| Resolution | 0.5 µm |
| Non-linearity (±) | 0.02 % |
| Type | Path sensor without return spring |
Path sensor, inductive
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| Non-linearity (±) | 0.25 % |
| Resolution | 0.1 µm |
| Frequency range | 200 Hz |
| Non-linearity (±) | 0.25 % |
| Measuring force (horizontal) | 784 N |
| Frequency range | 200 Hz |
| Measuring force (horizontal) | 784 N |
| Non-linearity (±) | 0.1 to 0.25 % |
| Frequency range | 10 Hz |
| Resolution | 0.1 µm |
| Non-linearity (±) | 0.25 % |
| Frequency range | 10 Hz |
| Resolution | 0.1 µm |
| Non-linearity (±) | 0.15 % |
| Frequency range | 5 Hz |
| Non-linearity (±) | 0.25 % |
| Resolution | 0.1 µm |
| Frequency range | 200 Hz |
| Resolution | 0.1 µm |
| Non-linearity (±) | 0.25 % |
| Frequency range | 10 Hz |
| Non-linearity (±) | 0.25 % |
| Resolution | 0.1 µm |
| Frequency range | 10 Hz |
| Non-linearity (±) | 0.25 to 0.5 % |
| Frequency range | 40 kHz |
| Sensitivity | 60 to 130 mV/V /mm |
| Non-linearity (±) | 0.25 % |
| Frequency range | 1 kHz |
| Type | Path sensor with return spring |
| Pressure-resistant up to | 350 bar |
| Non-linearity (±) | 0.1 to 0.5 % |
| Frequency range | 5 kHz |
| Non-linearity (±) | 0.1 to 1 % |
| Frequency range | 5 kHz |
| Supply voltage (sensors with integrated amplifier) | 1 to 24 V |
| Non-linearity (±) | 0.1 to 0.5 % |
| Frequency range | 15 Hz |
| Bridge type | Half bridge |
| Non-linearity (±) | 0.25 to 0.5 % |
| Frequency range | 100 Hz |
| Bridge type | Full bridge |
| Non-linearity (±) | 0.1 to 0.5 % |
| Frequency range | 15 Hz |
| Nominal parameter | 80 mV/V |
| Measuring force (Downward mounting) | 0.3 N |
| Measuring force (Upward mounting) | 0.2 N |
| Measuring force (horizontal) | 0.25 N |
| Resolution | 0.8 to 2 µm |
| Non-linearity (±) | 0.1 to 0.2 % |
| Frequency range | 5 kHz |
| Measuring force (Downward mounting) | 0.35 N |
| Measuring force (Upward mounting) | 0.25 N |
| Measuring force (horizontal) | 0.3 N |
| Measuring force (Downward mounting) | 1 N |
| Measuring force (Upward mounting) | 0.8 N |
| Measuring force (horizontal) | 0.9 N |
Inductive path sensors, also known as LVDT path sensors, are path sensors (LVDT = Linear Variable Differential Transformer). They are used for position determination and path measurement. Inductive path sensors are absolute measuring sensors. The current position information is available immediately after the supply voltage is applied. Inductive path sensors are robustly constructed. They can also be used, e.g., in situations where high acceleration forces and vibrations occur.
What is a travel sensor and how does it work?
A displacement sensor is a sensor that is used to detect the position or movement of an object. It is also known as a position measuring system, linear position sensor or linear potentiometer.
The displacement sensor consists of a fixed part, which serves as the housing, and a moving part, which is connected to the object to be measured. Between these two parts is an electrically conductive material that acts as a resistance element, usually a potentiometer.
When the object moves, the position of the moving part changes and so does the electrical resistance of the resistance element. This resistance value is then measured using an electronic circuit and converted into a proportional electrical output voltage or a digital value.
The output signals of the limit switch can be used to control machines or devices. For example, they enable the position control of tools in CNC machines or the control of stepper motors in robots.
There are various types of travel sensors, including resistive travel sensors, magnetic travel sensors and optical travel sensors. Each type has its own specific attributes and areas of application, but the basic principle of measuring position or movement remains the same for all of them.
The displacement sensor consists of a fixed part, which serves as the housing, and a moving part, which is connected to the object to be measured. Between these two parts is an electrically conductive material that acts as a resistance element, usually a potentiometer.
When the object moves, the position of the moving part changes and so does the electrical resistance of the resistance element. This resistance value is then measured using an electronic circuit and converted into a proportional electrical output voltage or a digital value.
The output signals of the limit switch can be used to control machines or devices. For example, they enable the position control of tools in CNC machines or the control of stepper motors in robots.
There are various types of travel sensors, including resistive travel sensors, magnetic travel sensors and optical travel sensors. Each type has its own specific attributes and areas of application, but the basic principle of measuring position or movement remains the same for all of them.
Which materials can be measured with an inductive displacement sensor?
