Höganäs AB has a customer center where they perform their cutomers production processes usingtheir own metal powder, thereby gaining knowledge of how the powder behaves and how it can be improved. The powder is usually pressed, and then sintered in a sintering furnace where temperature and atmosphere composition gives the component its desired characteristics. Höganäs AB didn’t save the parameters from these process’s in a easily accessible way, some values were not saved at all. To increase understanding of these parameters impact on the produced detail they wanted these parameters collected and stored in the cloud. They also wanted solution ideas and concepts for implementation of weight measuring on both the in- and output side of the furnace. This project used Ulrich & Eppinger’s product development method, modified by performing continous testing parallell to the design process. The project was also separated into three parts worked on simultaneously. Computer architecture, physical casing and weight measuring. To compile and upload to the cloud a Raspberry Pi 3 B+, a micro processor, was used. It connected via WiFi to upload files to OneDrive. The measured values from the furnace were gathered from the furnace’s PLC via OPCUA and a gas measuring unit via serial communication. Because of the use of metal powder there was conductive dust in the air which could lead to leakage currents and short circuiting if it were to gather on the processor unit. Hence the dust had to be keptaway. The casing was therefore designed to be relatively airtight. The casing was made with 3D-printed PETG. The seal utilized PETG’s elasticity to elastically deform an elevated seal, and thereby sealing the casing, without having to produce more components than a bottom and a lid. The cable feedthrough used the cables elastic deformation to seal. A screen was implemented to start and stop logging processes, which was also sealed using an overlapping lip around it’s rim. The logging of the furnace parameters was split in two logs, a day-log and a job-log. The daylog took measurements continously over a day in long intervals, 30 minutes. At the end of the day a log was uploaded for that day, hence the name. The job-log had to be started manually via the screen and was used to take measurements with higher frequency during a production series. Log files of both types were uploaded to a OneDrive folder. The product was tested with a number of final tests, both for the casing and the software. The casing was tested primarily for the numerical requirements set in the requirements specification. While the software was tested over a longer period of time to ensure functionality.The final product was a sealed, robust, easily disassembled and cable strain relieved 3D-printed box with a 3.5 inch touchscreen and a connected keyboard. It collected the desired data and compiled it to log files readable by programs such as Microsoft Excel. The weight measuring concept produced was a self-made solution with load cells under the loading ramp. The weight is then measured automatically during the regular loading process without disrupting it. Two backup solutions were also put forward.

M.Ing. / This thesis describes a full design project of a processor based sophisticated measurement instrument - the datalogger. It covers the theoretical approach to the design project followed with hardware and software design. Many nonstandard solutions in hardware and software parts are used to approach a target, and they are fully described. The world that surrounds us today is full of products based on science and technology knowledge. These products are part of everyday life. The development of science and technology is very much depend upon a parallel development of measurement techniques and instruments. Measurement and the technology of measurement called instrumentation, serves not only science but all branches of engineering, medicine and almost every sphere of human life. Measuring instruments are used in the monitoring and control of processes and operations, too. Most specialised instruments, such as the datalogger, are used in experimental, research and develop science and engineering work. This thesis is organised into six chapters. The dataloger position in the measurement instruments tree is shown in the first chapter. The electronics design philosophy follows in the next chapter. It covers the most common problems found when the new design project starts. The global design strategy with brief description of all steps follows. The second chapter contains the datalogger project history, the reasons for going into the project, and the requests of the new device, too. At the end of this chapter the basic work principle of the datalogger is described to allow an easily following applied solutions. The third chapter covers all datalogger design specialities that make the datalogger design different from the design of other measurement instruments. It starts with remote sensors problems and problems commonly connected to the input stage of similar systems. The second half of this chapter analyses the instrument precision and error sources. There are several different methods that precision can be increased. Two methods applied here, reducing measurement range and oversampling with noise, are briefly described. The forth chapter interpretates the design of the processor board. It starts with a general microcontroller overview, describing the reasons for selecting the Hitachi microcontroller H8/532. The most important microcontroller characteristics are shown, too. The second part of this chapter contains the organisation, connections and contents of other electronics blocks in the processor board. At the end of this chapter the processor board schematic and full characteristics are given. The datalogger's hardware is described in the fifth chapter. The basic work principles of the various hardware parts are given in the beginning. The hardware is broken down and described in the following way: power electronics, digital control, signal processing part, and interface cards. All parts are covered with detailed descriptions of design circuit and the following calculation. The last chapter shows the software for the datalogger. It starts with the mathematical calculation principle developed and used in the datalogger. The customer part which follows covers software and hardware part relation between user and datalogger. One of the datalogger's software speciality is organisation of RAM space which allows high software flexibility of the datalogger as a measurement instrument. At the end the full datalogger program organisation is given on a global level.

