{"cited_by_count":181899,"description":"This cluster of papers focuses on frequency estimation in electrical metrology, particularly in the context of power system analysis and harmonic analysis. It explores methods such as Interpolated DFT, Fourier coefficients interpolation, and sine wave fitting for accurate frequency estimation. The cluster also delves into the application of Josephson voltage standards and digital signal processing techniques in metrological contexts.","display_name":"Advanced Electrical Measurement Techniques","domain_id":"3","external_ids":{"openalex":"https://openalex.org/T12300","wikipedia":"https://en.wikipedia.org/wiki/Frequency_estimation"},"field_id":"22","id":"T12300","keywords":[{"display_name":"electrical measurement","id":"electrical-measurement","score":0.3312,"url":"https://openalex.org/keywords/electrical-measurement"},{"display_name":"frequency measurement","id":"frequency-measurement","score":0.2527,"url":"https://openalex.org/keywords/frequency-measurement"},{"display_name":"voltage measurement","id":"voltage-measurement","score":0.2823,"url":"https://openalex.org/keywords/voltage-measurement"},{"display_name":"resistance measurement","id":"resistance-measurement","score":0.262,"url":"https://openalex.org/keywords/resistance-measurement"},{"display_name":"electrical measuring instruments","id":"electrical-measuring-instruments","score":0.4643,"url":"https://openalex.org/keywords/electrical-measuring-instruments"},{"display_name":"high-voltage measurement","id":"high-voltage-measurement","score":0.4798,"url":"https://openalex.org/keywords/high-voltage-measurement"},{"display_name":"power measurement","id":"power-measurement","score":0.2142,"url":"https://openalex.org/keywords/power-measurement"},{"display_name":"electricity meters","id":"electricity-meters","score":0.2571,"url":"https://openalex.org/keywords/electricity-meters"},{"display_name":"voltage transformers","id":"voltage-transformers","score":0.2156,"url":"https://openalex.org/keywords/voltage-transformers"},{"display_name":"spectral leakage","id":"spectral-leakage","score":0.2093,"url":"https://openalex.org/keywords/spectral-leakage"},{"display_name":"oscilloscope","id":"oscilloscope","score":0.2816,"url":"https://openalex.org/keywords/oscilloscope"},{"display_name":"Josephson voltage standard","id":"josephson-voltage-standard","score":0.7942,"url":"https://openalex.org/keywords/josephson-voltage-standard"},{"display_name":"resistance standard","id":"resistance-standard","score":0.5473,"url":"https://openalex.org/keywords/resistance-standard"},{"display_name":"voltage standard","id":"voltage-standard","score":0.6416,"url":"https://openalex.org/keywords/voltage-standard"},{"display_name":"voltage divider","id":"voltage-divider","score":0.2031,"url":"https://openalex.org/keywords/voltage-divider"},{"display_name":"inductance measurement","id":"inductance-measurement","score":0.2524,"url":"https://openalex.org/keywords/inductance-measurement"},{"display_name":"voltage metrology","id":"voltage-metrology","score":0.879,"url":"https://openalex.org/keywords/voltage-metrology"},{"display_name":"digital multimeter","id":"digital-multimeter","score":0.3807,"url":"https://openalex.org/keywords/digital-multimeter"},{"display_name":"phase angle measurement","id":"phase-angle-measurement","score":0.3844,"url":"https://openalex.org/keywords/phase-angle-measurement"},{"display_name":"AC voltage measurement","id":"ac-voltage-measurement","score":0.6585,"url":"https://openalex.org/keywords/ac-voltage-measurement"},{"display_name":"instrument transformers","id":"instrument-transformers","score":0.2548,"url":"https://openalex.org/keywords/instrument-transformers"},{"display_name":"electrical energy measurement","id":"electrical-energy-measurement","score":0.4526,"url":"https://openalex.org/keywords/electrical-energy-measurement"},{"display_name":"digital oscilloscope","id":"digital-oscilloscope","score":0.2548,"url":"https://openalex.org/keywords/digital-oscilloscope"},{"display_name":"electrical power measurement","id":"electric-power-measurement","score":0.3554,"url":"https://openalex.org/keywords/electric-power-measurement"},{"display_name":"high resistance measurement","id":"high-resistance-measurement","score":0.7064,"url":"https://openalex.org/keywords/high-resistance-measurement"}],"legacy_keywords":["Frequency Estimation","Fourier Coefficients","Interpolated DFT","Josephson Voltage Standards","Power System Analysis","Harmonic Analysis","Digital Signal Processing","Metrological Applications","Sine Wave Fitting","AC Voltage Standards"],"openalex_id":"https://openalex.org/T12300","source_created_date":"2024-01-23T15:27:13","source_updated_date":"2026-10-17T03:02:00","subfield_id":"2208","url":"/topics/T12300","works_api_url":"https://api.openalex.org/works?filter=topics.id:T12300","works_count":53493,"label":"Advanced Electrical Measurement Techniques","provider":"openalex","revision":"4b3fd553c26dc88b","taxonomy_revision":"f050b5d4780b1289","title":"Advanced Electrical Measurement Techniques","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"38350966654929457","address_version":"morton4x16-v1","coordinates":[3,22,2208,12300],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}