A5030235624- Microwave and Dielectric Measurement Techniques
- Sensor Technology and Measurement Systems
- Radio Frequency Integrated Circuit Design
- Scientific Measurement and Uncertainty Evaluation
- Advanced Electrical Measurement Techniques
- Microwave Engineering and Waveguides
- Viral gastroenteritis research and epidemiology
- Terahertz technology and applications
- Power Line Communications and Noise
- Bacteriophages and microbial interactions
- Software System Performance and Reliability
- RFID technology advancements
- Polymer Nanocomposite Synthesis and Irradiation
- Bluetooth and Wireless Communication Technologies
- Dielectric materials and actuators
- Infection Control and Ventilation
- Acoustic Wave Resonator Technologies
- Energy Efficient Wireless Sensor Networks
- Industrial Vision Systems and Defect Detection
- Innovation in Digital Healthcare Systems
- Electromagnetic wave absorption materials
- IoT and Edge/Fog Computing
- Electronic Packaging and Soldering Technologies
- Technology and Data Analysis
- Gyrotron and Vacuum Electronics Research
Tübitak National Metrology Institute
2003-2024
Office of Management
2022
Shahid Chamran University of Ahvaz
2022
The calibration industry is renowned for its diverse and sophisticated equipment complex processes, which necessitate innovative solutions to keep pace with rapidly advancing technology. This paper introduces an enhancement existing microservice-based cloud architecture, aimed at effectively managing the inherent complexity within this field. enhanced architecture seamlessly integrates various types communication technologies, aligning stakeholder expectations into a unified system that...
Radio Frequency (RF) power sensor calibration is one of the essential measurements in RF and microwave metrology. For a reliable accurate calibration, there are various methods, such as substitution method, direct comparison transfer method (DCTM), vector network analyzer (VNA)-based (VBCM). The VBCM that derived from DCTM. It preferred since VNA has better measurement capability fewer connection requirements for devices. In this study, milestones potential application errors given by...
Providing automated and networked solutions on the cloud will remarkably facilitate ongoing digitalization efforts in Metrology calibration industry.The AutoRFPower application was developed to automate RF power measurement process uncertainty calculations.This study presents our research moving this a environment adapting it perform sensor calibrations.The cloud-based initiates communication with equipment, transfers test points client computer activities locally, finally data back...
Most calibration laboratories prefer the Direct Comparison Transfer Method (DCTM) for a reliable and accurate of power sensors in radio frequency (RF) scope. studies suggest using this method, with its automatic level control (APLC) RF signal generators. The APLC is preferred to keep output generator same, while sensor calibrated reference connected measurement system. known mechanisms are also explained DCTM, comparison factor values carried out without process DCTM given study....
AUTORFPOWER software has been developed for automatic RF power measurement at microwave frequencies. In this study, the capabilities of are explained and compared with commercial alternatives. The advantages to metrological works its contributions future R&D discussed.
The aim of this paper is to compare the power measurement capabilities in millimetre- and sub-millimetre-wave frequency bands several national metrology institutes one research institute. first comparison, WR-6.5 waveguide (110 GHz 170 GHz), involved NPL, TUBITAK UME PTB. second WR-1.5 (500 750 METAS, UME, LNE, WAT, GUM VDI. Two types travelling standards were used for these comparisons: a thermoelectric sensor band calorimetric bands. was characterised by participants against their own...
With the development of technology, digitalization studies have begun in metrology applications, and digital certificates accordance with ISO 17025 standard started to be produced. There is a need for platform where calibration (DCC) / test report (DTR) produced today created future are shared. In this study, topics that must include according explained, information given about Blockchain structure, which currently widely used financial field. The suggested use as sharing metrological needs...
RF power measurement is essential in and microwave metrology. For reliable accurate measurement, automatic preferred. A software application C#, named AutoRFPower, was developed for uncertainty calculations at this study. According to the GUM document, enhanced by utilizing Law of Propagation method Monte Carlo Simulation method. Trial measurements were performed different levels frequencies between 50 MHz 18 GHz using AutoRFPower software. carried out based on trial Oracle Crystal Ball...
In this article, correlation between of Phi6 bacteriophage virus (equivalent SARS-CoV2) spread and disinfection methods are pointed out. Most the existing including thermal (UV), physical chemical were applied new (infrared (IR) microwave (MW)) proposed, studied presented. The containing aerosols droplets was investigated by means Brownian motion simulations using COMSOL software visualized a powerful laser high speed camera. Comparative studies have been done for IR, MW, UV, chemicals...