Examensarbetet utfördes på Calmon. Ett Ramverket för instrumenten:DA/AD - Modul, datalogger, klimatkammare och nätaggregat skapades medhjälp av programmet Matlab. Arbetet utfördes med hjälp av programmeringi syfte att kunna genomföra mätningar på föremål i klimatkammaren.Kommandon för styrning av instrumenten implementerades. För att vägledaanvändaren utvecklades en specifikation och ett exempelprogram.

This thesis describes the design of the data datalogger for collecting the operating data of the machine tool. Dataloggers and data acquisition systems are used in scientific research as well as in the industry for recording and analyzing large amounts of data. The control unit of the proposed system is the National Instruments CompactRIO platform. System software is created in the LabVIEW programming environment and uses both the FPGA circuit and the real-time processor of the control unit. Measured data are stored on the unit and in the database. The measurement status is reported via email.

This work deals with design and construction logger capable measure temperature and relative humidity value and save them. Work also solution maximize batery life and number of record storaged in bulit-in flash memory.

O presente trabalho reporta o esforço empenhado para relacionar nível d\'água e vazão, fazendo uso exclusivamente de medições de nível, em campo, durante a passagem de ondas de cheia através de um trecho de canal prismático situado no perímetro urbano da cidade de São Carlos, SP denominado Córrego do Gregório. Montagens para coleta de dados em campo foram testadas e foi utilizada a modelagem hidrodinâmica 1-D para a resolução das equações de Saint-Venant, através do método implícito de quatro pontos de Preissmann. Apesar do potencial do método, já apontado por alguns autores, o presente trabalho reporta dificuldades na realização de medições e também problemas na modelagem de trecho de canal com características muito particulares. Várias análises foram realizadas tais como a verificação do número de passos de tempo necessário para minimização dos efeitos da condição inicial imposta (IQ1), a verificação da celeridade de uma onda de cheia analisando os picos dos eventos e assim determinar o coeficiente de cisalhamento de Manning proposto por Aricò, Nasello e Tucciarelli (2009) e o método implícito na resolução das equações de SV proposto por Jin, Coran e Cook (2004), que funciona como um filtro baseado no número de Froude (condição do tipo de escoamento) também foi testado. Durante o evento do dia 23/03/2013 foi estimado as velocidades em campo. Para cada um dos 12 eventos registrados foi realizado uma simulação utilizando o modelo hidrodinâmico e o melhor resultado foi utilizado em uma segunda simulação para comparar as lâminas d\'água observadas e calculadas. Ao analisar o quanto os valores de erros máximos absolutos (ERMAX1 e ERMAX2) representam em relação ao máximo registro obtido no evento, em porcentagem, têm-se eventos com 3,6% até valores absurdos de 27,1%. Assim, trata-se de um trabalho teórico-experimental que oferece subsídios importantes para futuros trabalhos nessa direção. / This work reports the committed effort to relate water level and flow, using exclusively field measurements of level, during the passage of flood waves through a prismatic channel stretch located on the surroundings of São Carlos - SP called stream of Gregório. Assembles for data gathering in the field were tested and it was used 1-D hydrodynamic modeling for solving equations of Saint-Venant, through the four points Preissmann implicit method. Despite the potential of this method, as pointed out by some authors, this study reports difficulties in performing measurements and to model a channel stretch with very particular characteristics. Several analyzes were performed such as checking the number of time steps needed for minimizing the effects of the initial condition imposed (IQ1), verifying the celerity of a full wave analyzing the peaks of events and so to be able to determine the Manning friction coefficient proposed by Arico et al. (2009) and the implicit method to solve the S-V equations proposed by Jin, Coran e Cook (2004), which acts as a filter based on the Froude number (condition-type flow), was also tested. During the event of the day 23/03/2013 was estimated speeds in the field. For each of the 12 recorded events a simulation was made using a hydrodynamic model and the best result was used in a simulation to compare the second water depths observed and calculated. By analyzing how the values of maximum absolute errors (ERMAX1 and ERMAX2) account for the highest recording obtained at the event, in percentage, have been events with 3.6% until absurd values from 27.1%. So, it is a theoretical-experimental that offers important information for future work in this direction.

