Unitrope Sensors.

　　FIGURE 1. Carbon+Unitrode-1 "Coated, Reusable Sensor. Image Credit: Lambient Technologies

　　Cure. Degree of Polymerization BeFore Gection Affects ρ AFFECTING ION MOBILITY and MeChanical Viscosity.

　　Frequency Independent Residentivity "and is defined as follows:

　　(EQ. 1)

IV = ρFi

(OHM-CM)

　　), and the time left undil a chosen end of cure.

　　For the Sake of Simplicity, LOG (ION VISCOSITY) Will Be Referred to As Log (IV), and Log (ION VISCOSITY) Slope Will Be Referred to As Slope.

　　The measurement.

　　its carbon+ coating.

　　FIGURE 2. Carbon+Unitrode-1 "Coated Dielectric Sensor in Press Placen. Image Credit: Lambient Technologies

　　A lay-up using the carbon+unitropE Sensor is Shown in Figure 3. The Electrode is PerManently Bonded to a Non-Porous Insulating layer, Preventing It from Touching Conductive Fibers.

　　

　　FIGURE 3. Typical Lay-Up with a Carbon+Unitrope Sensor. Image Credit: Lambient Technology

　　Figure 4. Cross section of lay-up with coated sensor, showing electric filed (red). Image Credit: Lambient Technology

　　

　　DIELECTRIC Measurements with a Carbon Fiber Composite Placement Directly on the Electrode Combine the Contributions of:

　　The time-varying conDuctance of the resin as it cures

The blocking layer capacitance

The UNKNOWN and Time-Varying Conductance Between The Carbon Fibers and the Resin

The FIXED Conductance of the Carbon Fibers

The Sensor for the Initial Stage. The Second Stage & RSQUO; S Dielectric Response Occurs at 190 ° C and Is Consisteent with the Typical of the thermosets.

　　And Ion Viscosity Begin to Rise.

　　FIGURE 5. Cure of CFRP in Direct Contory with Carbon+Unitrode-1 "Sensor. Image Credit: Lambient Technologies

　　

　　The end of the cure has ben determine.

　　State. Porous Paper, Fiberglass Felt, or Other Appropriat Materials Can be used as files.

　　FIGURE 6. Typical Lay-Up with Filter on An University. Image Credit: Lambient Technology

　　Electric Field from the Electrodes.

　　AS A Result, Dielectric Measurements USING A FILTER Primarily Identify the Rescription and Correctly Describe the Material & RSquo.

　　Figure 7. Cross section of lay-up with filed unantrode arsor, showing electric filed (red). Image Credit: Lambient TechNologies

　　The slope and ION VISCOSITY of CFRP, As Measud by the Filter and Coated University, are comped in Figure 8.

　　Figure 8. Comparison of CFRP Data from Filtered and Coated University Sensors. Image Credit: Lambient Technologies

　　

　　

　　1992

, December 2000

　　This information has been sourced, reviewed and adapted from materials provided by lambient technologies.