scholarly journals A New Method of Mass Measurement for Checkweighers

2010 ◽  
Vol 17 (2) ◽  
pp. 151-162 ◽  
Author(s):  
Kengo Fukuda ◽  
Koji Yoshida ◽  
Tetsuya Kinugasa ◽  
Morihito Kamon ◽  
Yoichiro Kagawa ◽  
...  
Keyword(s):  
Signal Processing ◽  
Production Process ◽  
Mass Measurement ◽  
Automatic Machine ◽  
New Method ◽  
Time Duration ◽  
Optical Device

A New Method of Mass Measurement for CheckweighersA checkweigher is an automatic machine to measure the weight of in-motion products. It is usually located around the end of the production process and ensures the weight of a product within specified limits. Any products are taken out of line if their weights are out of the specified limits. It is usually equipped with an optical device. It is used to make a trigger to set the time duration to allow a product to move completely on the weigh belt for sampling the weight. In this paper, a new method of mass measurement for checkweighers is proposed which uses just signal processing without the optical device. The effectiveness of the method is shown through experiments. Also a possibility of faster estimation of weight is shown.

Signal processing in SPR fiber sensors: Some remarks and a new method

2018 ◽  
Vol 268 ◽  
pp. 150-156 ◽  
Author(s):  
E. Rodríguez-Schwendtner ◽  
A. González-Cano ◽  
N. Díaz-Herrera ◽  
M.C. Navarrete ◽  
Ó. Esteban
Keyword(s):  
Signal Processing ◽  
New Method ◽  
Fiber Sensors

CC-DHCR PLANNING AND SCHEDULING METHOD BASED ON SLAB CLUSTER

2008 ◽  
Vol 07 (02) ◽  
pp. 249-252 ◽  
Author(s):  
HELAN LIANG ◽  
SUJIAN LI
Keyword(s):  
Continuous Casting ◽  
Production Process ◽  
Dynamic Scheduling ◽  
New Method ◽  
Scheduling Problem ◽  
Scheduling Problems ◽  
Planning And Scheduling ◽  
Scheduling Method

Focusing on the limitations of the traditional Continuous Casting-Direct Hot Charge Rolling (CC-DHCR) planning and scheduling methods that rarely consider dynamic scheduling problems, a new method is put forward. The key idea is to make out clusters and integrated plans in the planning layer, and then to adjust the rolling sequences according to the slab cluster-based strategy in the dynamic scheduling layer. Results of the test with data from practical production process show that the method can effectively solve the CC-DHCR planning and scheduling problem and increase the DHCR ratio.

scholarly journals A new method to generate superoscillating functions and supershifts

2021 ◽  
Vol 477 (2249) ◽  
pp. 20210020
Author(s):  
Yakir Aharonov ◽  
Fabrizio Colombo ◽  
Irene Sabadini ◽  
Tomer Shushi ◽  
Daniele C. Struppa ◽  
...  
Keyword(s):  
Signal Processing ◽  
Quantum Mechanics ◽  
Large Class ◽  
Science And Technology ◽  
Fourier Component ◽  
New Method ◽  
Weak Values ◽  
Antenna Theory ◽  
Superoscillating Functions ◽  
Band Limited

Superoscillations are band-limited functions that can oscillate faster than their fastest Fourier component. These functions (or sequences) appear in weak values in quantum mechanics and in many fields of science and technology such as optics, signal processing and antenna theory. In this paper, we introduce a new method to generate superoscillatory functions that allows us to construct explicitly a very large class of superoscillatory functions.

scholarly journals Dynamic Time Slice Calculation for Round Robin Process Scheduling Using NOC

2015 ◽  
Vol 5 (6) ◽  
pp. 1480
Author(s):  
G Siva Nageswara Rao ◽  
N. Srinivasu ◽  
S.V.N. Srinivasu ◽  
G. Rama Koteswara Rao
Keyword(s):  
Scheduling Algorithm ◽  
Turnaround Time ◽  
Round Robin ◽  
Fine Tuning ◽  
New Method ◽  
Time Slice ◽  
Process Scheduling ◽  
Time Duration ◽  
Dynamic Time ◽  
Ready Queue

