使用 STM32 的加速度计（LSM303D 传感器）计算振动答案

【问题标题】：Calculation vibration with accelerometer (LSM303D sensor)with STM32使用 STM32 的加速度计（LSM303D 传感器）计算振动
【发布时间】：2017-03-13 14:30:21
【问题描述】：

我想编写一个用于流体阀门老化或状态监测的算法。我读了一些关于阀门状态监测的文章，最后，我决定用加速度计传感器计算阀门的振动。目前，我正在使用 LSM303D 和 ADXL345 传感器。我正在从这个传感器（LSM303D）获取原始数据，比如

X-axis = -2587 negative
Y -axis = -2230 negative
Z - axis = 16063

这是Z轴方向的平均加速度吗？我已将传感器固定在阀门上（没有物理运动），并希望在打开和关闭阀门时测量振动。

如何使用我的原始数据创建使用 STM32 控制器进行振动计算的算法？请解释一下传感器的原始数据。

传感器数据表 http://www.st.com/content/ccc/resource/technical/document/datasheet/1c/9e/71/05/4e/b7/4d/d1/DM00057547.pdf/files/DM00057547.pdf/jcr:content/translations/en.DM00057547.pdf

STM32 数据表： http://www.st.com/content/ccc/resource/technical/document/datasheet/95/3c/2e/5b/21/09/45/a6/DM00115237.pdf/files/DM00115237.pdf/jcr:content/translations/en.DM00115237.pdf

