German SICK sensor GTB10-N1221 light source types

German SICK sensor GTB10-N1221 light source types

Let's first understand infrared light. Infrared light is a part of the solar spectrum, and its major characteristic is the photothermal effect, which radiates heat. It is the region of large photothermal effect in the spectrum. Infrared light is an invisible light that, like all electromagnetic waves, has properties such as reflection, refraction, scattering, interference, and absorption. The propagation speed of infrared light in vacuum is 300000 km/s. Infrared light attenuates when propagating in a medium, with significant attenuation in metals. However, infrared radiation can penetrate most semiconductors and some plastics, and most liquids absorb infrared radiation very much.

Different gases have varying degrees of absorption, and the atmosphere has different absorption bands for infrared light of different wavelengths. Research analysis shows that infrared light with wavelengths of 1-5 μ m and 8-14 μ m has relatively high "transparency". These wavelengths of infrared light can penetrate the atmosphere well. Any object in nature, as long as its temperature is above zero degrees, can produce infrared radiation. The photothermal effect of infrared light varies for different objects, and the intensity of thermal energy is also different. For example, a blackbody (an object that can absorb all the infrared radiation projected onto its surface), a mirror (an object that can reflect all the infrared radiation), a transparent object (an object that can penetrate all the infrared radiation), and a gray object (an object that can partially reflect or absorb infrared radiation) will produce different photothermal effects.

Strictly speaking, there are no blackbodies, mirrors, or transparent bodies in nature, and the vast majority of objects belong to gray bodies. The above characteristics are important theoretical basis for applying infrared radiation technology to military and scientific research projects such as satellite remote sensing telemetry and infrared tracking.

The physical essence of infrared radiation is thermal radiation. The higher the temperature of an object, the more infrared radiation it emits, and the stronger the energy of infrared radiation. Research has found that the thermal effects of various monochromatic lights in the solar spectrum gradually increase from purple light to red light, and the large thermal effects occur in the frequency range of infrared radiation. Therefore, infrared radiation is also known as thermal radiation or heat rays.

German SICK sensor distance measurement and terminal position recognition
To reduce the throwing of logs, a distance sensor and rangefinder DMT10 can be used to measure the distance between the tree and the barrier. DMT10 emits extremely short light pulses and calculates distance by measuring the flight time of the light pulses to reach and return to an object - within a working range of up to 150 meters. The use of inductive sensors IME with reliability in industrial applications can achieve terminal position recognition. Sensors can be installed on metal sensing surfaces.

The German sick sensor generates a high-frequency electromagnetic exchange field through LC oscillation circuit, signal recognizer, and coil of exchange oscillation circuit, and emits it onto the sensing surface of the sensor. When a metal object (exchange trigger) approaches the sensing surface, eddy currents are generated, resulting in losses that obtain energy from the oscillation circuit and reduce oscillation. The signal recognizer behind the LC oscillation circuit converts this information into a clear signal. High exchange frequency and continuous current are the characteristics of many inductive sensors from Schke, which can be used for DC two-wire conductors, DC three wire conductors, DC four wire conductors, AC/DC two-wire conductors, AC two-wire conductors, and NAMUR sensors based on EN 50 227.

OES3 also has strong anti-interference capabilities and other functions. The emitter of a displacement sensor emits light in a spindle shape, and the emission angle of a high-performance photoelectric sensor is very small. However, due to the limitations of the sensor's usage environment, there is often interference from dust and other objects in the detection area, which can cause a large emission angle. If there is a high reflectivity object nearby at this time, the displacement sensor will malfunction. The OES3 displacement sensor has added an error correcting LED below the transmitter LED. When the sensor starts working, the error correcting LED first emits an error correcting light source. If the receiver receives the emitted light at this time, the displacement sensor will automatically filter out this error signal during normal detection and output, enhancing the sensor's anti-interference ability. The OES3 sensor is made of materials with strong electromagnetic interference resistance and features an electromagnetic interference resistant design, providing strong electromagnetic interference resistance.

Sensors are important components in automatic control and information acquisition systems. They convert the sensed or responsive measurements into signals suitable for transmission or detection (usually electrical signals), and then use computers or circuit devices to process the sensor output signals to achieve automatic control functions. Due to the short response time of sensors, real-time control of industrial production can be achieved through computer systems. Infrared sensors are a common type of sensor. As infrared sensors detect infrared radiation, any object in nature that is stable above zero will radiate infrared energy to the outside world. Therefore, infrared sensors are a very practical type of sensor. Many practical sensor modules can be designed using infrared sensors, such as infrared thermometers, infrared imagers, infrared human detection alarms, automatic door control systems, etc.

The German SICK sensor is a sensor that uses the physical properties of infrared radiation for measurement. Infrared, also known as infrared light, has properties such as reflection, refraction, scattering, interference, and absorption. It is an invisible light with a spectrum located outside of red in visible light, hence it is called infrared. In engineering, the position (band) of infrared in the electromagnetic spectrum is divided into four bands: near-infrared, mid infrared, far-infrared, and extremely far-infrared. Any substance, as long as it has a certain temperature (above zero degrees), can emit infrared radiation.

1. Intelligence: Currently, infrared sensors are mainly used in conjunction with peripheral devices, and smart sensors have built-in microprocessors that can achieve bidirectional communication between sensors and control units. They have miniaturization, digital communication, and simple maintenance, and can work independently as a module.

2. Miniaturization: The miniaturization of sensors is an inevitable trend. In current applications, due to the volume issue of infrared sensors, their usage level is far inferior to that of thermoelectric sensors. So the impact of miniaturization and portability of infrared sensors on their development prospects cannot be ignored.

3. High sensitivity and high performance: In medicine, infrared sensors have been widely used for rapid measurement of human body temperature, but due to their low accuracy, they cannot replace existing temperature measurement methods. Therefore, high sensitivity and performance of infrared sensors are the inevitable trend for their future development.

Design and Construct Metric Design
Shell shape standard
Thread size M8 x 1
Diameter Ø 8 mm
Trigger sensing distance Sn 2 mm
Safe connection distance Sa 1.62 mm
Installed flush with metal
Switching frequency 4000 Hz
Connection type plug, M8， 3 needles
Switching output PNP

Output function normally open contact
Electrical specification: DC 3-wire
Enclosure protection level IP67 1)
Lag by 5% .. 15 %
Reproducibility ≤ 2% 3) 4)
Temperature drift (Sr) ± 10%
Electromagnetic compatibility according to EN 60947-5-2
Continuous current Ia ≤ 200 mA
Short circuit insurance?
Polarity reversal protection?
Power on pulse protection?
Shock and vibration resistance 30 g, 11 ms/10 Hz... 55 Hz, 1 mm
Operating environment temperature -25 ° C...+75 ° C 5)
Shell material brass, nickel plated
Material, sensing surface plastic, PA 66
Shell length 50 mm
Available thread length 34 mm
Tightening torque ≤ 5 Nm
Supply scope: Tightening nuts, brass, nickel plated (2 x)
Supply voltage 10 V DC... 30 V DC
Residual ripple ≤ 10%
Voltage drop ≤ 2 V 1)
Current consumption 10 mA 2)
Servo motor HG-KR23
Servo motor HG-KR43JK
Servo Controller MR-J4-200B
Servo Controller MR-J4-500B
Servo Controller MR-J4W2-22B
Servo Controller MR-J4W3-2222B
Servo Controller MR-J4W3-444B
Servo motor HG-KR053B
Servo motor HG-KR13
Servo motor HG-KR13B
Servo motor HG-KR23B
Servo motor HG-SR152B
German SICK sensor GTB10-N1221 light source types