Proceptor® Sensor

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The heart of the Proceptor system is the in-line sensor, which is a ceramic cylinder with metal electrodes plated onto its inside surface. A 45 mm inside diameter sensor is shown in the photograph and a 12 mm ID sensor is shown in the other photograph. Sensors are available in sizes from 12mm to 300 mm ID.

Process liquids flow through the hole in the sensor, contacting the electrodes. Fringing electric fields extend from the electrodes into the process material. The sensor is clamped between gaskets in a steel housing assembly.

The system instrumentation applies alternating voltages to the electrodes of the Proceptor® in-line sensor, generating electric fields which cause currents to flow in the process material. At any given frequency, the current which is in phase with the applied voltage is proportional to the conductivity of the process material, and the current which is out of phase with the applied voltage is proportional to the permittivity of the process material. The system measures these currents, taking into account currents which also flow in the ceramic body of the Proceptor in-line sensor, and calculates the associated electrical properties of the process material.