The frequency response of the materials which are used in communication systems has gained increasing importance nowadays. Frequency measurements laboratory environments do not contain sufficient information about real working environment conditions. free space dielectric measurement method, known as one most frequently material characterization methods at high frequencies, is to give more accurate results under operating In this study, using TUBITAK UME’s infrastructure, millimetre wave...
Direct comparison transfer method is known as the best with low uncertainty to calibrate of RF power sensors at most national metrology institute and accredited calibration laboratories. Commercial sensor services have not been started millimeter wave frequency yet. In order get ready for commercial service, a software was developed on C# platform waveguide between 75 GHz 1.1 THz bands. this study, process frequencies described direct method. Developed used WR10 WR6.5 Uncertainty analysis...
Automatic RF power measurements have become indispensable for reliable and accurate in high frequency systems, which are increasingly used nowadays. In the project subject to this study, an automatic measurement software that can perform multiple has been developed. manual automatically by using developed evaluated also advantages of contributions uncertainty calculations presented.
In recent years, BNC type devices such as attenuator and termination are used for high frequency measurements. Unfortunately, there is no any primary standard to obtain traceability devices. It proposed N adapter characterization approach calibration standards, opens, shorts matched loads of Electrical delay calculated characterize then it measurement standards. To validate approach, known standards measured compared with actual results. Obtained results show good agreement. Difference...
Bilateral comparison of calibration factor microwave power sensor was carried out between National Metrology Institute Turkey (TÜBİTAK UME) and Measurement Calibration Center at Saudi Standards, Quality Organization the Kingdom Arabia (SASO NMCC). In this comparison, TÜBİTAK UME pilot laboratory supplied travelling standard with N type connector. Nine different frequency points 0 dBm level were determined for in prepared technical protocol. Each participant used their own measurement...
In this letter, a software for calibration factor (CF) measurement of radio frequency (RF) power sensors (PS) by using VNA-based direct comparison transfer method (VBDCTM) was developed on C# platform. Measurements were performed between 10 MHz and 18 GHz range. When the factors calculated with conventional CF novel compared, maximum difference 4.56% found in – band. Therefore, automatic based VBDCTM, which has less complexity, can be preferred to measuring sensors.
The frequency response of the materials which are used in milimetre wave communication system has gained increasing importance nowadays.Frequency measurement laboratory environments do not contain sufficient information about real working environment conditions.Free space, known as one most frequently material characterization method at high frequencies, is to give more accurate results under operating conditions.In this study, using TUBITAK UME's infrastructure, free space and uncertainty...
Commercial power sensors operating above 110 GHz frequencies have begun to be supplied due the development of communication systems. However, characterization these is still a problem solved. In this study, measurements performed for identification RF between and 170 according thermal principle studies determining parameters measurement uncertainty calculations based on are included. It has been shown that preformed with used in high long-term should take into account stability linearity sensor.
This paper presents comparisons of the power measurement capabilities in millimetre and sub-millimetre-wave frequency bands several national metrology institutes one research institute. The first comparison is WR-6.5 waveguide (110 GHz to 170 GHz) second WR-1.5 (500 750 GHz). Two types travelling standard were used: a thermoelectric sensor (TPS) band calorimetric (CPS) band. TPS was characterised by participants against their own standards generalised effective efficiency calculated. CPS...
TUBİTAK UME has established a new power sensor calibration setup incorporating monitor utilizing the direct comparison transfer method for frequencies up to 50 GHz. The system adds TÜBİTAK UME's existing capability measure sensors with type Nand 3.5 mm connectors. measurement was validated using certificate values of each working frequency range. Good agreement found between previous results and those obtained system.
This comparison covers the measurement of calibration factors (CF) power sensors and was carried out where SASO NMCC TUBITAK UME participated, on frame GULFMET. Calibration are used for characterization RF sensors. to measure power, is an important mean achieve traceability measurements. bilateral performed by measuring a sensor at frequencies 10 MHz, 50 1 GHz, 4 8 12 15 18 level 0 dBm. TÜBİTAK acting as pilot laboratory. The travelling standard provided NMCC. responsible monitoring...
A new calibration method is investigated for conventional VNA calibration. It based on teaching the error terms of to a Neural Network (NN). well-known two ports standard adequate this method. Experimental results are presented and compared data obtained with traditional techniques.
Today, calculable impedance standards are preferred for the verification and traceability of VNAs that measure most accurate precise reflection coefficient at high frequencies. In this study, it is included to obtain parameters from dimensional measurements used frequencies up 90 GHz, known as millimeter waves, including 5G operating in future. The effect analysis uncertainty on calculation study.