標(biāo)題: mems的典型代表,微型陀螺儀的內(nèi)部奧妙(附內(nèi)部數(shù)據(jù)表,本人自己翻譯的 [打印本頁] 作者: minmin0000 時(shí)間: 2009-2-15 21:10 標(biāo)題: mems的典型代表,微型陀螺儀的內(nèi)部奧妙(附內(nèi)部數(shù)據(jù)表,本人自己翻譯的 Datasheet0 q, q( Y! A7 D% R/ w. \
數(shù)據(jù)表 ! ^' {0 {! W6 d8 e2 H! H
Bosch Sensortec- O) Z1 a# L8 z8 A5 s1 E
博世傳感器 0 ^5 ^1 F2 K: K5 h* u4 z9 q# `SMB380 型+ u6 ], n2 { A) R8 o+ b
Three-axis-accelerometer r& Z8 [) w/ r. W3 n
三軸加速度計(jì)(陀螺儀,數(shù)字信號(hào)輸出) , Q, R+ A- T; j4 ]這款陀螺儀是民用品中比較流行的,體積2*8*10mm& q4 N4 b; E8 _. @- e9 S; A% i# K
采用可編程的控制方法,3.3-5v的電源輸入.其他的見數(shù)據(jù)表吧:# `7 O: l) R2 w4 y
(............ ! m1 O# J+ W$ O6 ?3.2 INTERRUPT SETTINGS ) }* [; h$ c3 J5 `
Five different types of interrupts can be programmed. When the corresponding criterion * O$ h6 Q; D0 s: T0 s
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined # t g+ Z7 k2 K. cand drive the interrupt pad with an Boolean <OR> condition. , u4 c( ^8 E6 \ d/ ]2 ^6 Q$ {3.2中斷設(shè)置! Y7 \* w1 N& S* ^! g0 h$ P
5種不同類型的可編程中斷。當(dāng)相應(yīng)的(中斷)準(zhǔn)則有效時(shí),中斷引腳被一個(gè)高電平觸發(fā)。所有的中斷準(zhǔn)則都是相結(jié)合的(combined ),而且可以用布爾<OR>條件來( Boolean <OR> condition)驅(qū)動(dòng)中斷緩沖器。' u& t5 N9 F* O" B) \
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Interrupt generations may be disturbed by changes of EEPROM, image or other control bits 0 d4 Q, w- I+ e# |because some of these bits influence the interrupt calculation. As a consequence, no write ( k6 s2 v( Z) V
sequence should occur when microprocessor is triggered by interrupt or the interrupt should be 9 K+ M( q. d1 L& w5 p$ {' ~# k7 h
deactivated on the microprocessor side when write sequences are operated. * I3 z2 p- ]6 j- b$ ?# @6 z- C中斷的產(chǎn)生可能被EEPROM ,image或其他控制位的改變所改變.因?yàn)槠渲幸恍┛刂莆挥绊懼袛嘤?jì)算。因此,未寫的(中斷)時(shí)間序列應(yīng)該在微處理器被其他中斷觸發(fā)(生效)前發(fā)生,或者微處理器應(yīng)該屏蔽(后來發(fā)生的)中斷當(dāng)已寫(中斷)時(shí)間序列(write sequences)正在運(yùn)行時(shí)。8 |0 |2 s- s7 z" Q3 p/ y8 q6 {) k [
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Interrupt criteria are using digital code coming from digital filter output. As a consequence all ' F8 w, _5 C ?thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration ' c5 l' u# m( I. Q" k, j$ T7 n
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers 3 j, b \% ]3 r4 m, B' ccorresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%), $ k0 E0 A9 [1 c3 p$ R8 U2 K5 Q
thus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert ' i# C. \1 e" k# U
detection are proportional to bandwidth settings (section 3.1.3). Z- N( H$ g% ~8 u. @' y' z1 M0 y中斷準(zhǔn)則使用的數(shù)字代碼來自數(shù)字濾波器輸出。因此所有閾值的設(shè)置都由量程選擇開關(guān)來界定(section 3.1.3.2 ) 。用于高加速度和低加速度之間的去抖timiming是絕對值( HG_dur和LG_dur寄存器的一個(gè)最小可分辨信號(hào)(correspond to)相當(dāng)于1毫秒, timiming的準(zhǔn)確性于振蕩器精度成正比= + / -10 % ) , 因此,它并不依賴于選定的帶寬。用于motion中斷位和alert規(guī)則的timiming正比于帶寬設(shè)置(section 3.1.3 ) : l0 e3 T1 Y$ `0 ]; Z): u4 g2 w& |" @/ D2 C
這是本人接的一個(gè)翻譯活,不算什么機(jī)密,共40頁,但是還沒翻完,先看十頁吧.發(fā)出來就是讓大家看看mens系統(tǒng)的陀螺儀是怎么工作的!!!有興趣的話,可以十天后下我的完整版的數(shù)據(jù)表!!!作者: minmin0000 時(shí)間: 2009-2-15 21:24
基本只要學(xué)過單片機(jī),再看完這份數(shù)據(jù)表就能使用這款mens系統(tǒng)的陀螺儀了.很爽吧!!!!作者: minmin0000 時(shí)間: 2009-2-16 20:40
怎么沒人回帖???作者: 宋家大少 時(shí)間: 2009-2-17 12:08
導(dǎo)航產(chǎn)品中有這個(gè)陀螺儀,原來是數(shù)字信號(hào)輸出啊作者: 螺旋線 時(shí)間: 2009-2-17 12:32
留名占座. , B) k8 h0 @: t/ P' A看看作者: minmin0000 時(shí)間: 2009-2-18 03:00