Ideal for dielectric properties and cure state of epoxies, bulk molding compound (BMC), sheet molding compound (SMC), silicones, thermosets, urethanes, RIM and composite materials. The Varicon sensor is designed for use in presses, molds, bulk materials or laminates where a thin, flexible dielectric sensor is necessary. Patterned on a polyimide substrate, the electrode array is designed to allow a choice of three sensitivities.
The Varicon sensor is designed for use in presses, molds, bulk materials or laminates where a thin, flexible dielectric sensor is necessary. Patterned on a polyimide substrate, the electrode array is designed to allow a choice of three sensitivities, which are selected by cutting off portions of the array at designated lines.
The Varicon sensor is thin enough to be implanted within a sample or between the plies of a laminate and may be discarded after use. Patterned on a polyimide substrate, the electrode array is designed to allow a choice of three sensitivities, which are selected by cutting off portions of the array at designated lines.
The Varicon sensor is 15” (38 cm) long and only 0.004” (100 um) thick. The gold-plated electrodes have 0.004” (100 um) widths and spaces, and measures dielectric/conductive properties within approximately 0.004” (100 um) of the electrode surface.
The Varicon sensor is suitable for high pressure, high temperature applications, and is ideal for measuring the dielectric properties and cure state of epoxies, bulk molding compound (BMC), sheet molding compound (SMC), silicones, thermosets, urethanes, RIM and composite materials.
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Configuration M: Maximum sensitivity for Low to Mid-Conductivity materials.
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Configuration A: Intermediate sensitivity for Low to Mid-Conductivity materials.
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Configuration B: Minimum sensitivity for High Conductivity materials.
The Varicon sensor is 15 inch (38 cm) long and only 0.004 inch (100 um) thick. The gold-plated electrodes have 0.004 inch (100 um) widths and spaces.
The Varicon sensor is suitable for high pressure, high temperature applications, and is ideal for measuring the dielectric properties and cure state of epoxies, bulk molding compound (BMC), sheet molding compound (SMC), silicones, thermosets, urethanes, RIM and composite materials.
Temperature, maximum : 375 °C (700 °F)
Frequency, mid-con mode : 0.1 Hz ~ 100 KHz
Frequency, high-con mode : 0.001 Hz ~ 100 KHz
Dimensions:
- Length, overall : 15 inch (38 cm)
- Width, sensor head : 0.75 inch (1.9 cm)
- Thickness : 0.004 inch (100 um)
- Width, electrode : 0.004 inch (100 um)
- Spacing, electrode : 0.004 inch (100 mm)
Composition:
- Substrate : Polyimide
- Electrodes : Copper with gold flash
Operational Temperature, maximum : 375 °C (700 °F)
- Frequency, mid-con mode : 0.1 Hz - 100 KHz
- Frequency, high-con mode : 0.001 Hz - 100 KHz
Sensor Parameters: A/D ratio Base capacitance
- Configuration M : 160 cm ~ 48 pF*
- Configuration A : 80 cm ~25 pF*
- Configuration B : 8 cm ~ 3 pF*
* Actual value may vary
Temperature sensor : None
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Configuration M (A/D ratio = 160 cm)
Mid-con mode
- Log Conductivity : -14.7 to -5.7 Log(siemens/cm)
- Log Ion Viscosity : 5.7 to 14.7 Log(ohm-cm)
- Log Loss Factor : -0.7 to 3.7
- Permittivity : 1 to 102
(Not recommended for accurate measurement of permittivity, although trends are indicative)
High-con mode
- Log Conductivity : -12.7 to -1.7 Log(siemens/cm)
- Log Ion Viscosity : 1.7 to 12.7 Log(ohm-cm)
- Log Loss Factor : 0.7 to 5.7
- Permittivity : Not applicable
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Configuration A (A/D ratio = 80)
Mid-con mode
- Log Conductivity : -13 to -4 Log(siemens/cm)
- Log Ion Viscosity : 4 to 13 Log(ohm-cm)
- Log Loss Factor : -1 to 4
- Permittivity : 1 to 102
(Not recommended for accurate measurement of permittivity, although trends are indicative)
High-con mode
- Log Conductivity : -11 to -2 Log(siemens/cm)
- Log Ion Viscosity : 2 to 11 Log(ohm-cm)
- Log Loss Factor : 1 to 6
- Permittivity : Not applicable
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Configuration B (A/D ratio = 8 cm)
Mid-con mode
- Log Conductivity : -12 to -3 Log(siemens/cm)
- Log Ion Viscosity : 3 to 12 Log(ohm-cm)
- Log Loss Factor : 0 to 5
- Permittivity : 1 to 102
(Not recommended for accurate measurement of permittivity, although trends are indicative)
High-con mode
- Log Conductivity : -12 to -3 Log(siemens/cm)
- Log Ion Viscosity : 3 to 12 Log(ohm-cm)
- Log Loss Factor : 0 to 5
- Permittivity : Not applicable
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