O presente trabalho reporta o esforço empenhado para relacionar nível d\'água e vazão, fazendo uso exclusivamente de medições de nível, em campo, durante a passagem de ondas de cheia através de um trecho de canal prismático situado no perímetro urbano da cidade de São Carlos, SP denominado Córrego do Gregório. Montagens para coleta de dados em campo foram testadas e foi utilizada a modelagem hidrodinâmica 1-D para a resolução das equações de Saint-Venant, através do método implícito de quatro pontos de Preissmann. Apesar do potencial do método, já apontado por alguns autores, o presente trabalho reporta dificuldades na realização de medições e também problemas na modelagem de trecho de canal com características muito particulares. Várias análises foram realizadas tais como a verificação do número de passos de tempo necessário para minimização dos efeitos da condição inicial imposta (IQ1), a verificação da celeridade de uma onda de cheia analisando os picos dos eventos e assim determinar o coeficiente de cisalhamento de Manning proposto por Aricò, Nasello e Tucciarelli (2009) e o método implícito na resolução das equações de SV proposto por Jin, Coran e Cook (2004), que funciona como um filtro baseado no número de Froude (condição do tipo de escoamento) também foi testado. Durante o evento do dia 23/03/2013 foi estimado as velocidades em campo. Para cada um dos 12 eventos registrados foi realizado uma simulação utilizando o modelo hidrodinâmico e o melhor resultado foi utilizado em uma segunda simulação para comparar as lâminas d\'água observadas e calculadas. Ao analisar o quanto os valores de erros máximos absolutos (ERMAX1 e ERMAX2) representam em relação ao máximo registro obtido no evento, em porcentagem, têm-se eventos com 3,6% até valores absurdos de 27,1%. Assim, trata-se de um trabalho teórico-experimental que oferece subsídios importantes para futuros trabalhos nessa direção. / This work reports the committed effort to relate water level and flow, using exclusively field measurements of level, during the passage of flood waves through a prismatic channel stretch located on the surroundings of São Carlos - SP called stream of Gregório. Assembles for data gathering in the field were tested and it was used 1-D hydrodynamic modeling for solving equations of Saint-Venant, through the four points Preissmann implicit method. Despite the potential of this method, as pointed out by some authors, this study reports difficulties in performing measurements and to model a channel stretch with very particular characteristics. Several analyzes were performed such as checking the number of time steps needed for minimizing the effects of the initial condition imposed (IQ1), verifying the celerity of a full wave analyzing the peaks of events and so to be able to determine the Manning friction coefficient proposed by Arico et al. (2009) and the implicit method to solve the S-V equations proposed by Jin, Coran e Cook (2004), which acts as a filter based on the Froude number (condition-type flow), was also tested. During the event of the day 23/03/2013 was estimated speeds in the field. For each of the 12 recorded events a simulation was made using a hydrodynamic model and the best result was used in a simulation to compare the second water depths observed and calculated. By analyzing how the values of maximum absolute errors (ERMAX1 and ERMAX2) account for the highest recording obtained at the event, in percentage, have been events with 3.6% until absurd values from 27.1%. So, it is a theoretical-experimental that offers important information for future work in this direction.

No description available.

This work deals with hardware and software solution for the temperature converter of the standard rezistance temperature Ni sensors with the output through the Ethernet, driven by the Rabbit microcontroller. First part of this thesis deals with the theory of the temperature measurement. There are introduced basic principles of the temperature sensors. In the next part of the work are introduced communication standard and application protocol Modbus. The rest of the work deals with the hardware concept of the converter, the control program of the converter and the program developed for the PC.

The work deals with the 32-bit microcontroller with AT91SAM7X256 ARM7 core. The overall purpose of the thesis is to use the microcontroller as a data logger in Orpheus robotic system. The main part of the work focuses on detailed description of the designed board, software and development environment. A comparison of different varieties of the microcontroller with this core is included.