| Max. operating pressure | 350 bar |
| Excitation frequency | 5 to 10 kHz |
| Linearity | 0.25 to 0.5 % |
Path sensors linear inductive
Linear inductive displacement sensors, also called LVDT displacement sensors (LVDT, Linear Variable Differential Transformer), among others, can measure linear displacements and positions. They are characterized by high accuracy and the robust design. The robust design allows the use of this type of sensor in plants where the sensor is exposed to high accelerations and high vibrations, for example.
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2,941 - 2,956
| Excitation frequency | 5 to 10 kHz |
| Linearity | 0.1 to 0.5 % |
| Measurement range | -250 to 250 mm |
| Excitation frequency | 5 to 10 kHz |
| Linearity | 0.1 to 0.5 % |
| Measurement range | -250 to 250 mm |
| Excitation frequency | 5 to 10 kHz |
| Linearity | 0.1 to 0.5 % |
| Measurement range | -250 to 250 mm |
| Max. operating pressure | 350 bar |
| Pressure-resistant up to | 600 bar |
| Adjustment acceleration, max. | 200 m/s² |
| Max. operating pressure | 350 bar |
| Linearity | 0.02 % |
| Measurement range | 0 to 2,500,000 mm |
| Applications | Electrical industry Mechanical engineering & Plant construction Metal industry Semiconductor industry |
| Max. operating pressure | 350 bar |
| Pressure-resistant up to | 450 bar |
| Repeatability (mm) | 0.1 mm |
| Applications | Electrical industry Mechanical engineering & Plant construction Metal industry Semiconductor industry |
| Max. operating pressure | 350 bar |
| Pressure-resistant up to | 450 bar |
| Linearity | 0.04 % |
| Applications | Electrical industry Mechanical engineering & Plant construction Metal industry Semiconductor industry |
| Excitation frequency | 5 to 10 kHz |
| Linearity | 0.1 to 0.5 % |
| Measurement range | -250 to 250 mm |
| Adjustment acceleration, max. | 200 m/s² |
| Linearity | 0.02 % |
| Adjustment speed, max. | 10 m/s |
| Resolution | 1 to 5 µm |
| Adjustment acceleration, max. | 200 m/s² |
| Linearity (µm) | 10 to 50 µm |
| Max. operating pressure | 350 bar |
| Linearity | 0.04 % |
| Measurement range | 0 to 2,500,000 mm |
| Max. operating pressure | 350 bar |
| Adjustment acceleration, max. | 100 m/s² |
| Adjustment speed, max. | 10 m/s |
| Resolution | 1 µm |
| Linearity | 0.01 to 0.02 % |
| Measurement range | 0 to 4,000,000 mm |
| Resolution | 1 to 40 µm |
| Linearity | 0.01 to 0.02 % |
| Measurement range | 0 to 4,000,000 mm |
| Resolution | 1 to 5 µm |
| Adjustment acceleration, max. | 200 m/s² |
| Linearity (µm) | 10 to 40 µm |
Simplified description of the measurement principle: A ferromagnetic core moves in a coil arrangement of primary and secondary coils. The primary windings are fed with an AC voltage whose frequency is between 1 and 10 kHz. If the core moves in the alternating magnetic field of the secondary coils, a secondary signal is generated. This is then converted to a standard output signal.
What are linear inductive displacement sensors and how do they work?
Linear inductive displacement sensors are electronic devices that are used to measure the position or displacement of a moving object. They are based on the principle of inductive coupling.
A linear inductive displacement sensor consists of a coil that generates a magnetic field and a moving metal object that is brought into the vicinity of the coil. When the metal object moves, the inductive coupling between the coil and the object changes, which leads to a change in the measured electrical signal.
The principle behind the operation of the linear inductive displacement sensor is based on Faraday's law of electromagnetic induction. When the metal object moves, the magnetic field in the coil changes, which causes a change in the induced voltage in the coil. This change is then measured electronically and converted into a digital output that represents the measured distance.
The advantage of linear inductive displacement sensors is that they are contactless and wear-free, as there are no mechanical parts in direct contact with the moving object. They are also very precise and offer high repeat accuracy.
