The Experts below are selected from a list of 2799 Experts worldwide ranked by ideXlab platform
Endri Sujatmiko - One of the best experts on this subject based on the ideXlab platform.
-
Trainer Voltmeter Digital Sebagai Media Pembelajaran Teknik Digital Sekuensial Pada Kompetensi Keahlian Teknik Audio Video Di SMK N 2 Yogyakarta
2015Co-Authors: Endri SujatmikoAbstract:Trainer Voltmeter Digital Sebagai Media Pembelajaran Teknik Digital Sekuensial Pada Kompetensi Keahlian Teknik Audio Video Di SMK N 2 Yogyakarta Oleh : Endri Sujatmiko NIM: 08502241016 ABSTRAK Penelitian ini bertujuan untuk mengetahui desain, unjuk kerja, dan tingkat kelayakan dari Trainer Voltmeter Digital sebagai media pembelajaran teknik digital sekuensial pada kompetensi keahlian Teknik Audio Video di SMK Negeri 2 Yogyakarta. Penelitian ini menggunakan metode Research and Development. Obyek penelitian adalah trainer Voltmeter digital. Tahapan penelitian meliputi: 1) analisis, 2) desain, 3) implementasi, 4) pengujian, 5) validasi dan 6) Uji coba pemakaian. Metode yang digunakan dalam pengumpulan data meliputi: 1) pengujian dan pengamatan unjuk kerja, 2) kuisioner (angket) untuk mengetahui tingkat kelayakan media dilihat dari validasi isi (content validity) dan validasi konstruk (construct validity) serta uji coba pemakaian oleh siswa SMK N 2 Yogyakarta. Teknik analisis data menggunakan analisis deskriptif. Hasil penelitian menunjukkan trainer Voltmeter digital sebagai media pembelajaran teknik digital sekuensial meliputi rangkaian: 1) pembangkit pulsa, 2) pengontrol masukan pulsa, 3) pencacah desimal dan hexa, 4) decoder BCD, 5) display, 6) overflow, 7) DAC, 8) komparator, 9) selektor, dan 10) catu daya. Hasil pengujian dan pengamatan unjuk kerja setiap rangkaian board trainer dapat bekerja dengan baik dan saat digunakan sebagai alat ukur Voltmeter dapat mengukur tegangan sampai 220V AC maupun DC. Tingkat kelayakan media trainer tersebut dilihat dari uji validasi isi diperoleh 88,41%, uji validasi konstrak diperoleh 80,11% dan uji pemakaian oleh siswa diperoleh 82,14%, maka trainer Voltmeter digital ini layak digunakan sebagai media pembelajaran di SMK N 2 Yogyakarta
-
Trainer Voltmeter Digital Sebagai Media Pembelajaran Teknik Digital Sekuensial Pada Kompetensi Keahlian Teknik Audio Video Di SMK N 2 Yogyakarta
2013Co-Authors: Endri SujatmikoAbstract:Penelitian ini bertujuan untuk mengetahui desain, unjuk kerja, dan tingkat kelayakan dari Trainer Voltmeter Digital sebagai media pembelajaran teknik digital sekuensial pada kompetensi keahlian Teknik Audio Video di SMK Negeri 2 Yogyakarta. Penelitian ini menggunakan metode Research and Development. Obyek penelitian adalah trainer Voltmeter digital. Tahapan penelitian meliputi: 1) analisis, 2) desain, 3) implementasi, 4) pengujian, 5) validasi dan 6) Uji coba pemakaian. Metode yang digunakan dalam pengumpulan data meliputi: 1) pengujian dan pengamatan unjuk kerja, 2) kuisioner (angket) untuk mengetahui tingkat kelayakan media dilihat dari validasi isi (content validity) dan validasi konstruk (construct validity) serta uji coba pemakaian oleh siswa SMK N 2 Yogyakarta. Teknik analisis data menggunakan analisis deskriptif. Hasil penelitian menunjukkan trainer Voltmeter digital sebagai media pembelajaran teknik digital sekuensial meliputi rangkaian: 1) pembangkit pulsa, 2) pengontrol masukan pulsa, 3) pencacah desimal dan hexa, 4) decoder BCD, 5) display, 6) overflow, 7) DAC, 8) komparator, 9) selektor, dan 10) catu daya. Hasil pengujian dan pengamatan unjuk kerja setiap rangkaian board trainer dapat bekerja dengan baik dan saat digunakan sebagai alat ukur Voltmeter dapat mengukur tegangan sampai 220V AC maupun DC. Tingkat kelayakan media trainer tersebut dilihat dari uji validasi isi diperoleh 88,41%, uji validasi konstrak diperoleh 80,11% dan uji pemakaian oleh siswa diperoleh 82,14%, maka trainer Voltmeter digital ini layak digunakan sebagai media pembelajaran di SMK N 2 Yogyakarta
-
