Single-Sensor Film Probes

Film probes with non-cylindrical sensors have the nickel film deposited on quartz substrates of different aerodynamic shapes: wedges, cones, flat plates or spheres. The sensor is defined as a line or a ring. Two sputtered silver leads carry the current from the cable, normally attached to the probe body, forward to the sensor. The sensor is protected by a quartz coating (0.5 µm in gases and 2 µm in liquids), while the leads are insulated by means of a lacquer coating.

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