Satu prosedur perakuan pemiawaian EDM mengikut perkembangan teknologi
semasa amat diperlukan kerana model EDM dalam pasaran kini dibina menggunakan
gelombang inframerah dan gelombang cahaya tampak. Oleh itu, tapak ujian
pengukuran jarak EDM konvensional tidak lagi sesuai kerana sifat gelombang dan
tujuan ujian sudah berbeza. Penyelidikan ini bertujuan memperkenalkan teknik ujian
jarak EDM baharu yang menunjukkan keberkesanan pengukuran jarak zig-zag
melalui pantulan cermin muka hadapan ke atas gelombang inframerah dan
gelombang cahaya tampak; memperkenalkan tapak ujian EDM bersaiz kecil dalam
makmal; menilai elemen-elemen berkaitan reka bentuk tapak ujian yang
mempengaruhi ketepatan pengukuran EDM; membentuk analisis berstatistik kaedah
kuasa dua terkecil sebagai penilaian khusus menguji kualiti pengendalian serta hasil
ujian; dan menghasilkan sistem sokongan keputusan bantuan komputer dalam proses
pengurusan pengukuran. Pendekatan penyelidikan merangkumi pemerhatian dan
temubual, edaran soal selidik, analisis data ujian EDM daripada rekod simpanan
JUPEM, ujian pengaruh persekitaran seperti suhu dan tekanan, dan penilaian ke atas
dapatan analisis kaedah kuasa dua terkecil. Hasil penyelidikan telah berjaya
menggabungkan reka bentuk tapak ujian EDM dan teknik analisis kuasa dua terkecil
membentuk satu tapak ujian EDM yang mampu mencapai nilai selisih piawai
sehingga 10-7m.
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There is a need for new EDM standard calibration procedures to fulfil the
current market model of EDMs that uses infrared waves and visible light waves.
Consequently, the standard conventional EDM test sites are presently unsuitable
because the nature of wave properties and the purposes of EDM test today are
different. The overall research objectives is to present a new EDM testing technique
and to show the effectiveness of zig-zag distance measurement with reflection from
front surface mirror on infrared and visible light waves EDM; introducing small
EDM test site in laboratory; assessing the relevant elements in designing the test site
that affects EDM accuracy measurement; forming the least squares method of
statistical analysis for precise assessment on the quality of operation and the tests
results; and producing a computer assisted decision support system in managing the
measurement process. The research approach adopted includes observations and
interviews, questionnaires distribution, analysis of previous EDM test data obtained
from JUPEM’s records, environmental impact tests such as temperature and
pressure, and assessment on the results of the least square adjustment. The research
outcomes has successfully combined the design of new test site with least square
adjustment technique specially developed for EDM tests that can produce standard
error value up to 10-7m.
Penentukuran jarak elektronik menggabungkan kaedah pengukuran zig-zag dengan pelarasan kuasa dua terkecil_Azlan Yahya_E3_2017_MYMY