输出： X轴 -2320,-2288,-2290,-2273,-2308,-2264,-2258,-2302,-2361,-2361,-2263,-2349,-2338,-2301,-2383,-2311,-2313 ,-2313,-2354,-2351,-2358,-2254,-2411,-2336,-2336,-2269,-2232,-2354,-2300,-2356,-2326,-2368,-2368,- 2295,-2370,-2345,-2344,-2342,-2323,-2323,-2341,-2290,-2292,-2328,-2363,-2347,-2347,-2303,-2330,-2384, -2306,-2318,-2348,-2348,-2289,-2300,-2384,-2301,-2269,-2269,-2391,-2314,-2294,-2327,-2343,-2331,-2331 ,-2247,-2313,-2403,-2284,-2336,-2336,-2323,-2340,-2276,-2277,-2353,-2400,-2400,-2321,-2296,-2317,- 2314,-2356,-2359,-2359,-2313,-2250,-2312,-2334,-2314,-2314,-2298,-2317,-2279,-2368,-2331,-2560,-2304, -2298,-2327,-2301,-2332,-2330,-2330,-2269,-2300,-2300,-2332,-2271,-2057,-2313,-2316,-2309,-2257,-2362 ,-2406,-2406,-2290,-2298,-2373,-2314,-2260,-2277,-2277,-2323,-2332,-2189,-2314,-2339,-2553,-2297,- 2332,-2327,-2289,-2347,-2326,-2326,-2319,-2361,-2330,-2352,-2329,-2550,-2294,-2311,-2312,-2327,-2344, -2362,-2360,-2280,-2307,-2307,-2370,-2307,-2211,-2264,-2313,-2354,-2317,-2344,-2352,-2288,-2288,-226 6,-2307,-2297,-2356,-2334,-2302,-2307,-2307,-2326,-2289,-2345,-2387,-2378,-2308,-2308,-2323,-2323, -2273,-2348,-2288,-2288,-2314,-2255,-2299,-2335,-2306,-2327,-2327,-2267,-2313,-2319,-2275,-2307,-2354 ,-2354,-2299,-2288,-2279,-2337,-2325,-2325,-2256,-2312,-2294,-2295,-2294,-2368,-2368,-2326,-2324,- 2320,-2303,-2310,-2325,-2325,-2310,-2291,-2309,-2328,-2364,-2364,-2284,-2354,-2376,-2311,-2335,-2342, -2342,-2336,-2322,-2317,-2276,-2385,-2362,-2268,-2107,-2363,-2307,-2292,-2296,-2356,-2288,-2288,-2355 ,-2372,-2303,-2348,-2279,-2346,-2346,-2238,-2320,-2323,-2280,-2318,-2345,-2345,-2318,-2323,-2316,- 2316,-2307,-2324,-2324,-2376,-2251,-2347,-2375,-2300,-2300,-2399,-2318,-2283,-2375,-2356,-2316,-2316, -2260,-2418,-2341,-2347,-2327,-2327,-2308,-2358,-2335,-2344,-2350,-2264,-2264,-2377,-2328,-2323,-2347 ,-2351,-2352,-2352,-2290,-2369,-2307,-2333,-2306,-2540,-2284,-2343,-2353,-2283,-2301,-2310,-2548,- 2292,-2358,-2321,-2275,-2290,-2267,-2267,-2378,-2330,-2319,-2356,-2315,-2337,-2337,-2360,-2385,-2358, -2 320,-2304,-2290,-2290,-2329,-2362,-2318,-2335,-2303,-2303,-2358,-2305,-2293,-2288,-2244,-2255,-2255, -2339,-2337,-2375,-2296,-2243,-2053,-2309,-2346,-2410,-2333,-2287,-2316,-2316,-2362,-2331,-2291,-2350 ,-2394,-2323,-2323,-2377,-2313,-2324,-2327,-2322,-2322,-2258,-2325,-2356,-2337,-2376,-2351,-2351,- 2286,-2255,-2347,-2376,-2359,-2343,-2343,-2389,-2303,-2302,-2384,-2298,-2298,-2313,-2344,-2323,-2273, -2295,-2316,-2316,-2369,-2343,-2287,-2280,-2348,-2544,-2288,-2279,-2380,-2349,-2241,-2344,-2344,-2366 ,-2363,-2350,-2303,-2335,-2340,-2340,-2309,-2348,-2304,-2354,-2644,-2461,-2404,-2404,-2170,-2374,- 2299,-2268,-2334,-2334,-2364,-2288,-2337,-2329,-2401,-2241,-2241,-2247,-2339,-2395,-2312,-2369,-2526, -2270,-2298,-2318,-2285,-2254,-2316,-2349,-2349,-2334,-2274,-2297,-2352,-2321,-2321,-2293,-2358,-2289 ,-2341,-2329,-2336,-2336,-2360,-2311,-2345,-2344,-2321,-2321,-2333,-2285,-2284,-2325,-2360,-2280,- 2280,-2303,-2343,-2237,-2317,-2373,-2535,-2279,-2309,-2287,-2308,-2289,-2334,-2334,-2293,-2330,-2315, -2271,-2300,-2346,-2346,-2336,-2287,-2308,-2320,-2315,-2347,-2347,-2302,-2283,-2267,-2312,-2288,-2096 ,-2352,-2298,-2252,-2290,-2341,-2328,-2290,-2290,-2265,-2242,-2326,-2262,-2300,-2074,-2330,-2322,- 2382,-2304,-2316,-2337,-2337,-2209,-2358,-2339,-2285,-2319,-2280,-2280,-2327,-2299,-2329,-2331,-2317, -2347,-2347,-2343,-2334,-2255,-2295,-2295,-2295,-2315,-2343,-2365,-2366,-2326,-2542,-2286,-2331,-2343 ,-2370,-2317,-2291,-2270,-2270,-2343,-2261,-2335,-2343,-2297,-2297,-2359,-2290,-2293,-2350,-2314,- 2315,-2315,-2388,-2357,-2335,-2382,-2235,-2052,-2308,-2379,-2340,-2313,-2260,-2301,-2301,-2225,-2323, -2286,-2383,-2370,-2504,-2248,-2274,-2317,-2282,-2285,-2226,-2145,-2401,-2341,-2361,-2422,-2336,-2288 ,-2288,-2386,-2357,-2294,-2310,-2295,-2117,-2373,-2260,-2274,-2289,-2379,-2313,-2313,-2256,-2300,- 2344,-2293,-2296,-2312,-2312,-2363,-2328,-2347,-2351,-2294,-2092,-2348,-2381,-2347,-2229,-2275,-2328, -2328,-2379,-2256,-2362,-2331,-2347,-2360,-2360,-2279,-2269,-2332,-2374