Digital Voltmeter Trainer As A Learning Media Of Digital Technique Sequential On The Competency Skills Of Audio Video Technique In SMK Negeri 2 Yogyakarta
2013Co-Authors: Endri SujatmikoAbstract:The purpose of this study is to know about the design, performance, and the eligibility level of the Digital Voltmeter Trainer as a learning media of digital technique sequential on the competency skills of Audio Video technique in SMK Negeri 2 Yogyakarta. Research and Development method is the method that be used in this research. The object of this study is the digital Voltmeter trainer. The cycles of the research are : 1) analysis, 2) design, 3) implementation, 4) test, 5) validation, 6) and the using test. In order to collect the data, the research used some methods, they are: 1) test and performance observation, 2) questionnaire, in order to know the eligibility level of the media, based on the content validity and construct validation and also the using test by students of SMK N 2 Yogyakarta. Describtive analysis is used as the technique to analyse the data. The results of the research showed that digital Voltmeter trainer as a learning media of digital technique sequential including some cycles: 1) pulse generator, 2) control the input pulse, 3) decimal and hexa counter, 4) decoder BCD, 5) display, 6) overflow, 7) DAC, 8) comparator, 9) selector, and 10) power supply. Test results of the test and performance observations of each circuit board trainer showed that it can work properly and when used as a gauge Voltmeter to measure voltage up to 220V AC or DC. The eligibility level media trainer can be seen from the validation test of contents the result up to 88.41%, the validation test of construct up to 80.11% and the using test by the student up to 82.14%, then the digital Voltmeter trainer be used as a learning media in SMK N 2 Yogyakarta. Keywords: learning media, trainer, digital voltmete
Sujatmiko Endri - One of the best experts on this subject based on the ideXlab platform.
-
trainer Voltmeter digital sebagai media pembelajaran teknik digital sekuensial pada kompetensi keahlian teknik audio video di smk n 2 yogyakarta
2013Co-Authors: Sujatmiko EndriAbstract:Trainer Voltmeter Digital Sebagai Media Pembelajaran Teknik Digital Sekuensial Pada Kompetensi Keahlian Teknik Audio Video Di SMK N 2 Yogyakarta Oleh : Endri Sujatmiko NIM: 08502241016 ABSTRAK Penelitian ini bertujuan untuk mengetahui desain, unjuk kerja, dan tingkat kelayakan dari Trainer Voltmeter Digital sebagai media pembelajaran teknik digital sekuensial pada kompetensi keahlian Teknik Audio Video di SMK Negeri 2 Yogyakarta. Penelitian ini menggunakan metode Research and Development. Obyek penelitian adalah trainer Voltmeter digital. Tahapan penelitian meliputi: 1) analisis, 2) desain, 3) implementasi, 4) pengujian, 5) validasi dan 6) Uji coba pemakaian. Metode yang digunakan dalam pengumpulan data meliputi: 1) pengujian dan pengamatan unjuk kerja, 2) kuisioner (angket) untuk mengetahui tingkat kelayakan media dilihat dari validasi isi (content validity) dan validasi konstruk (construct validity) serta uji coba pemakaian oleh siswa SMK N 2 Yogyakarta. Teknik analisis data menggunakan analisis deskriptif. Hasil penelitian menunjukkan trainer Voltmeter digital sebagai media pembelajaran teknik digital sekuensial meliputi rangkaian: 1) pembangkit pulsa, 2) pengontrol masukan pulsa, 3) pencacah desimal dan hexa, 4) decoder BCD, 5) display, 6) overflow, 7) DAC, 8) komparator, 9) selektor, dan 10) catu daya. Hasil pengujian dan pengamatan unjuk kerja setiap rangkaian board trainer dapat bekerja dengan baik dan saat digunakan sebagai alat ukur Voltmeter dapat mengukur tegangan sampai 220V AC maupun DC. Tingkat kelayakan media trainer tersebut dilihat dari uji validasi isi diperoleh 88,41%, uji validasi konstrak diperoleh 80,11% dan uji pemakaian oleh siswa diperoleh 82,14%, maka trainer Voltmeter digital ini layak digunakan sebagai media pembelajaran di SMK N 2 Yogyakarta.
