Abstract: A vibrating conveyor 1 for conveying coins using vibration, comprising: a conveyor plate 11 to be loaded with coins to convey the coins loaded thereon by relatively moving the coins; vibration generator means 20 for vibrating the conveyor plate 11; or the vibrating conveyor 1 further comprising a coin storage section 13 disposed around the conveyor plate 11 for storing the coins to be conveyed in conjunction with the conveyor plate 11, wherein the boundary between the conveyor plate 11 and the coin storage section 13 is formed in a wave shape of a specified period. The vibrating conveyor can handle a large amount of coins with a simple design.

Abstract: In a metal body discriminating apparatus of a simple structure and a high detecting accuracy for discriminating a material, a shape, a size, or the like of a metal body by the magnetical principle, an oscillator which performs the oscillating operation by the resonant operation together with the coil wound like a ring is provided to thereby generate magnetic lines of force in the coil. Changes in frequency and amplitude of an oscillation signal in response to changes in impedance and inductance of the coil by the operation of the eddy current which is generated in the metal body by the magnetic lines of force by relatively moving the metal body into the hollow space of the coil are detected as feature parameters of the metal body. Two or more coils constructing a similar oscillator are arranged at regular intervals and a size of metal body is discriminated from each of the oscillation signals having a phase difference which are obtained when the metal body passes in the coils with a time deviation.

Abstract: In a metal body discriminating apparatus for discriminating the material, shape, size, or the like of a metal body, an oscillator performs a self-oscillating operation together with a coil wound like a ring provided to generate magnetic lines of force. Changes in frequency and amplitude of an oscillation signal in response to changes in impedance and inductance of the coil caused by an eddy current, which is generated in the metal body when the metal body moves through the coil, are detected as indicators of features of the metal body. Two or more of such coils may be arranged at regular intervals and the size of metal body will be discriminated based on signals having a phase difference which are obvious when the metal body passes sequentially through the coils.

Abstract: Loading apparatus for testing a power supply comprises an electronic load circuit, the electronic load circuit comprising an organically and systematically connected mode switching circuit capable switching from and to one another a constant resistance mode, a constant current mode and a slave mode. A load switching circuit is connected to the mode switching circuit and an error amplifier is adapted to input a voltage signal in each of the modes. A field effect transistor circuit is adapted to receive the output of the error amplifier as a gate control signal and has a drain terminal to which is fed the output from a power unit under test and further has a source terminal, the output of which is fed back as a comparison voltage signal to the error amplifier. A current measurement display circuit is branched to the source terminal of the field effect transistor circuit, and an overpower protection warning circuit is also branched to the source terminal.

Abstract: Inrush current measuring apparatus with an instantaneous power interruption device is provided an external power input terminal connected to a commercial power supply and an external power output terminal connected to a power unit under test, which terminals are connected together via a switching circuit section; and is equipped with a power interruption device in which the power supply from the external power input terminal to the external power output terminal is cut off or conducted by opening or closing the switching circuit section.