Abstract: A system and method for calibrating a digital conductivity and temperature measuring system. A connector is interposed between a sensor and transmitter of the digital conductivity and temperature measuring system. A calibrator, which may have selectable resistors with known values, is also attached to the connector. The sensor measures a raw resistance for a selected resistor. The digital conductivity and temperature measuring system then compares the raw resistance to the known value of the resistor to calculate a calibration factor.

Abstract: A system and method for calibrating a digital conductivity and temperature measuring system. A connector is interposed between a sensor and transmitter of the digital conductivity and temperature measuring system. A calibrator, which may have selectable resistors with known values, is also attached to the connector. The sensor measures a raw resistance for a selected resistor. The digital conductivity and temperature measuring system then compares the raw resistance to the known value of the resistor to calculate a calibration factor.

Abstract: An actuator and programmable amplifier is operative for use with an expanding plug gage head operated by an axially movable plunger having a tapered operating end and an opposite cross head end. The cross head end of the plunger is releasably received and secured through a slot in a retracting lever which is pivotably mounted in the actuator/amplifier housing. A compression spring normally urges the plunger to a fully extended position within the gage head. The retracting lever is actuatable for withdrawing the plunger from the gage head. The actuator/amplifier device includes a transducer having a core which is coupled to the crosshead end of the plunger. The transducer is operative for measuring an axial position of the plunger within the gage head. The programmable amplifier includes a memory for storing a plurality of sets of configuration data for a plurality of different gage heads.

Abstract: A body for improved shedding of vortices within a flowing fluid has a very short downstream length, e.g. 1/8 inch, yet is capable of excellent flow metering performance. The body includes an upstream elongate thin plate spanning the inner diameter of a conduit, and one or more sections projecting downstream of the plate. Generally, these sections are in the form of cylindrical rods having circular, rectangular, or oval cross-sections, with their longitudinal axes parallel to the longitudinal axis of the plate. Although these sections may be separated from the plate, in certain embodiments they are rigidly attached to the downstream side thereof. By simultaneously maintaining the ratio of the width (i.e., transverse to the flow direction) of the thin plate to the overall width of the downstream sections within the range from 1.0 to 2.2, and the ratio of the width of the thin plate to the diameter of the conduit within the range from 0.1 to 0.

Abstract: An electronic musical instrument is provided to produce audible tones by the use of at least a pair of electron beam guns having deflecting means, the output of the guns energizing luminous screens with masks in front of the screens of the tubes upon which is graphically depicted an image that represents one or more timbres or mixing control voltages. Electronic means are provided for energizing the cathode ray tubes so that they will scan the masks and light sensitive devices are focused on the images produced by the masks and a variety of means are used to mix the outputs.