Wireless solution for high voltage metrology
INTI"In high voltage metrology, some tests require floating measurements. For example, low-current measurement in high voltage can be used to evaluate the systematic error of high voltage divider. Also, floating devices are recommended for low-voltage measurements of divider output during experimental tests. To safely perform these measurements with continuous data registration and low workload a wireless meter is currently under development. This talk presents the tool and its application as well as our experience during this work. The meter design is focused on the analog amplifiers and its protection. In the first step, low-accuracy instruments are designed but we plan to develop high-accuracy meter."
- 16 Comments -
Thank you for your presentation. Two questions: Through the WIFI would it be possible to implement somehow a remote quality control of the meter's performance itself? E.g. building a network of meters and monitoring their performance in comparison to each other and identifying the outlier; or through a direct validation; or even remote calibration? Students brings time, enthusiasm to do experiments, new ideas, others? Is the model of working with students (who make their thesis) a good model to promote/push the developments needed for digital transformation in the NMIs?
Hello, Marcos. Good work, well done. Question: I understand this is a project you haven´t implemented yet. How this meassurement is being done nowadays? The microcontroller won't be stand alone, It will be controlled by a PC, am I right? And you have used the micro to gain wifi access
Dear Alexis, Thank you for all your questions. We plan to establish an automatic calibration/verification of the meter using as a reference a high accuracy multimeter. The measurements are not continuous so the meter can be disconnected from the high voltage device. Our actual applications do not require a sensor network. Yes, students are great, especially for new trends, for example, Axel has a good education in IoT electronics. Regards
>> MARCOS BIERZYCHUDEK PLEASE READ THIS COMMENT << We are expressing our doubts in this platform. The idea is to have topics to talk about and questions to answer during the "presential/virtual session" and answer them during the Workshop using Microsoft Team (14th, 15th and 16th of July 2020). As moderator, I will "interview you" using the questions generated during this week by participants in what we named: The Exchange in plenary. We will have 1 hour of exchange for Automation of laboratory processes topic (it means that in 1 hour we need to cover those 6 videos with questions and answers)
>> IMPORTANT MARCOS BIERZYCHUDEK PLEASE READ THIS COMMENT << Due to great success of the questions and answers section during the current week. And because we are having just a few minutes during the plenary to cover all comments or questions. We decided to change the rules a little bit. We will be pleased if you could continue answering questions through the comment section (this include CENAM's platform or YouTube's comments section). Excellent job! My thanks to you and all in helping get as far as we have during this event! Regards, Angel Ochoa
Thanks Marcos. Do you think that you will be able to perform an automatic remote calibration of the meters?
Dear Marco, good work! I have a question: The wireless connection in the case by Wi-Fi, this device has a connection to the organization network, or is a dedicated connection only for this application?
Tools that make measurement safer and sufficiently accurate are needed in all aspects of metrology. Remote sensors and tools must also be validated in order to support confidence in their outputs.
Interesting application, congratulations to the working group. I would like more information from the reception part, what information is it handling and if they have been weighing to link it directly to the calibration certificates, thank you.
Dear Alexis, Remote calibration of this meter is possible by a portable and turn-key calibrator. However, this application is outside of our short-term working plan. Regards, Marcos
Dear Jose, Now we use the WIFI connection to read data with a cellphone when both devices are connected to the same WIFI router. Next, we plan to save the measurement in a database where the user can read the information from other PC connected to the network. Regards
Dear Rubén, The first prototype just transfers the measurement data because it is devoted to experimental tests and not calibrations. Regards
Dear Diego, Now a day these measurements are performed with a hand multimeter or a 6.5 multimeter. Both devices do not allow wireless communication. The microcontroller controls the ADC and other sensors and transmits the information. It doe not need external control. Regards
Good afternoon Marcos, first of all, I found your work very interesting, not only from the metrological point of view, but also from the point of view of safety in the operation. I have a question about the operation of the resistor tower itself. I understand that the "high voltage" to be measured is divided into many smaller voltage measurements. In the case of the multiplexing system, is there a pre-established measurement sequence to consider short-term drift? Perhaps the question is how much time needs the system to make a complete sequence through the different resistances, and if you consider that this time has no implication for short-term drift. Many thanks.
Hello Marcos. Excellent work!. I would like to know how they planned to ensure the integrity and security of data on the network. ISO 27000 series or the NIST SP800 guides or some other?
¿Ven posible, la fabricación y puesta en uso de este equipamiento en Argentina? ¿Creen, que deberá ser acompañado de alguna legislación que lo permita, la vigente lo cubre?