<p>Process scheduling means allocating a certain amount of CPU time to each of the user processes.  One of the popular scheduling algorithms is the “Round Robin” algorithm, which allows each and every process to utilize the CPU for short time duration.  Processes which finish executing during the time slice are removed from the ready queue.  Processes which do not complete execution during the specified time slice are removed from the front of the queue, and placed at the rear end of the queue. This paper presents an improvisation to the traditional round robin scheduling algorithm, by proposing a new method. The new method represents the time slice as a function of the burst time of the waiting process in the ready queue. Fixing the time slice for a process is a crucial factor, because it subsequently influences many performance parameters like turnaround time, waiting time, response time and the frequency of context switches.  Though the time slot is fixed for each process, this paper explores the fine-tuning of the time slice for processes which do not complete in the stipulated time allotted to them.</p>

scholarly journals A Crack Size Quantification Method Using High-Resolution Lamb Waves

Sensors ◽  
2021 ◽  
Vol 21 (20) ◽  
pp. 6941
Author(s):  
Xianjun Li ◽  
Jinsong Yang ◽  
Guangdong Zhang
Keyword(s):  
Signal Processing ◽  
High Resolution ◽  
Pulse Compression ◽  
Lamb Waves ◽  
Tone Burst ◽  
Crack Size ◽  
Time Duration ◽  
Quantification Method ◽  
Wave Package ◽  
Signal Processing Methods

Traditional tone burst excitation cannot attain a high output resolution, due to the time duration. The received signal is much longer than that of excitation during the propagation, which can increase the difficulty of signal processing, and reduce the resolution. Therefore, it is of significant interest to develop a general methodology for crack quantification through the optimal design of the excitation waveform and signal-processing methods. This paper presents a new crack size quantification method based on high-resolution Lamb waves. The linear chirp (L-Chirp) signal and Golay complementary code (GCC) signal are used as Lamb wave excitation signals. After dispersion removal, these excitation waveforms, based on pulse compression, can effectively improve the inspection resolution in plate-like structures. A series of simulations of both healthy plates and plates with different crack sizes are performed by Abaqus CAE, using different excitation waveforms. The first wave package of the S0 mode after pulse compression is chosen to extract the damage features. A multivariate regression model is proposed to correlate the damage features to the crack size. The effectiveness of the proposed crack size quantification method is verified by a comparison with tone burst excitation, and the accuracy of the crack size quantification method is verified by validation experiments.

A Method for Maintenance Scheduling in Manufacturing Systems Based on TPM and MFOP

2010 ◽  
Vol 44-47 ◽  
pp. 404-408
Author(s):  
Jiang Long ◽  
Wei An Jiang
Keyword(s):  
Production Process ◽  
Manufacturing Systems ◽  
Maintenance Scheduling ◽  
New Method ◽  
Manufacturing Equipment ◽  
Maintenance Schedule ◽  
Optimal Maintenance

In order to improve the overall equipment effectiveness, a new method for maintenance scheduling in manufacturing systems using the philosophies of TPM and MFOP is presented in this paper，considering both the production process and maintenance operations of manufacturing equipment. An LCC analysis is also conducted for evaluating and searching for the optimal maintenance schedule.

scholarly journals Digital Signal Processing–based Dynamic Mass Measurement System for Egg Weighing Process

2017 ◽  
Vol 50 (4) ◽  
pp. 97-102 ◽  
Author(s):  
İsmail Yabanova
Keyword(s):  
Signal Processing ◽  
Digital Signal Processing ◽  
Mass Measurement ◽  
Digital Signal ◽  
Load Cell ◽  
Analog To Digital ◽  
Manufactured Products ◽  
Measurement Signal ◽  
Dynamic Weighing ◽  
To Receive

In this study, an electronic, mechanical and software system, where the weight measurements of eggs can be performed dynamically, is developed. As the speed is an important factor in the production sector, it is of significant importance that the manufactured products be weighed in a rapid and correct manner. For this reason, systems where the products are dynamically weighed are developed. However, as the products are weighed while they are moving in dynamic weighing systems, undesired disturbing effects occur on the measurement signal. The product weights must be measured at required speeds by eliminating this disturbing effect. Dynamic weighing is performed using a load cell. A digital signal processing–based card has been developed to measure the signal received from the load cell and to send it to the computer. The eggs are weighed while they are moving as they roll over the load cell. A program has been developed using the LabVIEW program to receive, filter and analyze the data read and sent to the computer by digital signal processing. In addition, the configuration adjustments of the integrated analog-to-digital converter that reads data from the load cell can also be performed thanks to this program.

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