These sensors are used in various applications, such as in the automotive industry to measure vehicle positions, in robotics to control movements or in industry to monitor production processes.
A linear inductive displacement sensor consists of a coil that generates a magnetic field and a moving metal object that is brought into the vicinity of the coil. When the metal object moves, the inductive coupling between the coil and the object changes, which leads to a change in the measured electrical signal.
The principle behind the operation of the linear inductive displacement sensor is based on Faraday's law of electromagnetic induction. When the metal object moves, the magnetic field in the coil changes, which causes a change in the induced voltage in the coil. This change is then measured electronically and converted into a digital output that represents the measured distance.
The advantage of linear inductive displacement sensors is that they are contactless and wear-free, as there are no mechanical parts in direct contact with the moving object. They are also very precise and offer high repeat accuracy.
These sensors are used in various applications, such as in the automotive industry to measure vehicle positions, in robotics to control movements or in industry to monitor production processes.
What advantages do linear inductive displacement sensors offer compared to other sensors?
Linear inductive displacement sensors offer a number of advantages over other sensors, especially when it comes to measuring distances, positions or movements. Here are some of the most important advantages:
1. Non-contact measurement: Inductive displacement sensors do not use mechanical elements such as sliders or potentiometers. This means that they cannot wear out or be affected by dirt and therefore have a longer service life.
2. High accuracy: Inductive displacement sensors offer high resolution and accuracy when measuring distances or positions. They can typically work with an accuracy of a few micrometers.
3. Large measuring range: Inductive displacement sensors can cover large measuring ranges, which means that they are suitable for various applications where large distances need to be measured.
4. Robustness: Inductive displacement sensors are generally robust and can be used in environments with high temperatures, vibrations or shocks. They are often dust and waterproof and can therefore also be used in demanding environments.
5. Fast response time: Linear inductive displacement sensors offer a fast response time, which means that they can quickly detect changes in position or movement. This is particularly important in applications where fast movements need to be detected.
6. Simple integration: Inductive displacement sensors can be easily integrated into existing systems as they often have standardized interfaces and are compatible with various control systems.
Overall, linear inductive displacement sensors offer reliable and precise measurement of distances or positions in various applications, from manufacturing to automation technology.
1. Non-contact measurement: Inductive displacement sensors do not use mechanical elements such as sliders or potentiometers. This means that they cannot wear out or be affected by dirt and therefore have a longer service life.
2. High accuracy: Inductive displacement sensors offer high resolution and accuracy when measuring distances or positions. They can typically work with an accuracy of a few micrometers.
3. Large measuring range: Inductive displacement sensors can cover large measuring ranges, which means that they are suitable for various applications where large distances need to be measured.
4. Robustness: Inductive displacement sensors are generally robust and can be used in environments with high temperatures, vibrations or shocks. They are often dust and waterproof and can therefore also be used in demanding environments.
5. Fast response time: Linear inductive displacement sensors offer a fast response time, which means that they can quickly detect changes in position or movement. This is particularly important in applications where fast movements need to be detected.
6. Simple integration: Inductive displacement sensors can be easily integrated into existing systems as they often have standardized interfaces and are compatible with various control systems.
Overall, linear inductive displacement sensors offer reliable and precise measurement of distances or positions in various applications, from manufacturing to automation technology.
How are linear inductive displacement sensors used in different applications?
Linear inductive displacement sensors are used in various applications where accurate measurement of linear displacement or position is required. Here are some examples:
1. Automotive industry: Linear inductive displacement sensors are used in the automotive industry to measure the stroke of brake pedals, gas pedal pedals or clutch pedals, for example. They can also be used to measure the position of vehicle doors, seats or steering systems.
2. Mechanical engineering: In the mechanical engineering industry, linear inductive displacement sensors are used to measure linear movements in various machines. Examples include the position measurement of sliding tables, drilling or milling spindles, hydraulic cylinders or presses.
3. Medical technology: In medical technology, linear inductive displacement sensors are used for precise position measurement in medical devices, e.g. in imaging systems such as CT scanners or X-ray machines. They can also be used in prostheses or medical robots.