-
trainer Voltmeter digital
2012Co-Authors: Sujatmiko EndriAbstract:Pembuatan proyek akhir ini bertujuan untuk membuat perangkat keras trainer Voltmeter digital dan untuk mengetahui unjuk kerjanya. Trainer Voltmeter digital ini dibuat dari beberapa blok-blok rangkaian yang fungsional dengan tujuan agar mudah untuk dipelajari dan dipahami saat digunakan. Metode rancang bangun trainer Voltmeter digital ini meliputi identifikasi kebutuhan, analisis kebutuhan, perancangan blok diagram rangkaian, perancangan rangkaian, pembuatan alat dan pengujian unjuk kerja alat. Prinsip kerja trainer Voltmeter digital ini yaitu trainer terdiri dari blok-blok rangkaian fungsional yang dirakit menjadi satu kesatuan sehingga dapat digunakan sebagai alat ukur Voltmeter digital AC dan DC. Hasil pembuatan perangkat keras trainer Voltmeter digital ini terdiri dari beberapa blok rangkaian yaitu rangkaian pembangkit pulsa, rangkaian pengontrol masukan pulsa, rangkaian pencacah desimal dan hexa, rangkaian decoder ke 7-segmen, rangkaian penampil, rangkaian overflow, rangkaian konvertor DAC, rangkaian Vref, rangkaian komparator pembanding, rangkaian selektor, dan rangkaian catu daya. Hasil unjuk kerja trainer Voltmeter digital secara keseluruhan dapat bekerja dengan baik sebagai alat ukur Voltmeter AC dan DC. Hasil pengujian rangkaian pembangkit pulsa dapat menghasilkan sinyal keluaran gelombang kotak dengan frekuensi mendekati 1190 Hz. Rangkaian konvertor DAC menghasilkan tegangan output maksimal sebesar 9,89 V. Masing-masing rangkaian dapat bekerja dengan normal saat digunakan sebagai alat ukur Voltmeter digital. Pada saat digunakan sebagai Voltmeter AC dapat mengukur tegangan antara 0-219 VAC dengan kesalahan sebesar 0,45% dan saat digunakan sebagai Voltmeter DC dapat mengukur tegangan antara 0-219 VDC dengan kesalahan sebesar 0,79%. Kata kunci : Trainer Voltmeter Digital, Voltmeter AC, Voltmeter DC
A. C. Böck - One of the best experts on this subject based on the ideXlab platform.
-
a dry cooled ac quantum Voltmeter
Superconductor Science and Technology, 2016Co-Authors: M. Schubert, R. Behr, Leon Palafox, M. Starkloff, A. C. Böck, J Lee, Katja Peiselt, S Anders, Richard Knipper, L SchaidhammerAbstract:The paper describes a dry-cooled AC quantum Voltmeter system operated up to kilohertz frequencies and 7 V rms. A 10 V programmable Josephson voltage standard (PJVS) array was installed on a pulse tube cooler (PTC) driven with a 4 kW air-cooled compressor. The operating margins at 70 GHz frequencies were investigated in detail and found to exceed 1 mA Shapiro step width. A key factor for the successful chip operation was the low on-chip power consumption of 65 mW in total. A thermal interface between PJVS chip and PTC cold stage was used to avoid a significant chip overheating. By installing the cryocooled PJVS array into an AC quantum Voltmeter setup, several calibration measurements of dc standards and calibrator ac voltages up to 2 kHz frequencies were carried out to demonstrate the full functionality. The results are discussed and compared to systems with standard liquid helium cooling. For dc voltages, a direct comparison measurement between the dry-cooled AC quantum Voltmeter and a liquid-helium based 10 V PJVS shows an agreement better than 1 part in 1010.
-
From AC quantum Voltmeter to quantum calibrator
2016 Conference on Precision Electromagnetic Measurements (CPEM 2016), 2016Co-Authors: R. Behr, B. Schumacher, Leon Palafox, M. Schubert, M. Starkloff, A. C. Böck, P. M. FleischmannAbstract:The AC Quantum Voltmeter, which was a breakthrough as an accredited, industrial-tested, fast and easy-to-use DC and AC voltage quantum-based calibrating system, has now been taken one step further with new extensive capabilities covering resistance and current measurements. Using equipment readily available in calibration laboratories, the new Quantum Calibrator covers a wide range of resistance by means of ratio measurement on a set of standard resistors. The same set of resistors is used for calibrating the current output of commercial calibrators, where the current is applied on a resistor and the output voltage is measured with the Josephson voltage standard.
