Measurement-data processor based on a desk calculator

1979 ◽  
Vol 22 (6) ◽  
pp. 669-670
Author(s):  
V. N. Brener ◽  
V. G. Medresh ◽  
V. A. Petik ◽  
V. P. Khadzhaev ◽  
I. Ya. Khaskin
2020 ◽  
Vol 12 (2) ◽  
pp. 80-87
Author(s):  
Dwiny Meidelfi ◽  
Andre Febrian Kasmar ◽  
Fanni Sukma ◽  
Anggie Meyfrian Pratama

Control and monitoring of water in a tank is a computer instrumentation needed in industry. This research discusses a water monitoring application in water torn automatically based on android and supported by a microcontroller. One of the developing technology fields is microcontroller technology. In designing this device, it uses a NodeMCU microcontroller as a data processor and an ultrasonic sensor as data input as well as a buzzer and servo. An ultrasonic sensor is a device that can measure the distance of an object by utilizing reflected ultrasonic waves. This water monitoring uses firebase as a database to store data. To display measurement data, the interface is also designed using the Android Studio application software in the form of graphs, pump status, and water notifications. The test results show that the ultrasonic sensor used is able to measure water levels from 2 cm to 20 cm with an average measurement error of 4.93%. Water monitoring is designed to be able to produce a system output response according to the reference value given. In addition, water level monitoring can be displayed on the Android software interactively


Author(s):  
KEMALASARI KEMALASARI ◽  
PAULUS SUSETYO WARDANA ◽  
RATNA ADIL

ABSTRAKPolusi udara dapat mempengaruhi kesehatan paru-paru. Umumnya pengukuran fungsi paru menggunakan spirometer, dilakukan di rumah sakit dan membutuhkan waktu yang lama untuk mengetahui hasilnya. Untuk mengatasi masalah ini, dirancang Spirometer non-invasive yang portable dengan menggunakan sensor piezoelektrik yang diletakkan di dada. Perubahan tekanan yang diukur oleh sensor piezoelektrik adalah 10 – 80 mV, sehingga diperlukan rangkaian amplifier, filter, clamper, mikrokontroler AVR ATMega 32 sebagai pengolah data I/O dan LCD grafik untuk menampilkan hasil ukur serta SD card untuk menyimpan data. Alat ini mengukur  kapasitas vital paru-paru, respirasi rate, dan jika hasil ukur kapasitas vital paru-paru kurang  dari 80 % dari nilai prediksi kapasitas paru-paru maka kondisi paru-paru dideteksi tidak sehat.  Hasil dari pengujian menunjukkan bahwa persentase nilai keberhasilan alat adalah 95,70 %, hasil pengukuran dan deteksi kondisi paru-paru dapat langsung diketahui dari tampilan di LCD grafik, data hasil pengukuran bisa disimpan dan alat berukuran kecil sehingga portable, mudah digunakan oleh siapapun dan dimanapun dengan nyaman.Kata kunci: Spirometer, Piezoelektrik, Mikrokontroler, Kapasitas Paru-Paru, LCD Grafik.ABSTRACTAir pollution can be affected the health of the lungs. Generally the measurement of lungs function use a spirometry, performed  in the hospital and takes a long time to know the results. To overcome this problem, a portable non-invasive Spirometry is designed using a piezoelectric sensors placed on the chest. The changes of pressure is measured by the piezoelectric sensor are 10 - 80 mV, so it needs a amplifier circuit, filter, clamper, ATMega 32 AVR microcontroller as I/O data processor and LCD graph to display result of measurement and SD card for save the data. This instrument measure lungs vital capacity, respiration rate, and if the measured of lungs vital capacity is less than 80 % of the predicted of lung capacity, then the lung is detected unhealthy. The result of testing indicated that the percentage of success value of instrument is 95,70 %, the results of measurements and detection of lung conditions can be directly know from the view in LCD graphs, measurement data can be saved and size of instrument is small so portable, easy to use by anyone and anywhere with comfortably.Keywords: Spirometry, Piezoelectric, Microcontroller, Lungs Capacity, LCD Graphic.


2019 ◽  
pp. 52-56
Author(s):  
Yu.F. Glukhov ◽  
N.V. Krutikov ◽  
A.V. Ivanov ◽  
N.P. Muravskaya

We have studied and analyzed status and metrological supervision of blood glucose monitors, individual devices for a person’s blood glucose level measurement. It has been indicated that nowadays blood glucose monitors like other individual devices for medical measurement are not allowed to be involved in telemedicine public service. This accounts for absence of metrological supervision with these measurement devices in telemedicine. In addition, the key problem is absence of safe methods and means of remote verificaition, calibration and transmission of measurement data to health care centers. The article offers a remote test method for blood glucose monitors using a number of resistors with values correlating with measured blood glucose level. The available method has been successfully trialed in real practice.