4. Aerospace: In the aerospace industry, linear inductive displacement sensors are used for position measurement in various applications, such as in aircraft flaps, landing flaps or control systems.
5. electronics and semiconductor industry: Linear inductive displacement sensors are used in the electronics and semiconductor industry to measure the position of components such as print heads, lasers or read/write heads in optical drives.
6. packaging industry: In the packaging industry, linear inductive displacement sensors are used to measure the position of packaging machines, e.g. to measure conveyor belt movements, sliding tables or closing mechanisms.
These are just a few examples of the application of linear inductive displacement sensors. The versatility of these sensors allows them to be used in a variety of industries and applications where accurate linear displacement measurement is required.
1. Automotive industry: Linear inductive displacement sensors are used in the automotive industry to measure the stroke of brake pedals, gas pedal pedals or clutch pedals, for example. They can also be used to measure the position of vehicle doors, seats or steering systems.
2. Mechanical engineering: In the mechanical engineering industry, linear inductive displacement sensors are used to measure linear movements in various machines. Examples include the position measurement of sliding tables, drilling or milling spindles, hydraulic cylinders or presses.
3. Medical technology: In medical technology, linear inductive displacement sensors are used for precise position measurement in medical devices, e.g. in imaging systems such as CT scanners or X-ray machines. They can also be used in prostheses or medical robots.
4. Aerospace: In the aerospace industry, linear inductive displacement sensors are used for position measurement in various applications, such as in aircraft flaps, landing flaps or control systems.
5. electronics and semiconductor industry: Linear inductive displacement sensors are used in the electronics and semiconductor industry to measure the position of components such as print heads, lasers or read/write heads in optical drives.
6. packaging industry: In the packaging industry, linear inductive displacement sensors are used to measure the position of packaging machines, e.g. to measure conveyor belt movements, sliding tables or closing mechanisms.
These are just a few examples of the application of linear inductive displacement sensors. The versatility of these sensors allows them to be used in a variety of industries and applications where accurate linear displacement measurement is required.
What attributes and features should be considered when selecting linear inductive displacement sensors?
When selecting linear inductive displacement sensors, the following attributes and characteristics must be taken into account:
1. Measurement range: The desired measuring range should cover the required distance or position of the object to be measured.
2. Resolution: The resolution indicates how accurately the sensor can measure the distance. The higher the resolution, the more precise the measurement.
3. Linearity: The linearity indicates how accurately the sensor can measure the distance linearly. High linearity means that the sensor is very accurate and has no deviations.
4. Reproducibility: Reproducibility describes the ability of the sensor to deliver the same value for repeated measurements. High reproducibility is important to ensure accurate and reliable measurements.
5. Robustness: The sensor should be robust and protected against external influences such as vibrations, shocks or temperature fluctuations. This is important to ensure reliable measurement even under difficult conditions.
6. Connection options: The sensor should have suitable connection options to enable easy integration into the existing system.
7. Costs: The cost of the sensor should be proportionate to the required performance and the specific requirements.
8. Reliability and service life: The sensor should be highly reliable and have a long service life to ensure smooth operation over a long period of time.
9. Environmental factors: Depending on the application environment, specific requirements may be placed on the sensor, e.g. with regard to the degree of protection against moisture or dust.
10. Availability and support: It is important to ensure that the chosen sensor is also available in the long term and has good technical support to assist with any questions or problems.
1. Measurement range: The desired measuring range should cover the required distance or position of the object to be measured.
2. Resolution: The resolution indicates how accurately the sensor can measure the distance. The higher the resolution, the more precise the measurement.
3. Linearity: The linearity indicates how accurately the sensor can measure the distance linearly. High linearity means that the sensor is very accurate and has no deviations.
4. Reproducibility: Reproducibility describes the ability of the sensor to deliver the same value for repeated measurements. High reproducibility is important to ensure accurate and reliable measurements.
5. Robustness: The sensor should be robust and protected against external influences such as vibrations, shocks or temperature fluctuations. This is important to ensure reliable measurement even under difficult conditions.