Y 轴

-2485,-2478,-2511,-2486,-2486,-2475,-2490,-2517,-2482,-2505,-2457,-2457,-2468,-2471,-2475,-2498 ,-2513,-2489,-2531,-2531,-2509,-2435,-2473,-2493,-2486,-2428,-2428,-2485,-2473,-2513,-2459,-2514,- 2510,-2456,-2456,-2519,-2511,-2569,-2466,-2484,-2524,-2524,-2475,-2468,-2518,-2469,-2443,-2513,-2513, -2494,-2460,-2503,-2466,-2497,-2497,-2460,-2472,-2528,-2473,-2479,-2480,-2480,-2448,-2425,-2447,-2523 ,-2552,-2447,-2447,-2513,-2532,-2480,-2459,-2511,-2511,-2493,-2472,-2447,-2477,-2542,-2434,-2434,- 2472,-2484,-2477,-2503,-2472,-2472,-2478,-2519,-2501,-2449,-2453,-2477,-2477,-2491,-2471,-2480,-2507, -2473,-2449,-2449,-2514,-2457,-2473,-2513,-2501,-2501,-2437,-2520,-2479,-2481,-2468,-2497,-2497,-2523 ,-2488,-2454,-2525,-2470,-2470,-2448,-2487,-2484,-2477,-2460,-2476,-2476,-2515,-2467,-2443,-2449,- 2480,-2480,-2451,-2459,-2470,-2477,-2489,-2463,-2463,-2492,-2500,-2469,-2491,-2475,-2528,-2528,-2438, -2442,-2506,-2499,-2489,-2461,-2486,-2485,-2483,-2492,-2523,-2453,-2453,-2484,-2458,-2509,-2484,-2497 ,- 2433,-2433,-2515,-2479,-2507,-2519,-2485,-2483,-2500,-2500,-2477,-2510,-2506,-2488,-2480,-2497,-2497, -2488,-2464,-2452,-2496,-2487,-2487,-2512,-2464,-2489,-2484,-2496,-2477,-2477,-2467,-2478,-2500,-2452 ,-2534,-2490,-2490,-2499,-2485,-2463,-2457,-2501,-2501,-2471,-2448,-2524,-2480,-2473,-2503,-2503,- 2481,-2525,-2497,-2449,-2511,-2483,-2483,-2513,-2459,-2501,-2462,-2489,-2489,-2496,-2494,-2468,-2453, -2464,-2537,-2537,-2484,-2520,-2442,-2514,-2505,-2463,-2517,-2523,-2523,-2471,-2454,-2444,-2442,-2519 ,-2519,-2521,-2480,-2457,-2455,-2492,-2471,-2471,-2454,-2493,-2510,-2480,-2458,-2489,-2489,-2485,- 2492,-2487,-2459,-2466,-2466,-2519,-2446,-2500,-2527,-2459,-2489,-2489,-2479,-2469,-2484,-2482,-2477, -2480,-2480,-2479,-2494,-2514,-2485,-2474,-2474,-2493,-2505,-2495,-2471,-2496,-2501,-2501,-2438,-2495 ,-2469,-2488,-2481,-2521,-2521,-2508,-2490,-2465,-2480,-2455,-2524,-2524,-2499,-2502,-2481,-2472,- 2490,-2490,-2432,-2494,-2543,-2478,-2462,-2487,-2487,-2525,-2491,-2500,-2491,-2449,-2490,-2490,-2459 ,-2506,-2476,-2487,-2493,-2480,-2480,-2498,-2472,-2506,-2473,-2457,-2457,-2503,-2515,-2479,-2486,- 2482,-2521,-2521,-2491,-2509,-2505,-2496,-2483,-2483,-2453,-2495,-2519,-2440,-2548,-2482,-2482,-2427, -2532,-2495,-2466,-2436,-2443,-2443,-2500,-2444,-2458,-2455,-2489,-2489,-2510,-2497,-2494,-2510,-2519 ,-2485,-2485,-2458,-2509,-2466,-2519,-2483,-2523,-2523,-2482,-2511,-2492,-2463,-2470,-2470,-2494,- 2481,-2487,-2495,-2493,-2513,-2513,-2490,-2495,-2505,-2476,-2470,-2470,-2480,-2502,-2479,-2420,-2470, -2479,-2479,-2491,-2530,-2512,-2503,-2538,-2446,-2446,-2447,-2562,1029,-2413,-2366,-2607,-2607,-2426, -2440,-2552,-2446,-2503,-2517,-2517,-2428,-2496,-2462,-2489,-2525,-2513,-2513,-2456,-2476,-2500,-2535 ,-2524,-2453,-2453,-2534,-2493,-2480,-2487,-2437,-2437,-2470,-2514,-2465,-2532,-2511,-2448,-2448,- 2479,-2532,-2519,-2507,-2463,-2510,-2510,-2459,-2461,-2483,-2488,-2520,-2520,-2485,-2455,-2491,-2492, -2445,-2458,-2458,-2477,-2489,-2492,-2478,-2506,-2501,-2501,-2489,-2485,-2481,-2480,-2486,-2486,-247 1,-2453,-2505,-2473,-2478,-2472,-2472,-2493,-2487,-2491,-2479,-2492,-2518,-2518,-2520,-2508,-2503, -2465,-2501,-2488,-2488,-2485,-4231,-2508,-2483,-2376,-2474,-2474,-2453,-2503,-2498,-2455,-2495,-2495 ,-2495,-2517,-2455,-2470,-2441,-2478,-2478,-2470,-2500,-2484,-2473,-2418,-2477,-2477,-2512,-2459,- 2503,-2473,-2464,-2476,-2476,-2480,-2497,-2499,-2501,-2492,-2492,-2443,-2478,-2500,-2476,-2486,-2529, -2529,-2455,-2521,-2463,-2482,-2460,-2460,-2510,-2506,-2470,-2484,-2473,-2441,-2441,-2500,-2489,-2502 ,-2496,-2415,-2504,-2504,-2518,-2417,-2500,-2498,-2460,-2501,-2501,-2498,-2460,-2449,-2465,-2499,- 2499,-2496,-2479,-2521,-2513,-2513,-2479,-2479,-2480,-2546,-2514,-2502,-2479,-2479,-2446,-2484,-2531, -2524,-2533,-2489,-2489,-2486,-2444,-2477,-2462,-2474,-2513,-2513,-2485,-2475,-2463,-2438,-2477,-2477 ,-2470,-2481,-2467,-2497,-2454,-2475,-2475,-2507,-2477,-2499,-2464,-2501,-2501,-2523,-2502,-2452,- 2497,-2488,-2456,-2456,-2487,-2504,-2490,-2472,-2547,-2458,-2458,-2469,-2429

