric sensors; Reflects and penetrates the beam. Reflex sensors work by emitting a beam of light that hits an object and then reflects back to the detector, usually in the same physical enclosure as the emitted beam. Penetrating beam sensors, on the other hand, have two separate units, an emitter or light source and a separate receiver or detector. When an object destroys the beam, the detector records the destruction.
Ultrasound – These sensors use sound waves to detect objects. They emit a high-frequency sound wave (higher than the human ear can detect), and when it hits an object, the sound wave is reflected back to the sensor, which calculates the distance of the object based on the time it takes for the object to return. They are used to measure the distance of objects, such as car parking assist functions, as well as bottling and filling applications to detect fluid levels.
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More on that
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What are the main uses of Sick sensors – laser distance sensors?
1. Laser length measurement
Precision length measurement is one of the key technologies in the precision machinery manufacturing industry and the optical processing industry. Modern length measurement is mostly carried out by using the interference phenomenon of light waves, and its accuracy mainly depends on the monochromacy of light. Laser is the most ideal light source, it is more ...
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Sick 3D cameras help the field of refractory bricks
With the continuous advancement of the wave of industrial upgrading in the metallurgical industry, the refractory brick industry in the subdivided field has also ushered in a new opportunity, machine vision as the core technology of industrial automation has also been fully applied, and the 3D camera of Sick has shown excellent performance in the field of refractory bricks.
Refractory bricks are abbreviated ...
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The GLS621, a new member of the Sick AGV/AGC navigation sensor family
As a special sensor for the two-dimensional code positioning and navigation market, GLS621 is mainly used in warehousing AGVs or warehouse handling robots based on the principle of inertial two-dimensional code navigation.
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Sick has launched its latest MDA Vision system
In the current era of rapid economic development, logistics is known as the "blood" of the national economy, although the early Chinese logistics industry started late, with the continuous improvement of the system, the rapid development of high and new technology, now the logistics industry has become a social and economic bridge and link. Among them, the data flow is ...
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Sick Sensors – Precautions for the use of displacement sensors
1. There are many types of displacement sensors, and the measurement accuracy, service life, response frequency and applicable occasions of sensor products designed with different principles will be slightly different. Appropriate displacement sensor products should be selected according to the on-site installation and measurement requirements.
2. The measurement range of the displacement sensor is one ...
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How to solve the error of function block?
The reader always gives an error, which can be found in the function block usage documentation.
01. How to download and view
The public information of most of Sea's products can be downloaded from the official website without login, please find it in the download area at the bottom of the product homepage.
For example, we make ...
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Sick Sensors – How to Choose the Right Color Sensor
1. What is the purpose of the application?
2. What is the type of existing power supply? AC or DC? What is the rated voltage?
3. What equipment should be controlled by the detection system? Conveyor or inspection system?
4. What is the output load?
5. What is the working speed of the required system?
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Sick Sensors – How RTD sensors work
Thermal resistance is used to measure the temperature of a substance when its temperature changes, and its resistance also changes with the characteristics of the change. When the resistance value changes, the working instrument will display the temperature value corresponding to the resistance value.
RTD sensors use the resistivity of conductors or semiconductors to change with temperature.
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Sick's 3D vision product Ruler3000 series has been expanded with two new members
Two new members of the Ruler3000 family of Sick 3D vision products have been added, named Ruler3120 and Ruler3008.
The new 3D vision sensor solution Ruler3000 from SICK is suitable for a wide range of industrial applications and is characterized by its high speed and image quality.
3D Visual Transmission ...
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Sick sensors – fork photoelectric sensor applications
1. Parking lot or conveyor and other places Its function is to detect the parking position, and the detection distance is relatively long, which is more applicable in parking lots and other occasions.
2. The position of the processed parts In the factory production process, in order to realize the automatic processing state of the parts, the position of the parts must be inspected.
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Sick sensors – the advantages of ultrasonic sensors over photoelectric sensors
It is possible to bypass small obstacles (such as dust) (photoelectric is completely not allowed in this environment).
Liquid position can be measured. (e.g. for level monitoring)
Transparent objects can be measured. (e.g. presence or displacement of glass)
Not affected by the surface of the object ...
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What are the relevant applications for Sick sensors – ultrasonic sensors?
Main applications:
Ultrasonic sensing technology is used in different aspects of production practice, and medical application is one of its most important applications. The application of ultrasound in medicine is mainly to diagnose diseases, and it has become a clinical...
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Sick Sensors – Precautions for the use of pressure sensors
1. The sensor should be handled gently, especially for the small range sensor with aluminum alloy material as the elastomer, any impact or drop caused by vibration is likely to cause a large output error. In addition, it is necessary to protect the sensor outlet head and not to break it
2. Design loading ...
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Introduction to the performance of the W4F series of miniature intelligent photoelectric sensors from sick
Friends who pay attention to Sick will not be unfamiliar with the W4-3 series products, this classic mini photoelectric is widely praised by the industry for its excellent set pressing function and diverse optical functions. Whether the object is a lubricated and reflective mobile phone surface, a wrinkled and dark food packaging bag, or ...
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Classification and introduction of SICK sensors - pressure sensors
Pressure Sensor Classification:
There are great differences in the skills, design, function and adaptability of pressure sensors, as well as the conditions and price of pressure sensors. According to preliminary estimates, there are more than 60 types of pressure sensors in the world and at least 300 companies produce pressure sensors.
Pressure...
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Adjustment method of the Sick WFS3-40N415 sensor
(1) Automatic calibration: When the workpiece enters the sensitive area of the probe, hold down the "SET" button for 3 seconds, and the sensitivity value will be set and displayed in green.
(2) Two-point calibration: When the workpiece does not enter the sensitive area, press and hold the "SET" button for three seconds.
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Sick 3D machine vision enables intelligent guidance for tire laser lettering
With the continuous promotion of the dual carbon policy, a sustainable production and operation model is particularly important for manufacturing enterprises. The tire and rubber industry is also seeking a greener way of development.
With the iterative improvement of the production process, the tire and rubber enterprises will also ...
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Sick sensor - the detection procedure of the sensor, the precautions in the detection process
The detection procedure of the sensor
1. Symptom Judgment: Infer the location where the malfunction may occur.
2. Decoder detection: Confirm whether the suspected sensor has a fault code in the decoder, and strengthen the judgment in the data stream.
3. Inspection around the sensor: In case of ...
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Sick sensor – the difference between photoelectric sensor and infrared sensor
Photoelectric sensors
A photoelectric sensor is a device that converts an optical signal into an electrical signal. Its working principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon that when light hits some substance, the electrons of the substance absorb the energy of the photons, and the corresponding electrical effect occurs. According to the photoelectric effect ...
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Introduction to the functions and characteristics of Sick sensors
1. At present, SICK pressure sensors can be used in combination with computers and instruments to improve operation and reduce errors. The human-machine dialogue function is the main feature of SICK pressure sensors, and the display device and input keyboard equipped with it become the medium for human-machine dialogue.
2. SICK pressure sensing ...
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