8718Potentiometric displacement sensor
High resolution for every deflection! Even with large displacements, the precise and linear displacement measurement enables reliable results. Compact and rodless - ideal for demanding applications.
Productinformation
| Principle |
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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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| Specific characteristics |
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Due to the high resolution, even with large deflections, accurate and linear displacement measurements can be carried out even with long displacements. Conversions from rotational to translational movements via ball screws, wire or cord connections and the like are not necessary with direct displacement measurement.
Areas of application are e.g:
- Hydraulic and pneumatic cylinders
- Position determination on coordinate inspection machines
- Punch, toggle lever and extruder travels
- Winding and unwinding lengths
- Chassis strokes
- Metering strokes
Displacement sensors model 8718 with their conductive plastic track are suitable for the direct, accurate and absolute measurement of distances and lengths.
The resistance tracks are trimmed in special processes for low friction, low stick-slip tendency, abrasion resistance and long-term constancy.
The vibration-damped slider allows clear signalling even with slight vibrations and at adjustment speeds of up to 10 m/s. Due to the simplicity of the design, the sensor is largely protected against electrical interference fields (aluminium cabinet), retains the measured value after mains interruptions and does not generate any electrical interference.
A magnetically held steel band covers the measuring arrangement without a gap. Lateral forces are avoided by a ball coupling mounted on the sensor.
- 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.
