German GAUGE BOURDON sensor GAUGE BOURDON model GAUGE BOURDON price

GAUGE BOURDON sensor is a device capable of sensing the approach of an object. It utilizes the sensitivity of a displacement sensor to approaching objects to detect proximity and output corresponding switching signals; therefore, proximity sensors are often referred to as proximity switches. It is a general term for sensors designed to replace contact-based detection methods such as switches, with the aim of non-contact detection of the target object. It can detect the movement and presence of objects and convert this information into electrical signals.

GAUGE BOURDON 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, 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, as resistance changes caused by temperature variations do not affect the measurement result. 2) Angular displacement sensor: Angular displacement sensors are applied in 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 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 wheel 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.

GAUGE BOURDON sensor usage precautions

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 fluctuate continuously. In this case, the electronic scale of the linear displacement sensor can be considered damaged and needs replacement. 2) If the power supply capacity is too small, various issues may arise; therefore, the power supply must have sufficient capacity. Insufficient capacity can cause the following situations: the movement of the melting glue may cause fluctuations in the display of the mold clamping electronic scale, or the mold clamping movement may cause fluctuations in the display of the injection molding electronic scale, resulting in significant measurement errors. If the driving 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 fluctuate. The signal cables 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 mounted on a grounding bracket, ensuring good contact between the housing of the electronic scale and the ground. Shielded cables must be used for signal lines, and one end of the shielded cable should be grounded at the electrical cabinet. When high-frequency interference is present, voltage measurements with a multimeter usually appear normal, but the displayed numbers continue to fluctuate. The situation is similar when electrostatic interference occurs. 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 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 the robotic arm to verify if high-frequency interference is the cause. 4) If the display data of the electronic scale of the linear displacement sensor fluctuates regularly at a certain point during operation, or if there is no display data, check whether the insulation of the connection cable 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 needs to meet ±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 angular alignment allows an error of ±12°. However, if both parallelism and angular errors are excessive, the displayed numbers will fluctuate. In such cases, the parallelism and angle must be adjusted. 7) During connection, pay close attention: the three wires of the electronic scale must not be connected incorrectly, and the power line and output line must not be swapped. If the wires are connected incorrectly, it will result in significant linearity errors, making control difficult and reducing control precision, while the display is prone to fluctuation.

GAUGE BOURDON 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, typically using 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. The flange detector adopts modern sensor technology, a microcontroller processing system, and a concise and stable mechanical structure, enabling convenient and precise continuous rapid measurement 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 the primary focus. There are many types of displacement sensors; the current novel sensor technology 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. The displacement sensor can be directly installed on the track for detection. Alternatively, a laser reflective displacement sensor can be used as the measuring device, scanning 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 amount, and wear area. Furthermore, 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 wheelsets based on dimensional compliance 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 rapid power development, people not only hope to experience comfort and enjoyment but also desire 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.

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