摘要:
The invention relates to a coupling device for connecting a first shaft (10) to a second shaft (12) by means of two flanges (16, 18, 22, 24) that are meshed with one another, wherein the flanges are provided or designed with means (30, 32, 111, 211, 311, 317, 319, 321) of enabling the axial and/or radial relative adjustment thereof due to a misalignment of the shafts to be visually observed. According to one variant, at least one of the flanges or an element (20, 26) meshed with the two flanges is provided with at least one converter (50, 60, 70, 80, 90; 94) for generating an electrical signal and/or acoustic signal from a mechanical movement, wherein said converter is designed to generate the signal on the basis of a periodic movement of the flanges relative to one another, at least if the relative movement of the two shafts to one another, which occurs as the shafts rotate due to a misalignment of said shafts, exceeds a certain value.
摘要:
The invention relates to a method and a corresponding device for the non-destructive and contactless detection of flaws in a test piece (13) that is moved at a certain speed (v) relative to a probe (14) characterized by a specific effective width (WB). According to the invention, a periodic electrical signal comprising a carrier whose amplitude and/or phase is/are modulated by a flaw (15) in the test piece is detected by means of the probe. The probe signal is filtered and sampled with the aid of a triggerable A/D converter stage (35) in order to obtain a demodulated digital test signal which is filtered using a digital frequency-selective, adjustable second filter unit (52) so as to generate a useful signal that is evaluated to identify a flaw in the test piece. The A/D converter stage is triggered at an nth, integer fraction of the frequency of the carrier, n being selected in accordance with the flaw frequency which is established as the ratio between the relative speed between the test piece and the probe and the effective width of the probe. The frequency-selective second filter unit is adjusted according to said flaw frequency.
摘要:
Disclosed are a device and an associated method for detecting metallic objects or flaws on objects. According to the invention, at least one transmission coil is supplied with an alternating voltage by a carrier signal triggered by a computer while a substantially amplitude-modulated receive signal is simultaneously received by means of at least one reception coil. The carrier signal contained in the receive signal is demodulated using absolute value generation and phase generation with the aid of a Fourier or wavelet transformation process.
摘要:
The invention relates to a method for bringing two bodies (1, 2, 6, 7) in predetermined positions with respect to one another, which is carried out by an alignment system comprising data spectacles (12). The dimensions of the body (1, 2, 6, 7) and/or respective positions of the body (1, 2, 6, 7) are determined relative to each other by a data processing means (17) of the data spectacles (12) on the basis of images which are detected by an image detection means (16) of the data spectacles (12). Furthermore, an adjustment value is displayed in a display means (18) of the data spectacles (12).
摘要:
The invention relates to a method and a corresponding device for the non-destructive and contactless detection of flaws in a test piece (13) that is moved at a certain speed (v) relative to a probe (14) characterized by a specific effective width (WB). According to the invention, a periodic electrical signal comprising a carrier whose amplitude and/or phase is/are modulated by a flaw (15) in the test piece is detected by means of the probe. The probe signal is filtered and sampled with the aid of a triggerable A/D converter stage (35) in order to obtain a demodulated digital test signal which is filtered using a digital frequency-selective, adjustable second filter unit (52) so as to generate a useful signal that is evaluated to identify a flaw in the test piece. The A/D converter stage is triggered at an