Construction of a Test System for Smart Meter Dynamic Error Using TASK Algorithm

2021 ◽  
pp. 104390
Author(s):  
Hongtao Shen ◽  
Peng Tao ◽  
Peng Ren ◽  
Yangrui Zhang ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Dynamic Error ◽  
Test System ◽  
Smart Meter

Neue Dimension der Zählerprüfung

BWK ENERGIE. ◽  
2019 ◽  
Vol 71 (01-02) ◽  
pp. 7-7
Keyword(s):  
Test System ◽  
Smart Meter

SMART METER | Höhere Leistung, verringerte Personalkosten: Das von der EMH Energie-Messtechnik GmbH, Brackel, entwickelte „Smart Test System“ beschleunigt die Genauigkeitsprüfung von Elektrizitätszählern und trägt dazu bei, Lieferengpässe abzubauen. Die weltweit erste Anlage dieser Art hat sich im Einsatz bei einem asiatischen Zählerproduzenten bereits bewährt.

scholarly journals Research on the Dynamic Compensation Method of the Shock Wave's Evaluation Pressure Sensor

2020 ◽  
Author(s):  
Wei Wang
Keyword(s):  
Shock Wave ◽  
Dynamic Characteristic ◽  
Pressure Sensor ◽  
Filter Design ◽  
Design Method ◽  
Dynamic Error ◽  
Measurement Range ◽  
Test System ◽  
Dynamic Compensation ◽  
Lower Natural Frequency

Abstract Due to the steep and changing fast rising edge of explosion shock wave signal, it asks for good dynamic characteristic of sensor and test system. As far as the development of the sensor level, they are difficult to achieve dynamic characteristic requirement of approximate distortionless transmission, so cause a large dynamic error in the actual test. This paper, aiming at providing theoretical support for technology guarantee and service of the shock wave testing system of national shooting range, conducts a research on the method of dynamic characteristic compensation of pressure sensor facing the power evaluation of the blast shock wave. The research proposes and studies the filter design method of dynamic compensation of pressure sensor based on PFQPSO (the progressive function quantum-behaved particle swarm optimization) algorithm, which belongs to inverse modeling. The dynamic compensation can be realized without knowing the model of sensor, so the extra error caused by dynamic modeling of sensors can be avoided. using 8510 series sensor can be used with lower natural frequency and lower measurement range from Endevco Company, this research has had experiment and modeling on the dynamic characteristics of shock tubes as well as design of dynamic compensation filter. Based on the analysis and confirmation, this study illustrates the possibility and effectiveness of this method.

scholarly journals Research on the Dynamic Compensation Method of the Shock Wave's Evaluation Pressure Sensor

2020 ◽  
Author(s):  
Wei Wang
Keyword(s):  
Shock Wave ◽  
Dynamic Characteristic ◽  
Pressure Sensor ◽  
Filter Design ◽  
Design Method ◽  
Dynamic Error ◽  
Measurement Range ◽  
Test System ◽  
Dynamic Compensation ◽  
Lower Natural Frequency

Abstract Due to the steep and changing fast rising edge of explosion shock wave signal, it asks for good dynamic characteristic of sensor and test system. As far as the development of the sensor level, they are difficult to achieve dynamic characteristic requirement of approximate distortionless transmission, so cause a large dynamic error in the actual test. This paper, aiming at providing theoretical support for technology guarantee and service of the shock wave testing system of national shooting range, conducts a research on the method of dynamic characteristic compensation of pressure sensor facing the power evaluation of the blast shock wave. The research proposes and studies the filter design method of dynamic compensation of pressure sensor based on PFQPSO (the progressive function quantum-behaved particle swarm optimization) algorithm, which belongs to inverse modeling. The dynamic compensation can be realized without knowing the model of sensor, so the extra error caused by dynamic modeling of sensors can be avoided. using 8510 series sensor can be used with lower natural frequency and lower measurement range from Endevco Company, this research has had experiment and modeling on the dynamic characteristics of shock tubes as well as design of dynamic compensation filter. Based on the analysis and confirmation, this study illustrates the possibility and effectiveness of this method.

scholarly journals Autonomous Navigation Control of UAV Using Wireless Smart Meter Devices

2019 ◽  
Vol 2 ◽  
pp. 64-72 ◽  
Author(s):  
Kiyoshi Ueda ◽  
Takumi Miyoshi
Keyword(s):  
Autonomous Navigation ◽  
Service Management ◽  
Control Method ◽  
Transmission Loss ◽  
Access Network ◽  
Electric Energy ◽  
Home Delivery ◽  
Test System ◽  
Management Control ◽  
Smart Meter

