Visible red LED light source
The sensor application of this light source is very common, the light spot is visible, the light spot is large, easy to align, easy to install and adjust, and the price is close to the people, which can meet most applications. The disadvantage is that the detection accuracy is not high.
Red laser light source
The laser has a small spot, bright and concentrated, strong energy, good anti-interference, and high detection accuracy, which is suitable for detecting objects with small size and occasions with high detection accuracy requirements. The downside is that the price is higher. The sensor of the laser light source is divided into primary laser class I and secondary laser class II. The first type of laser is safe for people, and the second type of laser has less damage to people, that is to say, the energy of the secondary laser is stronger than the primary laser, so we should not stare at its lens for a long time using the photoelectric sensor of the secondary laser.
Infrared LED light source
Infrared LEDs and receiving elements have a strong response to infrared light and high efficiency. Therefore, most of the long-range photoelectric sensors use infrared light sources. Within the same product family, infrared light tends to have a longer detection distance than red light. Infrared light has strong energy and good anti-interference, but the light spot is not visible, and it will feel more troublesome to install and adjust. "Invisible" is not the only disadvantage, some applications require invisible spots, such as when a worker is always working nearby, visible spots can make people feel uncomfortable. In addition, when the reflectivity of the object under test is poor, or when the external ambient light interference line is large, the sensor with infrared light source is more suitable.
The longer the wavelength of light, the greater the attenuation in water. Taking advantage of this feature, United States Banner has developed a QS30H2O sensor that uses 1450nm infrared light to detect the presence or absence of liquid in water.
In view of the limited installation space in some applications, Bonner of United States has also developed a fiber detection solution, and the DF-G3LIR fiber amplifier also uses 1450nm infrared light.
Blue LED light source
The applicability of blue light sources is not as wide as that of red and infrared light. For DUTs with strong light absorption, such as solar crystalline silicon wafers, sensors with blue light sources are more suitable.
United States Bonner's VS8 sensor series has a professional blue light source sensor, and the size is small, compact structure, fully suitable for the needs of solar energy, electronics and other industries.
White LED, green LED, blue LED light source
The above light sources are generally used for color mark sensors.
RGB LED light source
Generally used in color sensors, the light source of the three primary colors will reflect different proportions of the three primary colors when hitting the measured object, so that subtle color differences can be recognized.
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Sick released a new product, the safety camera safeVisionary2
With the practical application and demand of security protection, the existing 2D protection equipment has gradually been unable to meet the customer's requirements for safety, and the demand for 3D safety equipment is getting higher and higher.
Today we are launching a new product from SICK---safeVisionary2.
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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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The range of applications for Sick sensors
1. Detect the torque in the working process of various machining centers and automatic machine tools.
2. Detect the load torque and input power of reducer, fan, pump, mixer, winch, propeller, drilling machinery and other equipment.
3. Detection of generators, electric motors, internal combustion engines...
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Sick Sensors - Introduction to the advantages of RTD sensors
(1) High measurement accuracy; The reason why RTD sensors have high measurement accuracy is mainly because the resistance temperature characteristics of some materials are stable and reproducible. Secondly, compared to thermocouples, it does not have the problem of reference end error;
(2) It has a large measurement range, especially in low temperatures;
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There are several undesirable fault phenomena that are common with SICK sensors
The color and number of SICK sensor wires are conveniently different. Some are six-wire sensors. However, the two sense lines are also connected to the sensor's book input signals E+ and E-, and we can ignore these two feedback lines or combine them into one. The color of each cable ...
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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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The road "inspection" is uneven, and Sick helps each other 3D vision from SICK in road traffic
The 13th Five-Year Plan for Highway Development proposes: "Promote scientific decision-making on maintenance. The scientific decision-making system for national and provincial highway maintenance has been basically established, the coverage rate of technical condition detection and automatic pavement collection has reached 100%, and the popularization rate of scientific decision-making technology has reached 80%. ”
The state vigorously promotes the national road ...
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Sick sensors – the basic components of infrared sensor systems and their functions
1) The target to be measured: the infrared system is set according to its infrared radiation characteristics;
2) Atmospheric attenuation: When the infrared radiation of the object to be measured passes through the atmosphere, it will be affected by a variety of substances and the attenuation phenomenon occurs;
3) Optical receiver: used to receive part of the infrared radiation and ...
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Sick Sensors – Common faults in pressure sensors
One. The pressure can go up, but the transmitter output can't go up
In this case, you should first check whether there is a leak in the pressure interface or it may be blocked, if it is confirmed, then check whether the wiring method is wrong and check the power supply, if the power supply is normal, you should simply pressurize to see if the output is ...
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Sick sensors – features of photoelectric sensors
1. Long detection distance
If the detection distance of 10 m or more is retained in the through-beam type, it is possible to achieve detection that is not possible with other detection methods (magnetic, ultrasonic, etc.).
2. There are few restrictions on the detected objects
Due to the detection of shading and reflection caused by the detection of objects ...
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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 Sensors - Introduction to the static and dynamic characteristics of displacement sensors
Dynamic features:
The so-called dynamic characteristics of the sensor refer to the characteristics of the output of the sensor when the input changes. In practice, the dynamic characteristics of a sensor are often expressed in terms of its response to some standard input signal. This is because the sensor's response to a standard input signal ...
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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 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 Sensors – Installation Requirements for RTD Sensors
1. In order to have sufficient heat exchange between the measuring end of the RTD and the medium to be measured, the location of the measuring point should be reasonably selected, and the installation of RTD near the valve, elbow, pipe and equipment should be avoided as much as possible.
2. The thermal resistance with a protective sleeve has heat transfer and heat dissipation loss, in order to reduce the ...
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Common fault causes and treatment methods of Sick sensors
1. No weighing reading
This kind of fault is generally more common, the weighing value of a certain scale is zero, regardless of whether there is something on the scale, its weighing value is always zero.
There are several reasons for the above failure: a. the sensor is damaged, b. the line is open, c. the signal is ...
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Parameter settings for the Sigg distance sensor
1. Set to "Surface" to measure the distance from the first surface within the sensor's detection range. This setting is available for all sensor heads.
2. Set to Glass Thickness to measure the distance from the front to the back of a transparent object, such as glass. This means that it has been measured with the sensing ...
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Sick 3D vision gluing application case in shoe soles
Traditional sole gluing needs to be done manually, and this process generally has a high temperature and fast toxicity volatilization. However, with the development of Industry 4.0, outdated equipment, rising costs, poor production environment, and shortage of personnel in this type of work have become important reasons for the upgrading and transformation of this process. SICK in partnership ...
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Sick Sensors - Classification and detailed introduction of temperature sensors
According to the measurement method, it can be divided into contact type and non-contact type
1。 The detection part of the contact: the contact temperature sensor is in good contact with the measured object, also known as the thermometer
The thermometer achieves thermal equilibrium by conduction or convection, so that the indicated value of the thermometer can directly represent the ...
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Sick Sensor - Introduction to the 7 performance indicators of the sensor
1. Linearity: refers to the degree to which the actual relationship curve between the output and input of the sensor deviates from the fitting straight line. Defined as the ratio of the maximum deviation between the actual characteristic curve and the fitted line over the full scale range to the full-scale output.
2. Sensitivity: Sensitivity is the sensor ...
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