Thin tantalum films generated by glancing angle deposition serve as functional optical layers. Serial sectioning by a focused ion beam combined with scanning electron microscopy of the slices generates stacks of highly resolved images of this film. Dedicated image processing reconstructs the spatial structure such that 3-D image analysis yields geometric information that can be related to the optical performance.

The work proposes a novel model that describes the combined electrical and thermal interaction that exists between two elements that share the same suspended thermal reservoir. The model predicts the change in the electrical properties that the target element experiences when the source element heats up due to an applied electric power. The current convention is to assume the interaction as ideal, but we have shown that thermal losses exist that our model accounts for.

Vibrations in the manufacturing process are usually undesirable. However, vibrations in the ultrasonic range can be used to enhance process variables such as forces, wear or the machined surface. Thus far, it has not been possible to detect vibrations close to the process. This prevents a stable setting of vibration parameters. By measuring strains in the tool, conclusions about the shape and magnitude of vibrations could be drawn, enabling process-oriented measurements during turning.

The paper deals with the proposal of a new obstruction flowmeter (cone type) characterized by an improved geometry. Compared with a standard geometry cone flowmeter, the proposed one ensures better performance in terms of a higher discharge coefficient and less permanent pressure drops. Additionally, several experimental tests and numerical simulations have been performed to compare the overall performance granted by both flowmeters, endorsing the superiority of the proposed solution.