Abstract: A chiropractic adjusting instrument comprising a housing; thrust nose piece an impact head to contact a body, a preload switch plunger; a dampening spring; a solenoid having a core; a preload spring; a recoil spring; an electronic pulse system operatively connected to a power source to provide alternating current for energizing the solenoid to impart impulse energy from the core to the thrust nose piece which is reproducible and independent of the power source; and a trigger system for triggering the electronic pulse system comprising a switch activated by the preload switch plunger. Preferably, the chiropractic adjusting instrument includes one or more of the following: an intelligent universal AC power converter; optimized force-time waveform; pulse mode operation; a sensing device having a sense output and a suite of electromechanical components designed to promote reproducible dynamic force impulses and safe operation.

Abstract: A portable power operated chiropractic adjustor, manipulator or thruster for applying an adjustment energy to a patient through a plunger having a resilient or cushioned head with the energy applied to the plunger being supplied by non-manual sources and the impulse is adjustable or tunable along with having annunciators or indicators for preload and readiness to operate. The adjustor also allows for settings of single or multiple strokes. The power source may be internal such as from a rechargeable battery, removable rechargeable battery pack, or air cartridge depending on whether it is electrically or pneumatically operated.

Abstract: A chiropractic adjusting instrument comprising a housing; a thrust nose piece and an impact head to contact a body; a preload switch plunger; a dampening spring; a solenoid having a core; a preload spring; a recoil spring; an electronic pulse system operatively connected to a power source to provide alternating current for energizing the solenoid to impart impulse energy from the core to the thrust nose piece which is reproducible and independent of the power source; and a trigger system for triggering the electronic pulse system comprising an switch activated by the preload switch plunger. Preferably, the chiropractic adjusting instrument includes one or more of the following: an intelligent universal AC power converter; optimized force-time waveform; pulse mode operation; and a suite of electromechanical components designed to promote reproducible dynamic force impulses and safe operation.

Abstract: A device for the safe discharge of a superconducting magnet coil (4) which is located inside a cryostat (2) and superconductively short-circuited by a superconducting switch (7) providing at or in the cryostat (2) a transmitter (10) of electromagnetic energy being located at a temperature level considerably above the cryogenic temperature of the superconducting magnet coil (4), which transmitter can be switched on quickly from outside, and by arranging in the region of the superconducting switch (7) at the cryogenic temperature level of the superconducting magnet coil (4) a receiver (20) for the emitted electromagnetic energy, which transmits the received energy directly or indirectly to a heating device (15) of the superconducting switch (7) or which activates an auxiliary energy source (41) in the region of the superconducting switch (7) , which on its turn effects a heating of the superconducting switch (7), so that it becomes normal-conducting and causes a discharge process of the superconducting magnet c

Abstract: A device for the safe discharge of a superconducting magnet coil (4) which is located inside a cryostat (2) and superconductively short-circuited by a superconducting switch (7) providing at or in the cryostat (2) a transmitter (10) of electromagnetic energy being located at a temperature level considerably above the cryogenic temperature of the superconducting magnet coil (4), which transmitter can be switched on quickly from outside, and by arranging in the region of the superconducting switch (7) at the cryogenic temperature level of the superconducting magnet coil (4) a receiver (20) for the emitted electromagnetic energy, which transmits the received energy directly or indirectly to a heating device (15) of the superconducting switch (7) or which activates an auxiliary energy source (41) in the region of the superconducting switch (7), which on its turn effects a heating of the superconducting switch (7), so that it becomes normal-conducting and causes a discharge process of the superconducting magnet co

Abstract: A resonator which is arranged on a hollow cylindrical support (1) for the taking of high resolution magnetic nuclear resonance spectra from a sample extending along the cylinder axis within the resonator, and having a shielding (2) which defines the sensitive region of the resonator axially along a certain length which is shorter than the axial extent of the support (1), is characterized in that the resonator is configured as an axially symmetric bird-cage resonator. It only produces static field distortions in its sensitive region which are easily correctable, has an improved fill-factor and reduced ohmic losses, and produces a homogeneous RF field while avoiding topological problems occurring with quadrature detection.

Abstract: In order to compensate external interfering fields inside a superconducting magnet coil, these interfering fields are measured outside of the magnet coil by means of a small induction coil in order to obtain a regulation signal, and, by means of a regulation algorithm, the current through a compensation coil is controlled. The induction coils are effectively decoupled from fluctuations of the stray field of the magnet coil and from vibrations.

Abstract: A multi-experiment magnetic-resonance instrument such as a programmable pulse/Fourier-transform nuclear-magnetic-resonance ("NMR") spectrometer, an electron-paramagnetic-resonance spectrometer, or a magnetic resonance tomographic imaging device, capable of performing any one of a plurality of magnetic-resonance measurement sequences selected by a user and comprising: a magnet for generating a magnetic field; a probe having radio-frequency coupling circuitry positionable in the magnet; a radio-frequency generator/transmitter connected to the coupling circuitry of the probe; a radio-frequency receiver/digitizer connected to the coupling circuitry of the probe; a digitized-signal averager/processor connected to the receiver/digitizer; a programmable instrument controller having measurement-sequence control-program storage; a barcode reader connected to the instrument controller; and at least one measurement-sequence-selection barcode table having a plurality of barcode-encoded measurement-sequence data words arr