German EnviroChemie sensors EnviroChemie models EnviroChemie prices

EnviroChemie sensors are a general term for sensors designed to detect objects without physical contact, replacing contact-based detection methods such as limit switches. They convert information about an object's movement and presence into electrical signals. Detection methods that convert to electrical signals include those utilizing eddy currents generated in the metal body of the detected object due to electromagnetic induction, methods detecting capacitance changes in the electrical signal caused by the approach of the detected object, and methods using reed and guide switches.

EnviroChemie sensor classification

1) Linear displacement sensors: The function of linear displacement sensors is to convert linear mechanical displacement into electrical signals. To achieve this, a variable resistor track is typically fixed at a stationary part of the sensor, and different resistance values are measured by the displacement of a wiper on the track. The sensor track is connected to a stable DC voltage, allowing a small microampere current to flow. The voltage between the wiper and the start terminal is proportional to the length of the wiper's movement. Using the sensor as a voltage divider minimizes the requirement for the precise total resistance of the track, because resistance changes caused by temperature variations do not affect the measurement result. 2) Angular displacement sensors: Angular displacement sensors are used for obstacle handling: using angle sensors to control your wheels can indirectly detect obstacles. The principle is very simple: if the motor angle sensor structure is operating but the gear does not turn, it indicates that your machine is blocked by an obstacle. This technology is very simple to use and highly effective; the only requirement is that the moving wheels must not slip on the floor (or slip too frequently), otherwise you will be unable to detect obstacles. Connecting an idler gear to the motor can avoid this problem; this wheel is not driven by the motor but is driven by the movement of the device: during the rotation of the drive wheel, if the idler wheel stops, it indicates that you have encountered an obstacle.

Precautions for using EnviroChemie sensors

1) If the electronic scale has been used for a long time, and the seal has aged while accumulating many impurities, water mixtures and oil will seriously affect the contact resistance of the brush, causing the displayed numbers to jump continuously. In this case, the electronic scale of the linear displacement sensor can be considered damaged and needs to be replaced. 2) If the power supply capacity is too small, many issues may arise; therefore, the power supply must have sufficient capacity. Insufficient capacity can cause the following situations: the movement of the melting glue causes fluctuations in the display of the mold closing electronic scale, or the mold closing movement causes fluctuations in the display of the injection molding electronic scale, resulting in significant measurement errors. If the drive power of the solenoid valve and the power supply of the linear displacement sensor are shared, the above situations are more likely to occur. In severe cases, voltage fluctuations can even be measured using the voltage range of a multimeter. If the situation is not caused by high-frequency interference, electrostatic interference, or poor neutral grounding, it is likely due to insufficient power supply capacity. 3) Frequency modulation interference and electrostatic interference can both cause the displayed numbers on the electronic scale of the linear displacement sensor to jump. The signal lines of the electronic scale must be routed in separate cable trays from the high-power lines of the equipment. The electronic scale must be forcibly grounded using a grounding bracket, ensuring good contact between the electronic scale housing and the ground. Shielded cables must be used for signal lines, and one end of the shielded cable should be grounded at the electrical box. When high-frequency interference is present, voltage measurements with a multimeter usually appear normal, but the displayed numbers continue to jump; electrostatic interference causes similar symptoms. To verify whether it is electrostatic interference, you can short-circuit the cover screw of the electronic scale to some metal part of the machine using a piece of power cord. Once short-circuited, the electrostatic interference will be eliminated immediately. However, it is difficult to eliminate high-frequency interference using the above method. Variable frequency drives and robotic arms often generate high-frequency interference, so you can try stopping the high-frequency drive or robotic arm to verify if high-frequency interference is the cause. 4) If the displayed data of the electronic scale of the linear displacement sensor jumps regularly at a certain point during operation, or if there is no display data, check whether the insulation of the connection wire is damaged and causing a regular ground short circuit due to contact with the machine housing. 5) The supply voltage must be stable. Industrial voltage requires stability within ±0.1[%]. For example, if the reference voltage is 10V, a fluctuation of ±0.01V is allowed. Otherwise, it will cause continuous fluctuations in the display. However, if the amplitude of the display fluctuation does not exceed the amplitude of the voltage fluctuation, the electronic scale is functioning normally. 6) The alignment of the linear displacement sensor installation must be precise, but parallelism allows an error of ±0.5mm, and angularity allows an error of ±12°. However, if both parallelism and angularity errors are excessive, the displayed numbers will jump. In such cases, parallelism and angularity must be adjusted. 7) Pay close attention during connection. The three wires of the electronic scale must not be connected incorrectly, and the power and output lines must not be swapped. Incorrect wiring will result in significant linearity errors, making control difficult and reducing control precision, while the display is prone to jumping.

EnviroChemie sensor applications

The geometric state parameters of train wheel flanges affect the speed and smoothness of train operation and are crucial for safe train operation. Traditional detection methods are relatively complex, usually involving specialized rulers with verniers for measurement. Manual reading of data leads to significant measurement errors and prevents digital management of detection data. With the development of China's railway industry, train speeds are increasing, making precise and rapid inspection and digital management of train wheel flange state parameters increasingly important. Flange detectors utilize modern sensor technology, microcontroller processing systems, and concise, stable mechanical structures to conveniently and accurately perform continuous, rapid measurements of geometric state parameters, achieving digitization of parameters such as flange height and rim thickness. Many sensors are used for detecting flange height, width, rim thickness, etc., with displacement sensors being of primary concern. There are many types of displacement sensors; the novel sensor technology currently used for train wheel flange detection is called laser displacement sensors. Currently, laser triangulation is used for train wheel flange detection, offering high precision for short-distance measurements. Displacement sensors can be directly installed on the track for detection, or laser reflective displacement sensors can be used as measuring devices. The laser sensor module scans the flange shape along a straight line while recording the entire flange data. A microprocessor can then derive the entire flange contour curve, thereby calculating flange width, flange height, 70mm wear volume, and wear area. The measured data can be uploaded to a computer to generate a database, enabling digital management of train wheel flanges using advanced post-processing software. It can not only measure wheelset wear on trains in operation but also sort wheelsets on the production line based on dimensional compliance. The development of transportation relies on detection technology, with instruments and sensor technology being the core of detection technology. In today's era of high-speed power development, people not only desire comfort and enjoyment but also prioritize safety. The development of sensor technology will bring greater safety to people's lives and transportation, and the development of sensor technology in China will also drive the advancement of world-class technologies in the transportation sector internationally.

Weidou Intelligent Technology specializes in selling German EnviroChemie sensors, EnviroChemie proximity sensors, EnviroChemie distance sensors, EnviroChemie vision sensors, EnviroChemie displacement sensors, EnviroChemie torque sensors, EnviroChemie speed sensors, EnviroChemie photoelectric sensors, EnviroChemie position sensors, EnviroChemie angle sensors, EnviroChemie tactile sensors, EnviroChemie temperature sensors, EnviroChemie pressure sensors, EnviroChemie flow sensors, EnviroChemie level sensors, EnviroChemie motion sensors, EnviroChemie process sensors. Original German imports. Welcome inquiries and orders from users.