Abstract:
Ionising radiation detector with solid radiation conversion strip and manufacturing process for this detector. This detector, that can for example be used in radiography, is formed by placing conversion means comprising the strip (10) and collection means (30) on each side of an excitable medium that interacts with charged particles resulting from the conversion of radiation (3), to generate other particles. The collection means collect these other particles and output signals representative of the radiation.
Abstract:
Provided are an electric switching device with improved reliability and improved speed characteristics and an electric circuit device having the electric switching device. In the electric switching device, a first area is formed on an insulating substrate, and a second area formed on the insulating substrate such as to be a predetermined apart from the first area. The first and second areas contract or expand depending on the intensity of a laser.
Abstract:
A scanning probe microscope includes (a) a first device which causes a relative displacement between an object and a probe, (b) a detector which detects a change in interaction caused by the first device between the probe and the object, (c) a second device which feeds the detected change back to the relative displacement to keep the interaction equal to a constant, (d) an adder which adds the detected change to the constant while the interaction is fed back to a distance between the probe and the object, to thereby temporarily vary the constant, (e) a collector which collects signals relating to a displacement which signals are varied as the constant is varied, and calculates a relation among the signals, and (f) a third device which returns the temporarily varied constant back to the constant for scanning the object, calculates products of the relation with each of the signals in real-time, and sums the products, which products indicate a profile of a surface of the object.
Abstract:
A safety switching apparatus for power-operated equipment, for power-operated machinery and for power-operated windows, doors, sliding equipment and the like, in particular of vehicles, having at least a light source, an optical waveguide (1), a light sensor and an associated control unit that controls the driving of the equipment in dependence on the intensity of light received by the light sensor, the optical waveguide (1) having a light-guiding core (2) with a high refraction coefficient and an outer wall (3) surrounding the light-guiding core (2) and having a lower refraction coefficient than the light guiding core (2), the light-guiding core (2) and/or that outer wall (3) being fabricated from a material that is in a liquid or elastically deformable state in the optical waveguide (1) ready for service.
Abstract:
A method for determining physical properties of micromachined cantilevers used in cantilever-based instruments, including atomic force microscopes, molecular force probe instruments and chemical or biological sensing probes. The properties that may be so determined include optical lever sensitivity, cantilever spring constant and cantilever-sample separation. Cantilevers characterized with the method may be used to determine fluid flow rates. The method is based on measurements of cantilever deflection resulting from drag force as the cantilever is moved through fluid. Unlike other methods for determining such physical properties of cantilevers, the method described does not depend on cantilever contact with a well-defined rigid surface. Consequently, the method may be employed in situations where such contact is undesirable or inconvenient. The method has numerous applications, including molecular force measurements, atomic force microscopy and manipulation technology, chemical or biological sensing, nulllithographic manufacturing, nanometer scale surface profilingnull and other aspects of nanotechnology.