An inductive displacement sensor can be used to measure the distance or position of metallic objects. It can therefore work with materials such as iron, steel, aluminium, copper and other magnetizable metals. However, non-metallic materials such as plastics, wood or glass cannot be measured with an inductive displacement sensor as they are not magnetic.
How accurate is the measurement with an inductive displacement sensor?
An inductive displacement sensor is a measuring device that is used to measure the exact position of an object. It is based on the principle of inductive sensor technology, in which magnetic fields are used to determine the position of the object.
The inductive displacement sensor consists of a sensor and a measurement object. The sensor generates a magnetic field that is detected by a coil in the target. By changing the magnetic field, the sensor can determine the exact position of the measured object.
Measurement with an inductive displacement sensor is very accurate and precise. The sensor can detect the smallest changes in the position of the measured object and display them in real time. Measurements can be made in micrometers or even nanometers, depending on the accuracy of the displacement sensor.
The accuracy of the measurement depends on various factors, such as the quality of the sensor, the ambient temperature and the mechanical attributes of the object being measured. It is important to calibrate the displacement transducer correctly and ensure that it is used in a stable environment to ensure the accuracy of the measurements.
Overall, measurement with an inductive displacement sensor is very accurate and reliable. It is used in many industrial applications where precise position measurements are required, such as in the automotive industry, robotics or medical technology.
The inductive displacement sensor consists of a sensor and a measurement object. The sensor generates a magnetic field that is detected by a coil in the target. By changing the magnetic field, the sensor can determine the exact position of the measured object.
Measurement with an inductive displacement sensor is very accurate and precise. The sensor can detect the smallest changes in the position of the measured object and display them in real time. Measurements can be made in micrometers or even nanometers, depending on the accuracy of the displacement sensor.
The accuracy of the measurement depends on various factors, such as the quality of the sensor, the ambient temperature and the mechanical attributes of the object being measured. It is important to calibrate the displacement transducer correctly and ensure that it is used in a stable environment to ensure the accuracy of the measurements.
Overall, measurement with an inductive displacement sensor is very accurate and reliable. It is used in many industrial applications where precise position measurements are required, such as in the automotive industry, robotics or medical technology.
What are the advantages and disadvantages of using an inductive displacement sensor compared to other measuring technologies?
An inductive displacement sensor has several advantages and disadvantages compared to other measuring technologies:
Advantages:
1. High accuracy: Inductive displacement sensors can provide very accurate measurement results as they are based on the evaluation of electromagnetic interactions.
2. Non-contact based measurement: As an inductive displacement sensor works without physical contact, there is no wear and tear and the measurement can be contactless.
3. Robustness: Inductive displacement sensors are very robust and can be used in environments where other sensors such as optical or capacitive sensors would not work well, for example in the presence of dirt, oil or vibrations.
4. High speed: Inductive displacement sensors can also measure reliably during fast movements, as they generally have very fast response times.
Disadvantages:
1. Limited measuring range: Inductive displacement sensors normally have a limited measuring range, which can vary depending on the sensor. In some cases, this can be a disadvantage if larger measuring ranges are required.
2. Sensitivity to magnetic materials: Inductive displacement sensors can react sensitively to magnetic materials, which can lead to measurement errors if such materials are in the vicinity of the sensor.
3. Costs: Inductive displacement sensors can be more expensive than other sensors such as potentiometric or optical sensors.
4. Complexity of the installation: The installation of an inductive travel sensor may require a little more effort and specialist knowledge, as they usually require separate electronics and cabling to evaluate the sensor.
These advantages and disadvantages should be taken into account when selecting a suitable travel sensor for a specific application.
Advantages:
1. High accuracy: Inductive displacement sensors can provide very accurate measurement results as they are based on the evaluation of electromagnetic interactions.
2. Non-contact based measurement: As an inductive displacement sensor works without physical contact, there is no wear and tear and the measurement can be contactless.
3. Robustness: Inductive displacement sensors are very robust and can be used in environments where other sensors such as optical or capacitive sensors would not work well, for example in the presence of dirt, oil or vibrations.
4. High speed: Inductive displacement sensors can also measure reliably during fast movements, as they generally have very fast response times.
Disadvantages:
1. Limited measuring range: Inductive displacement sensors normally have a limited measuring range, which can vary depending on the sensor. In some cases, this can be a disadvantage if larger measuring ranges are required.
2. Sensitivity to magnetic materials: Inductive displacement sensors can react sensitively to magnetic materials, which can lead to measurement errors if such materials are in the vicinity of the sensor.
3. Costs: Inductive displacement sensors can be more expensive than other sensors such as potentiometric or optical sensors.
4. Complexity of the installation: The installation of an inductive travel sensor may require a little more effort and specialist knowledge, as they usually require separate electronics and cabling to evaluate the sensor.
These advantages and disadvantages should be taken into account when selecting a suitable travel sensor for a specific application.
How is an inductive displacement sensor calibrated and how often should this be done?
