Abstract:
A direct reading meter for indicating the phase relationship of two input electrical signals having the same frequency. The meter employs a DC voltmeter with two scales over its range. The meter also is provided with an indicator, such as two different lamps, for indicating which one of the two scales is concurrently applicable to the meter indication. A threshold limiter may be provided to deactivate the meter unless the amplitude of one of the input signals exceeds a preestablished minimum value.
Abstract:
A method and apparatus for determining the amount and location of corrective weight required to compensate unbalance in a vehicle wheel and tire without removing the wheel and/or tire from the vehicle. The wheel and tire are maintained out of contact with the ground and are turned at conventional highway speeds. An index tape is applied to the tire rim. Two separate spinnings of the wheel are required: one with a known trial weight affixed to the wheel rim, and one with the wheel and tire in their normal condition. Two meters are provided which are calibrated to indicate the amount of unbalance compensating weight required at the wheel rim and the angular position of the compensating weight relative to the index tape. The method and apparatus are applicable to other rotatable bodies.
Abstract:
System and apparatus for monitoring vibrational and other detected aspects of a machine. Transducer outputs are scanned through the use of a microprocessor, the memory components of which retain pre-determined set point information. The channel representing a given transducer output is displayed visually on the apparatus for 5 second intervals in combination with a linear form of disply showing monitored transducer values as well as set point values. In the event of detected threshhold level warnings or the like, additional visual indicators representing both system and channel status conditions are energized. The system includes a small, hand-held programmer by which any of a broad variety of functions may be readily entered into the memory of the processor through the simple manipulation of a single potentiometer. During the programming procedure, the values being inserted are displayed on the noted bar chart. Preferably, the chart is present as a linear array of 50 LEDs.
Abstract:
Electronic balancing apparatus for rotating bodies in which unbalance read-out for two-plane dynamic balancing can be obtained on an initial run without the need for trial weights or calibration runs, and wherein manual filter tuning, manual ranging of amount displays and manual entry of right and left calibration weights are eliminated. In addition, the system will automatically divide correction weights between two points on a rotor, will combine multiple corrections into one weight, and incorporates memory meters which hold their readings from run-to-run without adjustment.