Abstract: A solution for monitoring a property of an object and/or an area using a Micro-ElectroMechanical Systems (MEMS)-based monitoring device is provided. In an embodiment of the invention, the MEMS-based monitoring device includes a MEMS-based sensing device for obtaining data based on a property of the object and/or area and a power generation device that generates power from an ambient condition of the monitoring device. In this manner, the monitoring device can operate independent of any outside power sources or other devices. Further, the monitoring device can include a transmitter that transmits a signal based on the property. The monitoring device can be used to monitor a moving component of a machine, and can be integrated with a health monitoring system of the machine using one or more relay devices.

Abstract: All critical wheel wear measurements on a static or in-motion train wheel are taken using a non-contact method/system. The train wheel is measured using a modulated point beam of energy impinging the wheel surface from an orthogonal direction, moving the point beam across the wheel surface, and sensing the unique modulated reflection of the wheel using energy sensors that produce analog signals. The analog signals are digitized and processed to produce all critical wheel wear measurements without removing the wheel from the train.

Abstract: An apparatus for monitoring the concentration of dissolved gas in a liquid line comprises a heating element for causing the liquid in the line to boil at a localized point, a thermistor for measuring the temperature at the localized point at the instant of boiling, a pressure transducer for measuring the pressure of the line, and a programmable microprocessor for processing the temperature and pressure data provided by said temperature and pressure measuring means to determine the concentration of the dissolved gas in the liquid line.

Abstract: An apparatus for determining the amount of particle suspension in a fluid by measuring radiation reflection on the particles, comprises a beam of radiation directed into the fluid; first and second photovoltaic detectors for picking up at least a portion of the beam of radiation reflected from the particle suspension in the fluid; and a circuit for comparing the output of the first detector relative to the output of the second detector to obtain the amount of particle suspension in the fluid. The detectors are positioned such that the output of the first detector increases relative to the output of the second detector as the amount of particle suspension in the fluid increases.

Abstract: An electro-optical meter for indicating consistency of a liquid slurry, employs a light source and a detector of backscattered radiation. The light is caused to scan the slurry while holding the light intensity and the peak-to-peak value of the detected signal constant. The distribution of backscattered light is measured and the minimum to maximum intensity of backscattered light is controlled.

Abstract: A non-contact measuring apparatus for determining errors in concentricity between an elongated electrically conductive core such as a wire and an insulation coating thereon is disclosed. An optical scanning section produces an electrical signal proportional to the position of the coating at the same time that a capacitance section produces an electrical signal proportional to the position of the core. A comparator compares the two signals to yield a difference or error signal proportional to the error of concentricity and the result is continuously displayed to show the axis and magnitude of the error.

Abstract: A non-contact gage for continuously measuring the diameter of a moving member such as a wire or rod employs a source of radiant energy, a scanner and a radiant energy detector aligned across the path of travel of the member whose diameter is to be measured. Operation of the scanner causes a composite signal to be generated in the detector and a component of that signal is proportional to the diameter of the member. The diameter proportional component is separated electronically and fed to a read out device. Inherent non-linearities or inaccuracies such as may be caused mechanically by the scanner mechanism are electronically minimized or eliminated in the detection and display circuitry.

Abstract: A portable dielectric Radio Frequency generator adapted with wheels and a flexible output cable through which a suitable range of Radio Frequency currents pass. A levelable press applies Radio Frequency voltage to a plastic load and is adapted with a set of various shaped quick mounting electrodes and control circuitry. When the generator is moved to a work site, the press is stored in a holding device facilitating ease of transportation. The press provides suitable compressive forces on the electrode system selected by utilizing a spring compressed by a hand operated cam.