6. Connection options: The sensor should have suitable connection options to enable easy integration into the existing system.
7. Costs: The cost of the sensor should be proportionate to the required performance and the specific requirements.
8. Reliability and service life: The sensor should be highly reliable and have a long service life to ensure smooth operation over a long period of time.
9. Environmental factors: Depending on the application environment, specific requirements may be placed on the sensor, e.g. with regard to the degree of protection against moisture or dust.
10. Availability and support: It is important to ensure that the chosen sensor is also available in the long term and has good technical support to assist with any questions or problems.
What measuring ranges and accuracies can be achieved with linear inductive displacement sensors?
Linear inductive displacement sensors typically have measuring ranges from a few millimeters to several meters. The accuracy can vary depending on the model and application, but is normally in the range of a few micrometers to a few tenths of a millimeter.
It should be noted that the accuracy of linear inductive displacement sensors depends on various factors, such as the quality of the sensor, the ambient temperature, the alignment of the sensor and the mounting. In some cases, calibration may also be necessary to achieve the best possible accuracy.
It should be noted that the accuracy of linear inductive displacement sensors depends on various factors, such as the quality of the sensor, the ambient temperature, the alignment of the sensor and the mounting. In some cases, calibration may also be necessary to achieve the best possible accuracy.
What challenges can arise when installing and calibrating linear inductive displacement sensors?
Various challenges can arise during the installation and calibration of linear inductive displacement sensors. Some possible problems are:
1. Mechanical alignment: Precise alignment of the sensor along the measuring axis is crucial to achieving accurate measurement results. Incorrect alignment can lead to measurement errors.
2. Electrical connection: A faulty or loose connection between the sensor and the evaluation unit can lead to signal interference or data loss.
3. Signal interference: Inductive displacement sensors can be susceptible to electromagnetic interference. Nearby electrical devices or cables can interfere with the sensor signal. Suitable shielding or removal of interfering sources is required.
4. Calibration: Accurate calibration of the sensor is important in order to achieve precise measurement results. Missing or inaccurate calibration can lead to measurement errors.
5. Environmental influences: Temperature changes, vibrations or humidity can affect the measuring accuracy. The sensor may need to be protected or shielded accordingly.
6. Wear and tear: Prolonged use can wear out the sensor and impair its performance and accuracy. Regular maintenance and, if necessary, replacement are required.
It is important to keep these potential challenges in mind and take appropriate measures to ensure accurate and reliable measurement results.
1. Mechanical alignment: Precise alignment of the sensor along the measuring axis is crucial to achieving accurate measurement results. Incorrect alignment can lead to measurement errors.
2. Electrical connection: A faulty or loose connection between the sensor and the evaluation unit can lead to signal interference or data loss.
3. Signal interference: Inductive displacement sensors can be susceptible to electromagnetic interference. Nearby electrical devices or cables can interfere with the sensor signal. Suitable shielding or removal of interfering sources is required.
4. Calibration: Accurate calibration of the sensor is important in order to achieve precise measurement results. Missing or inaccurate calibration can lead to measurement errors.
5. Environmental influences: Temperature changes, vibrations or humidity can affect the measuring accuracy. The sensor may need to be protected or shielded accordingly.
6. Wear and tear: Prolonged use can wear out the sensor and impair its performance and accuracy. Regular maintenance and, if necessary, replacement are required.
It is important to keep these potential challenges in mind and take appropriate measures to ensure accurate and reliable measurement results.
What technologies and innovations are there in terms of linear inductive displacement sensors?
There are several technologies and innovations in the field of linear inductive displacement sensors. Here are some examples:
1. Magnetostrictive displacement sensors: These sensors use the principle of magnetostrictive technology, in which a magnetic wave is sent through the material of the sensor. Applying a magnetic field changes the length of the shaft, which can be used as a measured variable for the sensor's displacement.
2. Eddy current displacement sensors: These sensors use the principle of eddy current induction, in which an alternating current flows through a coil and generates a magnetic eddy current in a conductive material. The path of the sensor can be measured by the change in eddy current.
