Kaman’s KD-5100 differential impedance position/displacement measuring systems offer significant advancements in precision measurement technology, providing exceptional resolution, repeatability, and reliability for detecting the position of a conductive target relative to a pair of non-contacting sensors. Two precisely matched sensors per channel give resolution to a nanometer, and measure without contacting the target. In addition, the inductive eddy current technology on which these sensors are built is unaffected by radiation and environmental contaminants such as water vapor, oil, gas, shavings, etc.
For differential measurement applications, two precisely matched sensors per channel are positioned on opposite sides or ends of a target. In this sensor-to-target relationship, as the target moves away from one sensor, it moves toward the other an equal amount. Output is differential and bipolar. Kaman offers the KD-5100 system with a choice of two sensors: the 15N and the 20N.
The Kaman system offers superior thermal and long-term stability of 5×10-6 inches/month or better, plus high sensitivity up to 10 V/mil. The small package size (2 x 2.12 x 0.75 inches) makes this system ideal for applications where space is a limiting factor. A low power consumption of less than 2W @ ±15 Vdc is typical. Both sensors and the KD-5100 electronics are used in vacuum applications down to 10-6 Torr.
The KD-5100 is manufactured to MIL-H-38534, and MIL-SPEC components are utilized throughout the electronics module wherever possible. The KD-5100 features rugged construction with an MTBF of better than 55,000 hours in a tactical environment and 238,000 hours in a high-reliability environment. Kaman builds an alternate version of the 20N sensor specifically for cryogenic applications, with confirmed optimum performance in liquid nitrogen at 70° Kelvin.
Kaman Precision Products
Filed Under: Sensors (position + other), Test + measurement • test equipment
Tell Us What You Think!