摘要:
Die Erfindung betrifft ein phasenschiebendes Element (1) zum Schieben einer Phase zumindest eines Teils eines Teilchenstrahls sowie ein Teilchenstrahlgerät mit einem derartigen phasenschiebenden Element (1). Der Erfindung liegt die Aufgabe zugrunde, ein phasenschiebendes Element und ein Teilchenstrahlgerät mit einem phasenschiebenden Element anzugeben, bei denen einen Teilchenstrahl abschattende Bauelemente vermieden werden, so daß ein guter Informationsgehalt erzielt wird, und bei denen der Phasenkontrast im wesentlichen raumfrequenzunabhängig ist. Diese Aufgabe wird dadurch gelöst, daß das phasenschiebende Element (1) mindestens ein Mittel (2) zur Erzeugung eines inhomogenen bzw. anisotropen Potentials aufweist. Das erfindungsgemäße Teilchenstrahlgerät ist mit dem phasenschiebenden Element (1) versehen.
摘要:
The invention relates to a method and to a device (1) for producing an image of an object (5) by means of a particle beam. According to the method and in the device (1), the particle beam is scanned by the object (5). The aim of the invention is to provide a method and a device for producing an image of an object (5) by means of a particle beam that can be used with a cold field emitter (2) in such a manner that a good image quality is constantly ensured. Said aim is achieved by virtue of the fact that, according to the invention, when a radiation parameter is altered, the object (5) is rescanned preferably with the corrected parameter. The inventive device (1) comprises the corresponding means (4, 6, 7) therefor.
摘要:
The invention refers to a method and a device for controlling and monitoring a position of a holding element which is provided to hold a sample to be examined, in particular by a beam device such as an electron microscope. It is an object of the invention to provide a method and a device for controlling and monitoring a position of a holding element taking any errors with respect to irregularities into account. The invention is based on the idea of interpolation of possible errors.
摘要:
A diaphragm metering pump suitable for metering an effervescent gas. The pump has a pump head with a product chamber having an inlet end with a one-way inlet valve and an outlet end with a one-way outlet valve. A displaceable diaphragm member defines a boundary of the product chamber. The diaphragm member is capable of being reciprocated to cause pumping displacements. A discharge side is disposed downstream from the outlet valve. A passageway is disposed in fluid communication between the discharge side and the product chamber. A valve is disposed in the passageway. The valve is opened intermittently to allow liquid to re-enter the product chamber in an amount effective to purge gas from the product chamber to prevent loss of prime.
摘要:
The present invention discloses vegetable oil based compositions having an effective combination of properties including lubricity, rheology, electrical insulating value and microbial biodegradability making them particularly useful for the proper functioning of mechanical devices.
摘要:
A utility lighter comprises a housing (12), a nozzle (14) having a nozzle tip, a lighter fluid reservoir (20), a conduit (23), an igniter assembly (24), a valve actuator (27), and a locking device (60). The conduit delivers the lighter fluid from the reservoir to the nozzle. The igniter assembly generates a spark near the nozzle tip to ignite the lighter fluid, and has a piezoelectric component. The valve actuator is associated with the lighter fluid for selectively releasing the lighter fluid from the reservoir, and the igniter assembly. A compressor (26) is connected to the valve actuator for compressing the piezoelectric component. The locking device diminishes the undesirable movement of the valve actuator.
摘要:
A wire capable of operating at high temperatures and a method of making the same is disclosed. The high temperature wire comprises fiberglass, which surrounds the conductor. The fiberglass insulates the conductor and enables it to operative at relatively high temperatures. The fiberglass is heat-treated without any additional, or in lieu of, other chemical treatment and is sufficiently frangible to be easily removable from the conductor. The frangible fiberglass may be easily stripped away from the conductor without leaving strands which need to be individually removed
摘要:
A riding lawn mower having zero turn capabilities has the engine (24) mounted on the front (14) of the frame (12). A drive system includes first and second hydrostatic transmissions for use in driving the back wheels. A grass bag (42) may be mounted to the back portion of the frame and provides a counter balance to maximize the weight distribution. A discharge chute (40) transfers cut vegetation from a mower deck (26) to the grass bag and provides rear center discharge.
摘要:
The application relates to a method for analyzing, in particular for imaging, and/or processing of an object as well as a particle beam device (200) for carrying out this method. The method in particular comprises a control unit (103 providing a first control parameter, wherein a beam guiding unit (202, 203, 204, 208, 209) is controlled using the first control parameter for guiding the particle beam (217) and/or wherein a moving unit is controlled using the first control parameter for moving an object holder (210), correlating a position of the object holder (210) in a second coordinate system to the object position on the surface of the object, identifying a first coordinate transformation between the first coordinate system and the second coordinate system, identifying an orientation position of a distinctive feature on the surface of the object and identifying first coordinates of the orientation position in the first coordinate system, the control unit (103) providing a second control parameter, wherein the second control parameter is used for at least one of: controlling the beam guiding unit (202, 203, 204, 208, 209) for guiding the particle beam (217), controlling the moving unit for moving the object holder (210) or controlling a detector (212, 213), identifying again the orientation position of the distinctive feature and identifying second coordinates of the orientation position in the first coordinate system, comparing the first coordinates with the second coordinates, identifying a local displacement of the first coordinates to the second coordinates, identifying a second coordinate transformation using the first coordinate transformation and the local displacement and identifying a position of an area to be analyzed and/or processed on the surface of the object. The method further comprises operating the particle beam device (200) using a first detector (212) or a second detector (213).