Now showing items 1-6 of 6
Transparent Layer Compensation at the Active Triangulation Systems
The paper deals with an active triangulation technique of non-contact optical measurement of 3D properties. The basic features of the method - principle, advantages and disadvantages - are described first. But the main ...
A comparison of two modal analysis methods: An impact hammer versus laser vibrometry
(Czech Technical University in Prague, 2020-11-19)
This paper presents a comparative experimental-analytical study on the performance of Multi-Input Single-Output (MISO) and Single-Input Multi-Output (SIMO) techniques to identify the modal properties of a cantilever beam. ...
Versatile Chirp Sine Generator on Fix-point FPGA
(Czech Technical University in Prague, 2020-12-31)
This paper deals with a logarithmic and a linear chirp sine generation on a fixed-point FPGA mainly for vibration testing, nevertheless, the generator can also be used in other areas. A basic overview of the logarithmic ...
An Automated measurement system for measuring an overall power efficiency and a characterisation of piezo harvesters
(IOP Publishing, 2018-09-05)
Systems for measurement power characteristics of piezo harvesters in dependence on a frequency and a load resistance are not commonly used due its complexity. Therefore, the parameters are usually measured manually near ...
Tracking Filter Design for Predictive Maintenance of Jet Engine - Different Approaches and Their Comparison
The aim of this paper is to design, implement, test and compare several tracking filtration methods for predictive maintenance of a jet engine. Based on literature review multiple possible methods are described. Appropriate ...
A New Method to Perform Direct Efficiency Measurement and Power Flow Analysis in Vibration Energy Harvesters
Measuring the efficiency of piezo energy harvesters (PEHs) according to the definition constitutes a challenging task. The power consumption is often established in a simplified manner, by ignoring the mechanical losses ...