www.melanexjou.fora.pl
toqevepasco
FAQ
Szukaj
Użytkownicy
Grupy
Galerie
Rejestracja
Profil
Zaloguj się, by sprawdzić wiadomości
Zaloguj
Forum www.melanexjou.fora.pl Strona Główna
->
Forum testowe
Napisz odpowiedź
Użytkownik
Temat
Treść wiadomości
Emotikony
Więcej Ikon
Kolor:
Domyślny
Ciemnoczerwony
Czerwony
Pomarańćzowy
Brązowy
Żółty
Zielony
Oliwkowy
Błękitny
Niebieski
Ciemnoniebieski
Purpurowy
Fioletowy
Biały
Czarny
Rozmiar:
Minimalny
Mały
Normalny
Duży
Ogromny
Zamknij Tagi
Opcje
HTML:
NIE
BBCode
:
TAK
Uśmieszki:
TAK
Wyłącz BBCode w tym poście
Wyłącz Uśmieszki w tym poście
Kod potwierdzający: *
Wszystkie czasy w strefie EET (Europa)
Skocz do:
Wybierz forum
Jakaś kategoria
----------------
Forum testowe
Przegląd tematu
<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>loiwtjsf</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Śro 18:13, 15 Gru 2010<span class="gen"> </span> Temat postu: ugg milano A new portable dual-stylus surface roug</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">A new portable dual-stylus surface roughness measuring instrument <br /> <br /> <br />Contour, bearing curve (6) Operation 2.3 Instrument virtual instrument panel work (Figure 2) 3 computer controlled measuring instrument and equipment 3.1 driver circuit design computer controlled measuring instrument for the standard serial and parallel use of computer data acquisition, control bus flapper with 1SA: Listen does not have the advantages: common good, not to increase computer hardware overhead; applications directly with the portable computer interface, easy miniaturization of the system. The measuring instrument used computer printer adapter, parallel port, based on the Enhanced Parallel Port EPP protocol, data collection, MD conversion and stepper motor control. The data port, status port, control port addresses are Ox378H, Ox379H, Ox37AH. 1 Figure 23.2 Instrument Driver circuit design the circuit by the signal conditioning, filtering, A / D, such as stepper motor drive circuit. Inductance measurement circuit core is based on the new LVDT (linear variable differential transformer) signal processing chip, AD698, it is an integrated circuit chip solution r all the LVDT signal conditioning problems. LVDT connected to the same, just add a few external passive components to set frequency and gain can be converted to regular LVDT displacement adjustable DC voltage signal, the full-scale nonlinear distortion is 0.05% to significantly improve system accuracy and stability. Low-pass filter circuit can filter the sinusoidal modulation noise, vibration and mechanical movement suppress noise environment. Underway data acquisition system while mixing filtering role. To ensure accuracy and speed,<a href="http://www.stivaliuggboots.com" target="_blank" class="postlink">ugg milano</a>, MD converter high-speed successive approximation Li Chuan MD chip 12-bit AD1674. In the data collection process by the generic array logic chip GAL16V8 generate A / D conversion and data read timing signals required. Computer through the printer port, optical isolators. Took control of eight four-phase stepper motor reaction, the step angle of 0.9. , Precision screw pitch 0.5real, it moves each step displacement (horizontal resolution) is 1.25. Stepper motor timing of work generated by the computer software. Figure 3,<a href="http://www.stivaliuggboots.com" target="_blank" class="postlink">ugg stivali</a>, signal conditioning, filtering software design schematic Qian 4, the main potato plug the measuring instrument software architecture is based on the IabwindcV1 analysis functions, virtual instrument panel cited (continued on page 13) * 9 * with a \ a hoop features fdb0-100-2DO a 300-400 (b] 00-l0.2030.4050.60.7080.91 one phase Zhou feature t.) \: \; j {\ !;!};;_. -:: I Figure 4 Frequency response of digital filter 8 Conclusion (c] 0l. 0l5o2 groan Xie, coral snail: oo foot carp Figure 5 Schematic diagram of the blood test simulation to teach data collection system, filter and phase shift of contradictions. Filter signal processing methods. applied to the rotor moving a nozzle hydraulic unit; Ping and. random signal processing. National Defense Industry Press, l996-5 balance tests,<a href="http://www.stivaliuggboots.com" target="_blank" class="postlink">stivali ugg</a>, to meet the needs of the phase and amplitude accuracy. 2 Wu Zhengyi and Testing Technology and Signal Processing, Tsinghua University a curse kettle stupid curse - Lan Ji Liu, F ~ belly & days, 19 so 9o., Io ~ programming language is blind. Xi'an Xiao Chun Li Electronics Ramie Ramie Tang Pi Chi basket ... ... ~ accurately estimated. More importantly, it basically solved the balancing of a '... a c on the next page 9} eight convenient for users to use and reduce the misuse rate. 5 test results after calibration equipment. author conducted a large number of experiments to verify the accuracy and repeatability, this gives some typical measurement result: Ra = 4.089pm, 0.344pm multi-model repeated measures groove l0 times and the results are as follows:} J model for more than eight sturgeon instrument readings indicated the value of seeking change in indication of poor J Ra = 4.Onl4.092f0.0B% l0.99% Ra = O ・ 344pmJ0-34 white l archery 0.58% J2 ・ 82% measurement of a workpiece turning somewhere ( 10) Ra mean of 5.959,<a href="http://www.ed-love-ca.com" target="_blank" class="postlink">ed hardy clothing</a>, ttm. indication of change of the 0.8l%. with a T at lysu measurement of surface roughness Ra measured mean value of the premises 5.942 Ⅻ ・, indication error of 0.29%. 6 Conclusion The instrument design, the following innovations: ① measured by dual-needle structure, expanding the scope of application; ② signal conditioning circuit A1) 698, high precision, small distortion; ③ operate virtual instrument panel, easy to use. Reference 1b. ldw set,<a href="http://www.airjordansshoescheapnike.com" target="_blank" class="postlink">air jordan shoes cheap</a>, 1. I ~ t'8 Man dish Tsui I, I'IATIONh. Llt '~ tllt. . t. Post 2l spit Qin M:,, _ww. e, d. on ・ l ・ <br /> <br />相关的主题文章： <br /> <br /> <br /> <a href="http://ecc.forumup.us/viewtopic.php?p=38378&mforum=ecc#38378" target="_blank" class="postlink">ugg italia Tianjin Tibet, the new civil service co</a> <br /> <br /> <a href="http://www.appsn.com/space.php?uid=9077&do=blog&id=145929" target="_blank" class="postlink">stivali ugg Of precision slip ring signaling the m</a> <br /> <br /> <a href="http://www.jiu8.com/space.php?uid=28189&do=blog&id=148061" target="_blank" class="postlink">ugg italia Dressing Pelican _1448</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
fora.pl
- załóż własne forum dyskusyjne za darmo
Powered by
phpBB
© 2001, 2005 phpBB Group
Regulamin
FAQ
Szukaj
Użytkownicy
Grupy
Galerie
Rejestracja
Zaloguj się, by sprawdzić wiadomości
Zaloguj