-
an ac quantum Voltmeter based on a 10 v programmable josephson array
Metrologia, 2013Co-Authors: J Lee, R. Behr, Leon Palafox, M. Schubert, M. Starkloff, Alexander S Katkov, A. C. BöckAbstract:An ac quantum Voltmeter based on a 10 V programmable Josephson array that is simple to use, provides dc and ac calibration up to kHz range for equipment widely used in metrology, and ensures direct traceability to a quantum-based standard, is developed. This ac quantum Voltmeter is proven to match conventional Josephson standard systems at dc and extends its advantages up to 10 kHz in the low-frequency ac range. The ac quantum Voltmeter is capable of performing calibrations up to 7 VRMS in the frequency range from dc to 10 kHz completely under software control. A direct comparison at dc has demonstrated an uncertainty better than 2 parts in 1010 (k = 2). The uncertainty at 1 kHz is better than 1.7 µV V−1 (k = 2) for a measurement time of 1 min. The ac quantum Voltmeter is a robust and practical system that fulfils the needs of general metrology laboratories for quantum-based voltage calibrations.
R. Behr - One of the best experts on this subject based on the ideXlab platform.
-
frequency range extension of the ac quantum Voltmeter
Conference on Precision Electromagnetic Measurements, 2018Co-Authors: R. Behr, J Lee, Alexander S Katkov, O Kieler, S Bauer, L PalafoxAbstract:A recently introduced coherent sub-sampling technique has been implemented to extend the frequency range of our AC quantum Voltmeter up to 100 kHz. The measurement results are compared with differential sampling for frequencies up to 10kHz. Above 3 kHz all preliminary results show a deviation from nominal values which increases quadratic with frequency. Possible error sources and corrections are discussed.
-
a dry cooled ac quantum Voltmeter
Superconductor Science and Technology, 2016Co-Authors: M. Schubert, R. Behr, Leon Palafox, M. Starkloff, A. C. Böck, J Lee, Katja Peiselt, S Anders, Richard Knipper, L SchaidhammerAbstract:The paper describes a dry-cooled AC quantum Voltmeter system operated up to kilohertz frequencies and 7 V rms. A 10 V programmable Josephson voltage standard (PJVS) array was installed on a pulse tube cooler (PTC) driven with a 4 kW air-cooled compressor. The operating margins at 70 GHz frequencies were investigated in detail and found to exceed 1 mA Shapiro step width. A key factor for the successful chip operation was the low on-chip power consumption of 65 mW in total. A thermal interface between PJVS chip and PTC cold stage was used to avoid a significant chip overheating. By installing the cryocooled PJVS array into an AC quantum Voltmeter setup, several calibration measurements of dc standards and calibrator ac voltages up to 2 kHz frequencies were carried out to demonstrate the full functionality. The results are discussed and compared to systems with standard liquid helium cooling. For dc voltages, a direct comparison measurement between the dry-cooled AC quantum Voltmeter and a liquid-helium based 10 V PJVS shows an agreement better than 1 part in 1010.
-
From AC quantum Voltmeter to quantum calibrator
2016 Conference on Precision Electromagnetic Measurements (CPEM 2016), 2016Co-Authors: R. Behr, B. Schumacher, Leon Palafox, M. Schubert, M. Starkloff, A. C. Böck, P. M. FleischmannAbstract:The AC Quantum Voltmeter, which was a breakthrough as an accredited, industrial-tested, fast and easy-to-use DC and AC voltage quantum-based calibrating system, has now been taken one step further with new extensive capabilities covering resistance and current measurements. Using equipment readily available in calibration laboratories, the new Quantum Calibrator covers a wide range of resistance by means of ratio measurement on a set of standard resistors. The same set of resistors is used for calibrating the current output of commercial calibrators, where the current is applied on a resistor and the output voltage is measured with the Josephson voltage standard.