In preparation for the upcoming home delivery services that rely on Unmanned Aerial Vehicles (UAVs), we developed a new multi-hop radio network that is laid over a smart meter network transferring electric energy information only. In this network, a UAV follows, for navigation purposes, the topology of a virtual network overlaid on the physical smart meter network. We established a service management control method which does not rely on image analysis or map information processing, i.e. processes that consume precious power resources of the UAV. Instead, navigation is based on the routing technology. The current distance between the UAV and a node of the smart meter network is measured by means of the radio transmission loss value, therefore determining the position of the UAV. A two-layer network model has been proposed. One layer consists of a network of nodes in a residential area with scattered buildings – a location that is safer to navigate – while the other is an access network of nodes in a densely populated area. Then, we proposed methods to determine the direction of movement towards the next hop node on the data-link layer and the end node on the network layer, which is the target destination. We implemented a software-based test system and verified the effectiveness of the proposed methods.

Immunogold labeling of CMP-KDO synthetase produced by recombinant E. Coli cells

1987 ◽  
Vol 45 ◽  
pp. 924-925
Author(s):  
F. A. Durum ◽  
R. G. Goldman ◽  
T. J. Bolling ◽  
M. F. Miller
Keyword(s):  
Inclusion Bodies ◽  
Large Scale ◽  
Recombinant Dna ◽  
Test System ◽  
Cell Protein ◽  
Gram Negative Bacteria ◽  
Cytoplasmic Inclusions ◽  
Isolation And Purification ◽  
E Coli ◽  
Low Concentrations

CMP-KDO synthetase (CKS) is an enzyme which plays a key role in the synthesis of LPS, an outer membrane component unique to gram negative bacteria. CKS activates KDO to CMP-KDO for incorporation into LPS. The enzyme is normally present in low concentrations (0.02% of total cell protein) which makes it difficult to perform large scale isolation and purification. Recently, the gene for CKS from E. coli was cloned and various recombinant DNA constructs overproducing CKS several thousandfold (unpublished data) were derived. Interestingly, no cytoplasmic inclusions of overproduced CKS were observed by EM (Fig. 1) which is in contrast to other reports of large proteinaceous inclusion bodies in various overproducing recombinant strains. The present immunocytochemical study was undertaken to localize CKS in these cells.Immune labeling conditions were first optimized using a previously described cell-free test system. Briefly, this involves soaking small blocks of polymerized bovine serum albumin in purified CKS antigen and subjecting them to various fixation, embedding and immunochemical conditions.

Real Ear Sound Pressure Levels Developed by Three Portable Stereo System Earphones

1992 ◽  
Vol 1 (4) ◽  
pp. 52-55 ◽  
Author(s):  
Gail L. MacLean ◽  
Andrew Stuart ◽  
Robert Stenstrom
Keyword(s):  
High Frequency ◽  
Sound Pressure ◽  
Low Frequency ◽  
Test System ◽  
Output Frequency ◽  
Frequency Effects ◽  
Adult Men ◽  
Frequency Responses ◽  
Significant Difference ◽  
Sound Pressure Levels

Differences in real ear sound pressure levels (SPLs) with three portable stereo system (PSS) earphones (supraaural [Sony Model MDR-44], semiaural [Sony Model MDR-A15L], and insert [Sony Model MDR-E225]) were investigated. Twelve adult men served as subjects. Frequency response, high frequency average (HFA) output, peak output, peak output frequency, and overall RMS output for each PSS earphone were obtained with a probe tube microphone system (Fonix 6500 Hearing Aid Test System). Results indicated a significant difference in mean RMS outputs with nonsignificant differences in mean HFA outputs, peak outputs, and peak output frequencies among PSS earphones. Differences in mean overall RMS outputs were attributed to differences in low-frequency effects that were observed among the frequency responses of the three PSS earphones. It is suggested that one cannot assume equivalent real ear SPLs, with equivalent inputs, among different styles of PSS earphones.

Pre-clinical evaluation of a virtual reality neuropsychological test system: Occurence of side effects

2000 ◽  
Author(s):  
Tibor I. Kesztyues ◽  
M. Mehlitz ◽  
E. Schilken ◽  
G. Weniger ◽  
S. Wolf ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Side Effects ◽  
Clinical Evaluation ◽  
Neuropsychological Test ◽  
Test System
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