M21.1
M21.1由于負(fù)載下轉(zhuǎn)速減小,其“步距角”也更小。實(shí)驗(yàn)測得空載和負(fù)載下聲波電機(jī)當(dāng)作步進(jìn)電機(jī)使用,但對超聲波電機(jī),其所謂的“步距角”是可變的,與波數(shù)和負(fù)載有關(guān),這樣,為實(shí)現(xiàn)電機(jī)的密定位,可采用步進(jìn)定位控制策略實(shí)驗(yàn)中步與步之間的時(shí)間間隔要合適,太短電機(jī)會(huì)產(chǎn)生噪聲,太長會(huì)延長定位時(shí)間,要根據(jù)實(shí)際要責(zé)對超聲波電機(jī)轉(zhuǎn)動(dòng)角度的計(jì)算,并且根據(jù)算法向單片機(jī)給出指令
l Westinghouse(西屋): OVATION系統(tǒng)、WDPF系統(tǒng)、WEStation系統(tǒng)備件。
l Rockwell Allen-Bradley: Reliance瑞恩、SLC500/1747/1746、MicroLogix/1761/1763/1762/1766/1764、CompactLogix/1769/1768、Logix5000/1756/1789/1794/1760/1788、PLC-5/1771/1785等。
l Schneider Modicon(施耐德莫迪康):Quantum 140系列處理器、控制卡、電源模塊等。
l ABB:工業(yè)機(jī)器人備件DSQC系列、Bailey INFI 90等。
l Siemens(西門子):Siemens MOORE, Siemens Simatic C1,Siemens數(shù)控系統(tǒng)等。
l Motorola(摩托羅拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
ALCO CONTROLS 1/2" ODF EXTRA KLEAN LIQUID LINE FILTER-DRIER, EK-304S *NEW*
CHESTERTON 694766, FLOW METER, 2.6 GPM, 0 TO 300 PSI GAUGE, 1/2" NPT, NIB
POHL TOOL COMPANY AX-10 ?" X 4? H.S.S. 2 FLUTE END MILL, LOT OF 3, NEW
BUSS-FUSETRON, LPJ-150SP, LOTS OF 3
FESTO PRESSURE REGULATOR VALVE LR-ZP-A/B-D-3
ROSEMOUNT D1E5C4Q4B4 TEMPATURE TRANSMITTER 06/99
SINE 3/4``NPT FORM 16 CORD GRIP 4A16-1DA6-A6 *NEW*
BUSSMANN LOW-PEAK LPN-RK-35SP, CLASS RK1, TYPE D 250V FUSE, NIB -BOX OF 10
C.S OSBORNE 3/4 ARCH PUNCH *LOT OF 3
WEATHERHEAD 90 ELBOW 1/2" NPT MALE X 3/8" JIC MALE , LOT OF 11
GATES POLY CHAIN GT SPROCKET, 8M-34S-62 *NIB UNOPENED*
ALLEN BRADLEY INDUCTIVE PORXIMITY DMINP7-E2 SEALED
WESTINGHOUSE 3 POLE 600 VAC MOTOR CIRCUIT PROTECTOR MCP0322