This is the history of learning the classic theory of pyroelectric detectors and the list of the achievements constituted by Alexander Bondarenko.
Prior to — Never heard anything about pyroelectric detectors.
2004, Autumn — First taste of passive infrared pyroelectric motion detector.
2005, Autumn — Start research on motion detectors as a hobbyist.
2006, Autumn — English self-improvement, continue research, gathering information.
2007, Autumn — Motion detector testing, learning patents by Eltec Instruments, Inc. on serial and parallel dual sensing element arrangements.
2008, Summer — Start private English lessons on reading academic and patent literature with a good teacher.
2009, Spring — Start analyzing gathered information.
2010, Spring — Winner at a conference with a motion detector improvement.
2011, Autumn — Join the university, getting MSc. on research of pyroelectric detectors; preparing for PhD.
2012, Autumn — Gathered all necessary electronic parts for the first experimental setup.
2013, Autumn — Applying to a PhD program on pyroelectric detector optimization.
2014, Spring — Start learning the classic theory of a pyroelectric detector; first experiment with a pyroelectric detector in voltage mode.
2015, Summer — The first unsuccessful attempt to rewrite the classic theory of a pyroelectric detector being found as unclear or incomplete.
2016, Summer — The first unsuccessful publication on “Mathematical modeling of a pyroelectric detector”, falsely peer-reviewed, published, and later failed by this author due to a lot of mistakes found.
2017, Autumn — The first successful, but incomplete attempt to publish “Mathematical modeling of a pyroelectric detector” as a small brochure.
2018, Autumn — The second successful attempt to finish “Mathematical modeling of a pyroelectric detector”, revised and extended.
2019, Spring — A successful attempt at a method of mathematical processing of logging data output.
2020, Autumn — The first success on voltage mode dual sensing element pyroelectric detector identification. Details are kept secret.
2021, Spring — The first success on single element pyroelectric detector identification. The first success on “Metrology of transient responses”, published as 2022. Details are kept secret.
2022, Spring — Year of disclosures. Further disclosure of the details of pyroelectric detector identification. The disclosure of the complete mathematical modeling of a pyroelectric detector in voltage mode. The disclosure of the complete identification for pyroelectric detectors of all types tested, published as 2023.
2023, Spring — The first video album on “Metrology of transient responses. Part III” on youtube. Starting channel @pyrodetector (you are allowed to subscribe). - no longer available.
2024, Autumn — Metrology of Transient Responses. Part IV. The Highest Achievable Dual Sensing Element Voltage Mode Pyroelectric Detector Identification. True Uniformity in Samples. True Quality Assurance. 50 Optimized (tau_T=tau_E) Pieces Tested.
2025, ?