... addresses limitations in validity across different intensity domains and explores solutions integrating advanced analytics and signal processing. Design/methodology/approach Over 100 peer-reviewed sources were systematically reviewed to assess the validity and limitations of PPG sensors across...

... current measurement with harmonic signal processing to provide a reliable, nonintrusive alternative for pipeline monitoring. This method is adaptable to a variety of working conditions and suitable for long-distance use, offering great potential for improving pipeline safety. Corresponding author...

... and wearable use. Advances such as PEDOT:PSS coatings, nanomaterial enhancements and hybrid electrode designs enable high-density EMG recording with improved stability. These hardware improvements, when integrated with advanced signal processing and machine learning algorithms, allow for more precise...

... is adopted. The key technologies of the round inductosyn are classified into signal processing and angle calculation, testing, establishment of error models and compensation. Eventually, a systematic review for each module is conducted. Findings This paper comprehensively overviews the technologies...

... and historical measurements of one or more parameters such as vibration, temperature, electric current, pressure and acoustic emission to analyze the eminence of a fault or detect an existing fault (Randal, 2011 ; Al‐Najjar, 2012). Signal processing Condition monitoring Spectral analysis Fault diagnosis...

.... The triple valve is used to select VOCs and clean air. © Emerald Group Publishing Limited 2014 Signal processing Sensors Surgery Over the past few decades, electronic nose (Enose) has been extensively studied. It is now successfully used in many fields, such as quality assessment...

... to distinguish the classes of wound infection depends strongly on its parameters’ setting. To achieve an ideal performance, some methods must be used to optimize the sensor array and classifier. © Emerald Group Publishing Limited 2014 Signal processing Sensors Surgery An electronic nose (E...

.... In addition, it is effective in the brake test with a real vehicle. Guoyu Lin can be contacted at: Andrew.Lin@seu.edu.cn © Emerald Group Publishing Limited 2014 Signal processing Sensors Calibration Data capture Force The block diagram of sample module is shown in Figure 7...

... with limited cycles of unbalance vibration signal. Ping Cai can be contacted at: Pcai@sjtu.edu.cn © Emerald Group Publishing Limited 2013 Vibration Signal processing Balancing machine Unbalance measurement Unbalance rotor Vibration signal Signal extraction AR prediction model Signal...

... are illustrated. Ovidiu Ghita can be contacted at: ghitao@eeng.dcu.ie © Emerald Group Publishing Limited 2012 Signal processing Pattern recognition Texture classification Local binary patterns Rotational invariance Gabor filters Isotropic filters Textured surfaces...

... system which includes the laser, the string, position sensitive detector (PSD) and the corresponding signal processing circuit. Design/methodology/approach PSD is an optical semiconductor sensor that can fast locate the luminous spot position precisely, which means that it can output different...

... innovations in inductive position sensors and developed application‐specific sensor systems. © Emerald Group Publishing Limited 2010 Sensors Control technology Programming and algorithm theory Signal processing For more than a decade, Sagentia has made innovations in inductive position...

... Emerald Group Publishing Limited 2009 Flow Signal processing Sensors Pipelines The vast majority of flow meters provide a measure of volumetric flow. For fuel flows, it would be preferable to measure mass flow as this is generally proportional to energy flow. Very few flow meter types...

...‐zero false alarm rate to a user to give best confidence and maximum decision capability. Findings There are significant new requirements for through‐wall radar which a combination of UWB, continuous wave, and SAR techniques with recent signal processing advances and the advent of low‐cost radio...

... Sensors Uncertainty management Fault tolerance Signal processing In these standards, the emphasis is common interface. There is nothing concerned with sensor diagnostics and measurement quality. The SEVA concepts is introduced to the IEEE 1451 standards, or the SEVA sensor is produced according...

... importantly, improve business processes that rely on RFID data. © Emerald Group Publishing Limited 2006 Radiofrequencies Identification Control systems Signal processing Information is the fuel that drives the economy and the society today (Wyld, 2005). As manufacturing operations go...

... vulnerable part of the measurement channel. In that section the signal is transmitted by a very small power level and any power losses there cannot be compensated for by further signal processing. The output power of frequency sensors is in general considerably higher than that of voltage‐output sensors...

... is calculated in relation to the task of interfacing to a theoretical thin‐film conducting‐polymer sensor. © MCB UP Limited 2003 Signal processing Interfaces Sensors Electrical circuits For many animals, smell can easily rank as the most important sense; the most discriminating sense...

...Jon Rigelsford © MCB UP Limited 2003 --> Radar Sonar Signal processing NI co-founders inducted into electronic design's engineering hall of fame Francois Le ChevalierArtech House2002424 pp.ISBN 1-58053-338-8£76.00 Keywords: Radar, Sonar, Signal processing...

....) that the program can read/write to. The program can do arithmetic and/or conditional operation on the system variables, and can then control the display or outputs accordingly. © MCB UP Limited 2002 Control systems Signal processing The MEDACS 2000 series from Status Instruments represents...