摘要:
apparatus for ascertaining and/or monitoring volume- or mass-flow of a medium flowing through a pipeline in the direction of the longitudinal axis of the pipeline. The apparatus includes at least one ultrasonic sensor containing at least one sound-producing element and an interfacing shoe and emitting, respectively receiving, ultrasonic measurement signals at an incidence/emergence angle into, respectively out of, the pipeline A first adjusting mechanism is provided, which is so embodied, that the incidence/emergence angle of the ultrasonic sensor is adjustable in predetermined limits. The apparatus further includes a control/evaluation unit, which ascertains the volume- or mass-flow of the medium in the pipeline on the basis of the travel-time difference method, the cross-correlation method or the Doppler method.
摘要:
A method is disclosed in which one or more pieces of user information are obtained. The one or more pieces of user information are indicative of at least one attribute of a user and/or include at least one piece of information associated with the user. In the method, one or more pieces of user probability information are determined based on the one or more pieces of user information. The one or more pieces of user probability information are indicative of a probability that the one or more pieces of user information are linked to the user. One user identity is determined based on the one or more pieces of user probability information. It is further disclosed an according apparatus, computer program and system.
摘要:
A method is disclosed in which information based at least partially on a search query information being associated with a user and/or a group of users is obtained. Personal information associated with the user and/or the group of users is extracted from the obtained information. At least one user profile is created based at least partially on the extracted personal information. One or more pieces of attribute information are determined for enriching the personal information of the created user profile. Further, the determined one or more pieces of attribute information are allocated to the user profile and/or to personal information included in the user profile. It is further disclosed an according apparatus, computer program and system.
摘要:
A method for manufacturing an ultrasonic, flow measuring device, characterized by method steps as follows: selecting a number larger than one of straight subsections of the first signal path, which should have different distances from the measuring tube axis; establishing the distances of the straight subsections from measuring tube axis; calculating values of lengths of the straight subsections, as projected on the measuring tube axis, as a function of the number of straight subsections with the same distance from the measuring tube axis and the respective distances from the measuring tube axis; and inserting the at least a first reflection surface in the measuring tube such that the acoustic signal on the path from the first transmitter to the first receiver is so reflected on at least the first reflection surface that the first signal path comprises the straight subsections with the selected distances and the calculated values of the lengths as projected on the measuring tube axis.
摘要:
An ultrasonic, flow measuring device, including a measuring tube a transmitter a receiver and at least a first reflection surface. An acoustic signal incident on a first reflection surface and an acoustic signal reflected on the first reflection surface travel, in each case, along a straight subsection of the first signal path. The transmitter, the receiver and the first reflection surface are so oriented with respect to one another and arranged in or on the measuring tube that the acoustic signal on the first signal path from the first transmitter to the first receiver is so reflected on the first reflection surface that the sum of all lengths of all subsections as projected on a measuring tube axis, extending in a first plane parallel to the measuring tube axis, and having a predetermined separation other than zero from the measuring tube axis has a predetermined value different from zero.
摘要:
A method for the manufacture of a measuring device, and a measuring device for registering at least one measured value of at least one process variable, wherein the measuring device includes a measuring tube, which has at least one necked out portion, on which at least one measuring transducer is arranged, wherein the measuring tube together with the necked out portion is monolithic, and wherein the necked out portion is manufacturable from the measuring tube at least partially by a deformation method.
摘要:
A measuring system for determining and/or monitoring flow of a measured medium through a measuring tube, wherein the measuring system includes: at least one control/evaluation unit, which, based on ultrasonic measurement signals, or based on measurement data derived from the ultrasonic measurement signals, ascertains volume, and/or mass, flow of the measured medium flowing in the measuring tube; and a sensor housing, which surrounds a first ultrasonic sensor and at least a second ultrasonic sensor. At least the first ultrasonic sensor is seated shiftably in the sensor housing; wherein the measuring system further includes a sensor holder, which is securable on the measuring tube and includes a securement mechanism for the releasable securement of the sensor housing on the sensor holder. The sensor housing forms with the ultrasonic sensors a unit securable on the sensor holder and releasable from the sensor holder.
摘要:
An ultrasonic, flow measuring device, including a measuring tube a transmitter a receiver and at least a first reflection surface. An acoustic signal incident on a first reflection surface and an acoustic signal reflected on the first reflection surface travel, in each case, along a straight subsection of the first signal path. The transmitter, the receiver and the first reflection surface are so oriented with respect to one another and arranged in or on the measuring tube that the acoustic signal on the first signal path from the first transmitter to the first receiver is so reflected on the first reflection surface that the sum of all lengths of all subsections as projected on a measuring tube axis, extending in a first plane parallel to the measuring tube axis, and having a predetermined separation other than zero from the measuring tube axis has a predetermined value different from zero.
摘要:
The present invention relates to processes for the preparation of 5-methyl-3-nitromethyl-hexanoic acid ester and its salts. Also disclosed are processes for the preparation of 5-methyl-3-nitromethyl-hexanoic acid salt and a process for the preparation of 3-(aminomethyl)-5-methylhexanoic acid. (S)-5-Methyl-3-nitromethyl-hexanoic acid or (R)-5-methyl-3-nitromethyl-hexanoic acid in enantioenriched form or enantiopure form as well as salts thereof, (S)-5-methyl-3-nitromethyl-hexanoic acid ester or (R)-5-methyl-3-nitromethyl-hexanoic acid ester in enantioenriched form or enantiopure form and a compound, namely Formula (XIII), in racemic form, enantioenriched form or enantiopure form are also disclosed.
摘要:
An ultrasonic transducer for determining and/or monitoring flow of a measured medium through a measuring tube, which includes at least one piezoelectric element, at least one coupling element and at least one adapting, or matching, layer between the piezoelectric element and coupling element. The adapting, or matching, layer has a thickness smaller than a fourth of an uneven integer multiple of a wavelength of an ultrasonic signal being used.