For applications in which the measurement object moves along the sensor axis.
D sensors provide an output signal that is proportional to the distance and reflectance of the object surface. The output function provides two usable operating ranges: In near side operation, the highest resolution is achieved, while at far side the distances high sensitivity is available in a larger working range.
Areas of application for D sensors are, for example:
- Motion detection of the actuators
- Vibration in the ball bearing
- Deflection of the membrane
- Distance measurement in liquid
- Dynamic inspection on the fuel injector
- Penetration study and stroke study
- Positioning of parts
- Vibration investigation on the piezocrystal
- Piston Position Detection (TDC)
- Piston travel
- Detecting scratches
- Servo control
- Coil deflection
- Speed measurement
- Measuring the vibration in the ultrasonic range
- Control of the process in a vacuum
- Valve characteristic and valve lift measurement
- Automatic parts inspection
- Computer hard disk mounting
- Deformation study
- Distance to glass
- Distance to paper
- Distance to plastic
- Dynamic expansion
D-type sensors are fast-acting sensors that are ideal for dynamic applications with uniaxial movement, such as those found in actuators, pistons, and valves.
DC-20KHz is standard
DC-200KHz or higher is optional
DC-100 Hz provides the best resolution
Standard analog sensor units include:
Electronics with 0 to +5 VDC output
1 meter long fiber optic cable
The output voltage function for D-model sensors includes a near range where the voltage increases with distance, an optical peak range, and a far range where the output voltage decreases with distance.
Operation at close range results in high sensitivity with a limited measuring range. Long-range operation gives moderate sensitivity with a larger measurement range.
Model | Tip Diameter | Total Range | Near Side Range | Near Side Resolution at 100Hz | Far Side Range | Far Side Resolution at 100Hz |
|---|---|---|---|---|---|---|
mm | mm | mm | µm | mm | µm | |
D6 | 0.56 | 1 | 0.2 | 0.080 | 0.8 | 0.15 |
D12 | 0.56 | 2 | 0.25 | 0.008 | 1.75 | 0.10 |
D20 | 0.81 | 1.3 | 0.12 | 0.008 | 1.15 | 0.04 |
D21 | 0.81 | 2 | 0.25 | 0.015 | 1.75 | 0.15 |
D47 | 1.61 | 5 | 0.3 | 0.010 | 4.7 | 0.10 |
D63 | 3.18 | 3 | 0.15 | 0.002 | 2.85 | 0.13 |
D64 | 3.18 | 6 | 0.25 | 0.008 | 5.8 | 0.13 |
D100 | 3.18 | 10 | 0.4 | 0.013 | 9.6 | 0.2 |
D125 | 3.96 | 15 | 0.4 | 0.002 | 14.6 | 0.13 |
D169 | 4.76 | 20 | 0.5 | 0.008 | 19.5 | 1.25 |
D170 | 4.76 | 30 | 0.9 | 0.008 | 29.1 | 0.6 |
D171 | 4.76 | 50 | 9.5 | 0.13 | 40.5 | 0.6 |
D240 | 7.92 | 76 | 14 | 0.5 | 62 | 1 |
Model | Tip Diameter | Total Range | Near Side Range | Near Side Resolution at ADC AVG 4096 | Far Side Range | Far Side Resolution ADC AVG 4096 |
|---|---|---|---|---|---|---|
mm | mm | mm | nm | mm | nm | |
DMS-D6 | 0.56 | 1 | 0.25 | 5 | 1 | 35 |
DMS-D12 | 0.56 | 2 | 0.25 | 2.5 | 1.75 | 15 |
DMS-D20 | 0.81 | 1.3 | 0.12 | 2.5 | 1.15 | 8 |
DMS-D21 | 0.81 | 2 | 0.25 | 2.5 | 1.75 | 15 |
DMS-D47 | 1.61 | 5 | 0.3 | 2.5 | 4.7 | 40 |
DMS-D63 | 3.18 | 3 | 0.15 | 0.5 | 2.85 | 10 |
DMS-D64 | 3.18 | 6 | 0.25 | 0.3 | 5.8 | 15 |
DMS-D100 | 3.18 | 10 | 0.4 | 5 | 9.6 | 15 |
DMS-D125 | 3.96 | 15 | 0.4 | 1 | 14.6 | 15 |
DMS-D169 | 4.76 | 20 | 0.5 | 5 | 19.5 | 80 |
DMS-D170 | 4.76 | 30 | 0.9 | 10 | 29.1 | 130 |
DMS-D171 | 4.76 | 50 | 9.5 | 50 | 40.5 | 100 |
DMS-D240 | 7.92 | 76 | 14 | 150 | 62 | 250 |