German FPT PRESSOFUSIONE sensor FPT PRESSOFUSIONE model FPT PRESSOFUSIONE price

FPT PRESSOFUSIONE sensors, also known as displacement sensors, are a type of sensor used to detect the distance to an object to perform a preset function, and are widely used. Main products include mobile phone proximity sensors and long-distance measurement sensors, applied in smart belts. Proximity sensors can be classified into optical proximity sensors, infrared proximity sensors, ultrasonic proximity sensors, etc., based on their working principles. Most proximity sensors used in mobile phones are infrared proximity sensors, which have an infrared emitting tube and an infrared receiving tube. When the infrared ray emitted by the transmitting tube is received by the receiving tube, it indicates that the distance is close, and the screen needs to be turned off to prevent misoperation. When the receiving tube does not receive the infrared ray emitted by the transmitting tube, it indicates that the distance is far, and there is no need to turn off the screen. The working principles of other types of proximity sensors are similar; they also determine the distance by emitting and receiving a certain substance, such as ultrasonic waves or light pulses.

FPT PRESSOFUSIONE sensor classification

1) Linear displacement sensor: The function of a linear displacement sensor is to convert linear mechanical displacement into an electrical signal. To achieve this effect, a variable resistor slide rail is usually fixed at a stationary part of the sensor, and different resistance values are measured by the displacement of the wiper on the slide rail. The sensor slide rail is connected to a stable DC voltage, allowing a small current in microamperes to flow. The voltage between the wiper and the starting end is proportional to the length of the wiper's movement. Using the sensor as a voltage divider minimizes the requirement for the accuracy of the total resistance of the slide rail, because resistance changes caused by temperature variations do not affect the measurement result. 2) Angular displacement sensor: 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 rotate, it means your machine is blocked by an obstacle. This technology is very easy to use and highly effective; the only requirement is that the moving wheel must not slip on the floor (or slip too frequently), otherwise you will not be able to detect obstacles. Connecting an idling 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 means you have hit an obstacle.

FPT PRESSOFUSIONE sensor usage precautions

1) If the electronic scale has been in use for a long time, with aged seals and significant contamination, water-oil mixtures can severely affect the contact resistance of the brushes, causing the displayed numbers to fluctuate continuously. In this case, the electronic scale of the linear displacement sensor is considered damaged and needs replacement. 2) Insufficient power supply capacity can lead to various issues; therefore, the power supply must have adequate capacity. Insufficient capacity may cause the following: mold melting movements can cause fluctuations in the mold closing electronic scale display, or mold closing movements can cause fluctuations in the injection molding electronic scale display, resulting in significant measurement errors. These issues are more likely when the solenoid valve drive power shares the same supply as the linear displacement sensor. In severe cases, voltage fluctuations can even be measured using the voltage range of a multimeter. If the issue 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 linear displacement sensor's electronic scale to fluctuate. The signal cables of the electronic scale must be routed separately from high-power circuits in different cable trays. The electronic scale must be firmly mounted using grounding brackets, ensuring good contact between its housing and ground. Signal cables must be shielded, and one end of the shield should be grounded at the electrical cabinet. In cases of high-frequency interference, multimeter voltage readings may appear normal, yet the displayed numbers continue to fluctuate. Electrostatic interference exhibits similar symptoms. To verify electrostatic interference, temporarily short-circuit the cover screw of the electronic scale to a metal part of the machine using a power cord; this will immediately eliminate electrostatic interference. However, this method is ineffective for high-frequency interference. Since variable frequency drives and robotic arms often generate high-frequency interference, try stopping these devices to verify if high-frequency interference is the cause. 4) If the electronic scale of the linear displacement sensor shows regular fluctuations at a specific point during operation, or if there is no display data, check whether the insulation of the connection cables is damaged, causing regular contact with the machine housing and resulting in a ground short circuit. 5) The supply voltage must be stable. Industrial voltage stability should comply with ±0.1[%]. For example, if the reference voltage is 10V, a fluctuation of ±0.01V is permissible. Otherwise, significant display fluctuations may occur. However, if the amplitude of the display fluctuation does not exceed the amplitude of the voltage fluctuation, the electronic scale is functioning normally. 6) Alignment of the linear displacement sensor must be precise. Parallelism allows an error of ±0.5mm, and angular alignment allows an error of ±12°. However, excessive parallelism and angular errors will cause display fluctuations. In such cases, parallelism and angle adjustments are required. 7) During connection, ensure the three wires of the electronic scale are correctly connected; power and output lines must not be swapped. Incorrect wiring will result in significant linearity errors, making control difficult and reducing control precision, while also causing display fluctuations.

FPT PRESSOFUSIONE 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 complex, usually involving specialized rulers with verniers for measurement, leading to significant errors due to manual data reading, and preventing 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 use modern sensor technology, microcontroller processing systems, and concise, stable mechanical structures to conveniently and accurately measure geometric state parameters continuously and rapidly, 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 the most concerned. There are many types of displacement sensors; currently, a new type of sensor technology called laser displacement sensors is used for train wheel flange detection. The laser triangulation method is currently 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. Laser sensor modules scan the flange shape along a straight line while recording the entire flange data. The entire flange contour curve can be obtained through a microprocessor, thereby calculating flange width, flange height, 70mm wear amount, and wear area. The measured data can be uploaded to a computer to generate a database, utilizing advanced post-processing software for digital management of train wheel flanges. It can not only measure wheelset wear on trains in operation but also sort qualified wheelset dimensions on the production line. 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 hope to experience comfort and enjoyment but also desire safety. The development of sensor technology will bring more safety to people's lives and transportation, and the development of sensor technology in China will also drive the development of world-class advanced technologies in transportation internationally.

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