2014 ◽  
Vol 5 (2) ◽  
pp. 157-166 ◽  
Author(s):  
Cs. Szász

The paper presents an intelligent building (IB) development strategy emphasizing the locally available non-polluting renewable energy resources utilization. Considering the immense complexity of the topic, the implementation strategy of the main energy-flow processes is unfolded, using the net zero-energy building concept (NZEB). Noticeably, in the first research steps the mathematical background of the considered NZEB strategy has been developed and presented. Then careful LabView software-based simulations prove that the adopted strategy is feasible for implementation. The result of the above mentioned research efforts is a set of powerful and versatile software toolkits well suitable to model and simulate complex heating, ventilation and air-conditioning processes and to perform energy balance performance evaluations. Besides the elaborated mathematical models, concrete software implementation examples and measurement data also is provided in the paper. Finally, the proposed original models offer a feasible solution for future developments and research in NZEB applications modelling and simulation purposes.


2005 ◽  
Vol 33 (1) ◽  
pp. 38-62 ◽  
Author(s):  
S. Oida ◽  
E. Seta ◽  
H. Heguri ◽  
K. Kato

Abstract Vehicles, such as an agricultural tractor, construction vehicle, mobile machinery, and 4-wheel drive vehicle, are often operated on unpaved ground. In many cases, the ground is deformable; therefore, the deformation should be taken into consideration in order to assess the off-the-road performance of a tire. Recent progress in computational mechanics enabled us to simulate the large scale coupling problem, in which the deformation of tire structure and of surrounding medium can be interactively considered. Using this technology, hydroplaning phenomena and tire traction on snow have been predicted. In this paper, the simulation methodology of tire/soil coupling problems is developed for pneumatic tires of arbitrary tread patterns. The Finite Element Method (FEM) and the Finite Volume Method (FVM) are used for structural and for soil-flow analysis, respectively. The soil is modeled as an elastoplastic material with a specified yield criterion and a nonlinear elasticity. The material constants are referred to measurement data, so that the cone penetration resistance and the shear resistance are represented. Finally, the traction force of the tire in a cultivated field is predicted, and a good correlation with experiments is obtained.


Author(s):  
Gary Goertz ◽  
James Mahoney

Some in the social sciences argue that the same logic applies to both qualitative and quantitative research methods. This book demonstrates that these two paradigms constitute different cultures, each internally coherent yet marked by contrasting norms, practices, and toolkits. The book identifies and discusses major differences between these two traditions that touch nearly every aspect of social science research, including design, goals, causal effects and models, concepts and measurement, data analysis, and case selection. Although focused on the differences between qualitative and quantitative research, the book also seeks to promote toleration, exchange, and learning by enabling scholars to think beyond their own culture and see an alternative scientific worldview. The book is written in an easily accessible style and features a host of real-world examples to illustrate methodological points.


2014 ◽  
Vol 6 (1) ◽  
pp. 1006-1015
Author(s):  
Negin Shagholi ◽  
Hassan Ali ◽  
Mahdi Sadeghi ◽  
Arjang Shahvar ◽  
Hoda Darestani ◽  
...  

Medical linear accelerators, besides the clinically high energy electron and photon beams, produce other secondary particles such as neutrons which escalate the delivered dose. In this study the neutron dose at 10 and 18MV Elekta linac was obtained by using TLD600 and TLD700 as well as Monte Carlo simulation. For neutron dose assessment in 2020 cm2 field, TLDs were calibrated at first. Gamma calibration was performed with 10 and 18 MV linac and neutron calibration was done with 241Am-Be neutron source. For simulation, MCNPX code was used then calculated neutron dose equivalent was compared with measurement data. Neutron dose equivalent at 18 MV was measured by using TLDs on the phantom surface and depths of 1, 2, 3.3, 4, 5 and 6 cm. Neutron dose at depths of less than 3.3cm was zero and maximized at the depth of 4 cm (44.39 mSvGy-1), whereas calculation resulted  in the maximum of 2.32 mSvGy-1 at the same depth. Neutron dose at 10 MV was measured by using TLDs on the phantom surface and depths of 1, 2, 2.5, 3.3, 4 and 5 cm. No photoneutron dose was observed at depths of less than 3.3cm and the maximum was at 4cm equal to 5.44mSvGy-1, however, the calculated data showed the maximum of 0.077mSvGy-1 at the same depth. The comparison between measured photo neutron dose and calculated data along the beam axis in different depths, shows that the measurement data were much more than the calculated data, so it seems that TLD600 and TLD700 pairs are not suitable dosimeters for neutron dosimetry in linac central axis due to high photon flux, whereas MCNPX Monte Carlo techniques still remain a valuable tool for photonuclear dose studies.


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