-
an ac quantum Voltmeter based on a 10 v programmable josephson array
Metrologia, 2013Co-Authors: J Lee, R. Behr, Leon Palafox, M. Schubert, M. Starkloff, Alexander S Katkov, A. C. BöckAbstract:An ac quantum Voltmeter based on a 10 V programmable Josephson array that is simple to use, provides dc and ac calibration up to kHz range for equipment widely used in metrology, and ensures direct traceability to a quantum-based standard, is developed. This ac quantum Voltmeter is proven to match conventional Josephson standard systems at dc and extends its advantages up to 10 kHz in the low-frequency ac range. The ac quantum Voltmeter is capable of performing calibrations up to 7 VRMS in the frequency range from dc to 10 kHz completely under software control. A direct comparison at dc has demonstrated an uncertainty better than 2 parts in 1010 (k = 2). The uncertainty at 1 kHz is better than 1.7 µV V−1 (k = 2) for a measurement time of 1 min. The ac quantum Voltmeter is a robust and practical system that fulfils the needs of general metrology laboratories for quantum-based voltage calibrations.
-
improvements of the ac quantum Voltmeter
Conference on Precision Electromagnetic Measurements, 2008Co-Authors: R. Behr, L Palafox, J KohlmannAbstract:The AC quantum Voltmeter, an instrument for measuring AC waveforms by comparing them to a Josephson waveform, has been enhanced. Two different improvements to the signal-to-noise ratio are presented. The signal amplitude has been significantly increased by using 10-V Josephson arrays. The noise contribution has been reduced by adding a preamplifier at the input of the sampling null detector.
J Lee - One of the best experts on this subject based on the ideXlab platform.
-
frequency range extension of the ac quantum Voltmeter
Conference on Precision Electromagnetic Measurements, 2018Co-Authors: R. Behr, J Lee, Alexander S Katkov, O Kieler, S Bauer, L PalafoxAbstract:A recently introduced coherent sub-sampling technique has been implemented to extend the frequency range of our AC quantum Voltmeter up to 100 kHz. The measurement results are compared with differential sampling for frequencies up to 10kHz. Above 3 kHz all preliminary results show a deviation from nominal values which increases quadratic with frequency. Possible error sources and corrections are discussed.
-
a dry cooled ac quantum Voltmeter
Superconductor Science and Technology, 2016Co-Authors: M. Schubert, R. Behr, Leon Palafox, M. Starkloff, A. C. Böck, J Lee, Katja Peiselt, S Anders, Richard Knipper, L SchaidhammerAbstract:The paper describes a dry-cooled AC quantum Voltmeter system operated up to kilohertz frequencies and 7 V rms. A 10 V programmable Josephson voltage standard (PJVS) array was installed on a pulse tube cooler (PTC) driven with a 4 kW air-cooled compressor. The operating margins at 70 GHz frequencies were investigated in detail and found to exceed 1 mA Shapiro step width. A key factor for the successful chip operation was the low on-chip power consumption of 65 mW in total. A thermal interface between PJVS chip and PTC cold stage was used to avoid a significant chip overheating. By installing the cryocooled PJVS array into an AC quantum Voltmeter setup, several calibration measurements of dc standards and calibrator ac voltages up to 2 kHz frequencies were carried out to demonstrate the full functionality. The results are discussed and compared to systems with standard liquid helium cooling. For dc voltages, a direct comparison measurement between the dry-cooled AC quantum Voltmeter and a liquid-helium based 10 V PJVS shows an agreement better than 1 part in 1010.
-
an ac quantum Voltmeter based on a 10 v programmable josephson array
Metrologia, 2013Co-Authors: J Lee, R. Behr, Leon Palafox, M. Schubert, M. Starkloff, Alexander S Katkov, A. C. BöckAbstract:An ac quantum Voltmeter based on a 10 V programmable Josephson array that is simple to use, provides dc and ac calibration up to kHz range for equipment widely used in metrology, and ensures direct traceability to a quantum-based standard, is developed. This ac quantum Voltmeter is proven to match conventional Josephson standard systems at dc and extends its advantages up to 10 kHz in the low-frequency ac range. The ac quantum Voltmeter is capable of performing calibrations up to 7 VRMS in the frequency range from dc to 10 kHz completely under software control. A direct comparison at dc has demonstrated an uncertainty better than 2 parts in 1010 (k = 2). The uncertainty at 1 kHz is better than 1.7 µV V−1 (k = 2) for a measurement time of 1 min. The ac quantum Voltmeter is a robust and practical system that fulfils the needs of general metrology laboratories for quantum-based voltage calibrations.
