Non-Contact Sheet Resistance Instrumentation

Multiple 20J3 Inline Sheet Resistance Meters

multiple eddy current sensors measure Ohms/sq inline, in real time, and without contact eddy current sensor measuring sheet resistance of a thin film in a vacuum coater Optional PCs for use in monitoring atmosphere or vacuum coating in real time inline software to record sheet resistance of web of material in real time

Multiple Inline Non-Contact Eddy Current Resistivity Meters for Thin Materials—Measure and Record at Multiple Points

  • Non-contact measurement of Ohms/sq, Ohms-cm, resistivity, thickness, and more
  • Great for monitoring cross-web and down-web consistency
  • Monitor and control 3 or more sensors with one system
  • Works in vacuum or atmosphere, wet or dry processes
  • Choose sensors in one of four ranges from .005 Ohms/sq to 100,000 Ohms/sq—add other sensors later
  • Real time monitoring of moving materials via PC or LAN

Four Ranges to Choose From

Up to 4.5 significant digits available, depending on instrument range:

Instrument Range Dynamic Range in Ohms/sq Significant Digits Available at Each Rrder of Magnitude
Low End High End 100k 10k 1k 100 10 1 .1 .01
X10 5.000 100,000 1 2 3 4 4.5
X1 .5000 10,000 1 2 3 4 4.5
÷10 .0500 1,000 1 2 3 4 4.5
÷100 .0050 100 1 2 3 4 4.5
Response rate 25 readings per second
Max web speed 1000 m/min
Reading drift with temperature Less than .25 % of max resolution per degree C
Gap size 3 mm
Minimum sample size 2.5 cm diameter circle
Spatial resolution 2 cm diameter circle
Maximum sample thickness 1.5 mm
Reach in web 20 cm
Maximum web width (while reading entire sample) 40 cm
Display response time Programmable
  • Anti-static/conductive films
  • Antennas
  • Auto
  • Batteries
  • Decorative films/paper
  • Displays
  • Flex circuitry and flexible circuit boards
  • Galvanic coatings
  • Glass windows
  • Metalized capacitor foil
  • Metalized labels
  • Microwave susceptors
  • Packaging
  • Radar absorbent materials
  • Reflectors and reflective materials
  • Semiconductors
  • Solar
  • Transparent conducting film

Options and upgrades

All options and upgrades are available for purchase with the original unit and for at least one year after purchase.

  • Vacuum ready package:

    The sensor is vacuum ready; however, for vacuum applications optional vacuum-ready cabling, brackets, and feedthrough(s) will be required.

  • Optional computer:

    Delcom can source a laptop, desktop, tablet, or industrial touchpanel PC for customers, if needed.