3. Capacitive displacement sensors: These sensors use the principle of capacitance change when an object moves in the vicinity of the sensor. The path of the sensor can be determined by measuring the change in capacitance.
4. Optical displacement sensors: These sensors use the principle of optical detection, in which a light source and a receiver are used to measure the path of the sensor. The path of the sensor can be determined by analyzing the light reflection or absorption.
5. Ultrasonic displacement sensors: These sensors use the principle of ultrasonic waves to measure the path of the sensor. By measuring the transit time of ultrasonic waves between the transmitter and receiver, the path of the sensor can be determined.
These technologies and innovations have made it possible to use linear inductive displacement sensors in various applications, such as in the automotive industry, medical technology, robotics and the mechanical engineering industry. They provide precise and reliable measurements of the path and enable accurate control and monitoring of movements.
1. Magnetostrictive displacement sensors: These sensors use the principle of magnetostrictive technology, in which a magnetic wave is sent through the material of the sensor. Applying a magnetic field changes the length of the shaft, which can be used as a measured variable for the sensor's displacement.
2. Eddy current displacement sensors: These sensors use the principle of eddy current induction, in which an alternating current flows through a coil and generates a magnetic eddy current in a conductive material. The path of the sensor can be measured by the change in eddy current.
3. Capacitive displacement sensors: These sensors use the principle of capacitance change when an object moves in the vicinity of the sensor. The path of the sensor can be determined by measuring the change in capacitance.
4. Optical displacement sensors: These sensors use the principle of optical detection, in which a light source and a receiver are used to measure the path of the sensor. The path of the sensor can be determined by analyzing the light reflection or absorption.
5. Ultrasonic displacement sensors: These sensors use the principle of ultrasonic waves to measure the path of the sensor. By measuring the transit time of ultrasonic waves between the transmitter and receiver, the path of the sensor can be determined.
These technologies and innovations have made it possible to use linear inductive displacement sensors in various applications, such as in the automotive industry, medical technology, robotics and the mechanical engineering industry. They provide precise and reliable measurements of the path and enable accurate control and monitoring of movements.
What future prospects and trends can be expected for linear inductive displacement sensors?
The future prospects for linear inductive displacement sensors are very promising. These sensors are often used in the automation industry to carry out precise displacement measurements. Inductive displacement sensors offer high resolution, accuracy and repeatability, making them a preferred choice for applications where precise measurements are required.
One trend that can be expected in the future is the miniaturization of sensors. Smaller sensors allow integration into tighter spaces and offer flexibility in terms of placement. This is particularly relevant for applications where the available space is limited.
Another trend is wireless communication. In the future, inductive displacement sensors can be equipped with wireless communication protocols that enable easy integration into networks and the transmission of measurement data. This makes it easier to monitor and control the sensors and enables remote monitoring and control.
In addition, the accuracy of the sensors is expected to be further improved. By using advanced materials and technologies, inductive displacement sensors can offer even greater accuracy and repeatability. This is particularly important for applications where precise measurements are required, such as in medical technology or robotics.
Overall, the future prospects for linear inductive displacement sensors are promising, as they offer high accuracy, precision and reliability. Miniaturization, wireless communication and improved accuracy are trends that are expected in the future.
One trend that can be expected in the future is the miniaturization of sensors. Smaller sensors allow integration into tighter spaces and offer flexibility in terms of placement. This is particularly relevant for applications where the available space is limited.
Another trend is wireless communication. In the future, inductive displacement sensors can be equipped with wireless communication protocols that enable easy integration into networks and the transmission of measurement data. This makes it easier to monitor and control the sensors and enables remote monitoring and control.
In addition, the accuracy of the sensors is expected to be further improved. By using advanced materials and technologies, inductive displacement sensors can offer even greater accuracy and repeatability. This is particularly important for applications where precise measurements are required, such as in medical technology or robotics.
Overall, the future prospects for linear inductive displacement sensors are promising, as they offer high accuracy, precision and reliability. Miniaturization, wireless communication and improved accuracy are trends that are expected in the future.