RC-Sensoren - Analog - reflexionskompensiert

Reflectance Compensated Models – Analog Output

For more detailed descriptions, please download the datasheet of the corresponding model (klick on the name).

  * Standard Specifications provide nominal values only. Actual production values may vary by as much as ±15 %.

** These specifications represent best case performance where:

• the target is flat, smooth and highly reflective,
• the sensor is perpendicular to the target,
• the sensor is gapped to its range of highest sensitivity,
• fiberoptic cable lengths are standard and the cable is not connectorized.

Reflectance Compensated Models – Digital Output

For more detailed descriptions, please download the datasheet of the corresponding model (klick on the name).

 NOTES:
  * These specifications represent best case performance where:

• the target is flat, smooth and highly reflective
• the sensor is perpendicular to the target
• the sensor is gapped to its range of highest sensitivity (~mid-range)
• fiberoptic cable lengths are standard and the cables are not connectorized

** DMS Control Software includes a data averaging filter for averaging data samples from: 2 samples (the fastest rate) to 4096 samples (best resolution).

RC Model Analog Options

Analog sensors are fast responding units ideal for relative motion measurements in dynamic applications:

• DC-20 KHz is standard
• DC-200 KHz or higher is optional
• DC-100 Hz provides best resolution

Standard analog units include:

• Electronics with 0 to +5 VDC output
• 3 foot long fiberoptic cable

ANALOG OUTPUT

Calibration charts are provided with each sensor tip giving the near and far side voltage output responses to distance. There are three ways to derive accurate distance measurements:

1. within the bounds of the linear range, multiply sensitivity by the change in voltage output
2. create a lookup table using the XY calibration data points
3. use a polynomial curve fit to accurately map the sensor's output function

The effect of changing target reflectance is to shift the voltage output higher or lower. A gain control is provided for calibration of the sensor output to various target surfaces. Insitu calibration is performed simply, by adjusting the sensor's tip-to-target gap until the peak output is attained, and then by using the gain control to set the peak voltage reading to full scale. This allows the sensor to be used to perform precision linear motion measurements on most materials.

RC Model Digital Options

Displacement Measurement Systems (DMS) are the best choice for absolute distance measurements, multiplexing and process control applications, with data rates up to 5,000 readings/second. They provide linearized distance output and on board calibration storage capacity for 25 calibrations. Three types are available, each equipped with temperature stabilized electronics:

Standard DMS Units Include:

• Electronics with RS-232 communication
• Keypad/LCD for local operation

Mini-DMS Units:

Mini-DMS units are full-featured for PC operation via RS232 communication, they are not equipped with keypad/display.

muDMS Units:

muDMS units are full-featured for PC operation via USB communication, they are not equipped with keypad/display. They are supplied in the analog RC sensor enclosure shown below.