摘要:
A light source, preferably an electrical flash tube, generates a beam of light which, preferably, is collimated to provide a parallel beam output. The workpieces are placed in the beam of light to generate a shadow image. The shadow image and surrounding beam portions are projected on a screen, with intervening optical enlargement, on which photoelectric sensors are located positioned in the projected shadow image and preferably also in adjacent regions of the light beam, the outputs from the sensors being compared with each other, or with a reference, to determine relative shadow image characteristics of regions of the objects in the light beam path, the output signals being a measure of differences in characteristics, and hence determinative of orientation, size, or integrity of the workpiece material. To test for size or orientation, two sensors are located at the end portions of the shadow images of pins, or bolts, carried through a test path interposed between the parallel beams from the light source, before enlargement.
摘要:
The invention relates to a rotary seal, a vessel and also to use of the vessel. According to the invention, the rotary seal contains a sealing element and a retaining means, the sealing element being configured as a planar structure with an opening which can be changed in its opening cross-section and the retaining means having a first retaining part and a second retaining part (5) which can be rotated relative to each other, and first retaining part and second retaining part respectively being connected securely to the sealing element at least at one attachment point , the attachment points being chosen such that the sealing element can be deformed by rotation of the first and second retaining part such that the opening of the sealing element is reduced in its opening cross-section.
摘要:
A sealant comprising a mercapto-terminal liquid oligomer containing plasticizers, fillers and additives wherein the improvement comprises as curing agent an acrylic or methacrylic compound with at least two acrylic or methacrylic groups per molecule and a guanidine derivative as a curing catalyst having good chemical and weathering stability, low water vapor permeability and long-term elasticity properties.
摘要:
A display screen in a panel in a vehicle interior, in particular a dashboard or central console, is mounted so it is pivotable in the panel and can be switched over from a display mode into an illumination mode.
摘要:
The present invention relates to a measuring chamber (6) for an ultrasonic bath (1) or for a container which is equipped with a low-frequency ultrasonic source (2) for cavitation generation, this measuring chamber being suitable for determining the cavitation energy via the increase in volume in a measuring liquid (10) contained in the measuring chamber, and the measuring chamber having in addition a container (7) with a sound-permeable window region (8) and a sensor (9) for measuring the increase in volume of the measuring liquid (10).In addition, a method for operating this measuring chamber is presented.With the measuring chamber according to the invention or the corresponding method (independent of a prescribed ultrasonic bath), reliable determination of the introduced ultrasonic power or a conclusion about the cleaning power is possible.
摘要:
A display screen in a panel in a vehicle interior, in particular a dashboard or central console, is mounted so it is pivotable in the panel and can be switched over from a display mode into an illumination mode.
摘要:
An ultrasonic sonotrode for irradiating ultrasonic energy into fluid or pasty media, wherein the ultrasonic sonotrode in the longitudinal direction (z) includes: a coupling section for coupling an active ultrasonic system which excites longitudinally in the longitudinal direction (z); a base section, wherein the largest dimension of the base section transverse to the longitudinal direction (z) is larger than the length of the base section in the longitudinal direction (z), wherein the dimensions of the base section transverse to the longitudinal direction in the border region to the transition section are always ≧λ/4 and the shortest length of the base section in the longitudinal direction (z)
摘要:
Biological material is suspended in a liquid and, in the presence of reverberative bodies suspended in the suspension of biological material, subjected to ultrasound thereby to disintegrate the biological material. The disintegration is conducted in a spherical chamber at approximately the center of which is the radiating surface of a sonotrode. The diameter of the chamber is at least three times the diameter of the radiating surface and the radiating surface faces the bottom of the chamber. The suspension of the biological material is pumped upwards through the chamber.
摘要:
Device for storing small articles and conveying them in an orientated manner, includes a storage container (10), a slope conveyor (12), and an orientation conveyor (20) which is arranged parallel to the slope conveyor and is provided with a defined segment (68) for returning excessive small articles or those which are not orientated to the feed area (32) of the slope conveyor (12). The slope conveyor is provided with the actual conveying segment (50), a deflecting segment (52) for receiving small articles which are forced out of the conveying segment (50) laterally, the small articles arriving back in the feed area (32) of the slope conveyor (12) on the deflecting segment (52). A pile-up of small articles arrives in the output area (40) of the slope conveyor (12) and a localized circulation is formed in this location which prevents the small articles from entering the orientation segment (64).
摘要:
The present invention relates to a measuring chamber (6) for an ultrasonic bath (1) or for a container which is equipped with a low-frequency ultrasonic source (2) for cavitation generation, this measuring chamber being suitable for determining the cavitation energy via the increase in volume in a measuring liquid (10) contained in the measuring chamber, and the measuring chamber having in addition a container (7) with a sound-permeable window region (8) and a sensor (9) for measuring the increase in volume of the measuring liquid (10).In addition, a method for operating this measuring chamber is presented.With the measuring chamber according to the invention or the corresponding method (independent of a prescribed ultrasonic bath), reliable determination of the introduced ultrasonic power or a conclusion about the cleaning power is possible.