8709Potentiometric displacement sensor (miniature version)
Compact and durable! With a housing diameter of 12.7 mm, predestined for space-saving integration. Developed for a durability of 10⁸ movements and an adjustment speed of up to 10 m/s - precise, fast and reliable.
Productinformation
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| Measuring range |
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| Signal output |
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| Protection class |
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| Range of operating temperature |
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| Supply voltage |
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| Electrical connection |
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| Return spring |
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Potentiometric displacement sensors are designed for the direct and accurate measurement of mechanical displacements. The mechanical measuring device must be designed in such a way that the push rod is flexible and free of clearance and lateral forces.
A special multi-finger wiper ensures good contact even at high adjustment speeds and with vibration. Thanks to its housing diameter of just 12.7 mm, model 8709 is also suitable for very compact structures.
The movable mounting clamps allow the user to mount the sensor variably and without complications.
Optionally available adaptation options, such as flange and ball joint versions, extend the range of possible applications and round off the field of application.
Areas of application are
- Stroke measurements on riveting machines
- Detection of press-in paths
- Compensation measurements on bearings
- Spring travel measurements on axles
- Displacement measurement on lifting platforms
- Length measurement on tube bending machines
Due to their technology, potentiometric displacement sensors always work with a wiper system. The resistance tracks are trimmed in special processes for low friction, low stick-slip tendency, abrasion resistance and long-term constancy.
The push rods are guided in durable, low-friction and close-tolerance plain bearings; this ensures high accuracy. Transverse force
- High-speed switching outputs
- Mathematical function
- High sampling rate
- Measured values can be transferred via PROFIBUS, RS232, USB or analog output
TASK
The flatness of a workpiece needs to be measured. To do this, measurements must be taken at three points to determine whether the workpiece is within tolerance. The results from these measurement points are compared using an electronic analysis unit. If the workpiece surface is found to be out of tolerance, the unit must immediately indicate the point at which the maxima have been exceeded. In addition, a visual display is required to make it easier to identify such workpieces.
SPECIFIC REQUIREMENT
High sampling rate, high-speed switching of limits.
SOLUTION
burster displacement transducers are used at the three measurement points. All displacement transducers from the burster range are suitable for use here. A SENSORMASTER 9163, with two main inputs, performs the analysis. The unit uses the two mathematical functions "Fin.A" and "Fin.B" to determine the mean values. To do this, the user assigns each of the inputs and the function "Fin.B" to a limit switch. These switches are configured as a direct-switching, symmetric alarm with hysteresis for minimum and maximum values. The process-value display can be configured to show a change in display colour as soon as one of the limit switches is active. In this case, the limit indicators show which measurement value is out of tolerance. Using the RS232 option with the 9163-P100 measurement data software, a PC can be employed to log and archive the measurements. This process can be automated by the controller communication tool included in the software.
Branchen
Extras
Calibrate
Customised and tailored to the diverse requirements placed on quality systems in your industry.
Compensation
We ensure that the output signal corresponds to its specified value in the unloaded state and at nominal load.
Implementation
We support you with on-site implementation so that you can start production quickly and reliably.
MySensor / OEM sensors
The customised solution when no standard sensor meets your requirements. The exclusive solution - just for you.