An inductive displacement sensor is usually calibrated by adjusting the zero position. The button is placed at a reference position and the output of the sensor is set to zero. This is normally achieved by turning an adjustment screwdriver or by software calibration.
Calibration should be carried out regularly to ensure that the inductive displacement sensor provides correct and reliable measurement results. The frequency of calibration depends on various factors, such as the accuracy requirement, the environment in which the sensor is used and the wear rate of the sensor. It is generally recommended to calibrate the push-button at least once a year. However, calibration should be carried out more frequently in heavily used environments or if there are signs of inaccuracies.
Calibration should be carried out regularly to ensure that the inductive displacement sensor provides correct and reliable measurement results. The frequency of calibration depends on various factors, such as the accuracy requirement, the environment in which the sensor is used and the wear rate of the sensor. It is generally recommended to calibrate the push-button at least once a year. However, calibration should be carried out more frequently in heavily used environments or if there are signs of inaccuracies.
What areas of application are there for inductive travel sensors?
Inductive travel sensors are mainly used in automation technology. Here are some possible areas of application:
1. Position detection: Inductive displacement sensors can be used to detect the position of moving parts in a machine. For example, they can be used in machine tools to monitor the position of the tool relative to the workpiece.
2. Piece counter: Inductive displacement sensors can be used to count the number of parts produced. They can be used in conjunction with conveyor belts or other production lines to ensure that the correct number of parts are produced.
3. Level measurement: Inductive displacement sensors can be used to measure the fill level of liquids or granulates in containers. They can be installed in tanks or silos to monitor the fill level and trigger alarms if necessary.
4. Security systems: Inductive limit switches can be used in safety systems to monitor the status of doors, flaps or other safety devices. They can be used to ensure that the safety devices are properly closed before a machine can be started.
5. Robotics: Inductive displacement sensors can be used in robotics to monitor the position of robot arms or other moving parts. They can be used to ensure that the robot arm is in the desired position and to avoid collisions.
This list is not exhaustive and there are many other possible areas of use for inductive travel sensors, depending on the specific requirements of an application.
1. Position detection: Inductive displacement sensors can be used to detect the position of moving parts in a machine. For example, they can be used in machine tools to monitor the position of the tool relative to the workpiece.
2. Piece counter: Inductive displacement sensors can be used to count the number of parts produced. They can be used in conjunction with conveyor belts or other production lines to ensure that the correct number of parts are produced.
3. Level measurement: Inductive displacement sensors can be used to measure the fill level of liquids or granulates in containers. They can be installed in tanks or silos to monitor the fill level and trigger alarms if necessary.
4. Security systems: Inductive limit switches can be used in safety systems to monitor the status of doors, flaps or other safety devices. They can be used to ensure that the safety devices are properly closed before a machine can be started.
5. Robotics: Inductive displacement sensors can be used in robotics to monitor the position of robot arms or other moving parts. They can be used to ensure that the robot arm is in the desired position and to avoid collisions.
This list is not exhaustive and there are many other possible areas of use for inductive travel sensors, depending on the specific requirements of an application.
What factors can influence the measurement results of an inductive displacement sensor?
The measurement results of an inductive displacement sensor can be influenced by various factors, including
1. Material of the object to be measured: The electrical attributes of the material, such as conductivity and permeability, can influence the measurement accuracy.
2. Distance to the object: The position of the displacement sensor in relation to the object to be measured can influence the measurement results. A distance that is too large or too small can lead to inaccurate measurements.
3. Surface finish: Unevenness, dirt or coatings on the surface of the object to be measured can impair the measuring accuracy.
4. Environmental influences: Electromagnetic interference fields, vibrations or temperature fluctuations can influence the measurement results.
5. Quality of the travel sensor: The accuracy and stability of the displacement sensor itself can influence the measurement results. A high-quality displacement sensor can provide more accurate measurements.
6. Calibration: Incorrect calibration of the displacement sensor can lead to inaccurate measurement results. It is therefore important to check and calibrate the device regularly.
It is important to take these factors into account when using an inductive displacement sensor in order to obtain accurate and reliable measurement results.
1. Material of the object to be measured: The electrical attributes of the material, such as conductivity and permeability, can influence the measurement accuracy.
2. Distance to the object: The position of the displacement sensor in relation to the object to be measured can influence the measurement results. A distance that is too large or too small can lead to inaccurate measurements.
3. Surface finish: Unevenness, dirt or coatings on the surface of the object to be measured can impair the measuring accuracy.
4. Environmental influences: Electromagnetic interference fields, vibrations or temperature fluctuations can influence the measurement results.
5. Quality of the travel sensor: The accuracy and stability of the displacement sensor itself can influence the measurement results. A high-quality displacement sensor can provide more accurate measurements.
6. Calibration: Incorrect calibration of the displacement sensor can lead to inaccurate measurement results. It is therefore important to check and calibrate the device regularly.
It is important to take these factors into account when using an inductive displacement sensor in order to obtain accurate and reliable measurement results.