Z 轴：

16068,16050,16097,16178,16142,16294,16038,16070,16184,16207,16125,16174,16246,16246,16161,16117,16132,16128,16104,160471,1023 ，16174,15911160111611,16111611,161116181618161816181618161816161618161816181618161618161618161816161616161816161618161816111601616181618161116015 ，15896,161811618,1611161116111611161116181618161816816181618161816181618161816181618 ，16090,1611161010161011,1611,1611161011,1611161811618,1611161816181618161816181618 ，16112,1611160111618116181161811618116011618160811608116081160811601516816811608116081160811608116081168116015 ，16070,1601116101116111611,161116111610116101016107598716181619807516161616175 ,16111,16111,16157,16040,15968,16174,16213,16106,16052,16161,16048,16142,16142,16147,16030,16102,16079,1 6153,16178,16129,16179,16179,16103,16074,16078,16078,16164,16182,16163,16164,16182,16163,16105,16046,16046,16160,16068,16060,16074,16125,16131,16131， 16160,16048,160150,16040,16040,16139,1604016048,16180,1601804816016016048771601604816048 16105,16105,16161116076160,16161116076,1610,161253,16053,16151,16129,60.161,611,611,1616,16111616161,6016.16161,605,1611,60.161,605,1611,60.161,605,1611,611,1616,616,611,611,1616,6114,116886,1611,6114,15886,16142,16199,16181， 16064,16090,1611,16177,16112,16115,1588,6112,16115,1588,6112,1611,61618,16144,16135,16226,16110,1616226,16110,16121,16053,15916， 16172,16075,16181,16119,16181,16121,159771,1611,15977.1597.16141,16155,16207,16141,1615,60207,16069,16107,16107,16114,16083,16102,16008,16071， 16119,16119101610861618,16159,160801619,16159,16080561618,16159,160161919191919191981618,16154,16016181618,16154,161618,16154,1618618,16154,1615,615 ,16159,1618,1615,615,1615 ,1618,1615,618,1615 .1618,16154,16159,16146,16146,160.16146,16146,16070,16176， 16225,16088,16118,16118,16093,16289,16118,16091,16141,16207,16207,16173,16151,16048,16195,16141,16202 ，16202,1611 ,1611,16111610,1611161116114111611411161016181411618198116198198198198148 ，16055,16010101016116011601160116011601816016016016160181601816088 ，16119,1611710101011010,1611710,1611710,161171010101010161010101010160161016016181981718160 ，16121,1611,1611,1611161181161811618161816181618161816181618161816181681816181618161816181618 ，16159,1611,1611111171111611,1611,16111611,1611116111611116181161818181818181818 ，16131,16161016101010161010161010161010161010161010161016016016016016016181618 ,16065,16137,16165,16342,16086,16050,16156,16087,16107,16169,16169,16178,16061,16091,16061,16260,161 33,16133,16117,16174,16108,16164,16162,16311,16055,16219,16143,16127,16105,16121,15902,16158,16194,16044,16178,160207,16089,65,693 16131,16113,16163,16352,16096,16080,16057,16111,16146,16134,16134,16162,16092,16139,16120,16144,16028,16028,16142,16171,16066,16041,16154,16366,16110， 16110,16128,1610 ,16154,16186,1611,60.1605 ,16141,16073,16206,16141,16073,16206,16141,16073,16206,16141,16073,16123,16158,16159,16141,16159,16141,16159,16141,16159,16197,16135， 16135,16119,16128,1615.16128,16153,16129,1610,16180,16157,16207,16126,16158,16066126,16158,16066,16158,16066,16066,16102,161777,16158,16107,161777,16158,16102,161777,16104,16202， 16104,16159,16159,16115,161271,16122,1616.16085,16105,16105,16187,16056,160187,16056,160187,16056,160187,160561601,6187,16056,16010,16166,60,6151,161666,16166,16124,16088， 16166,16123,15991,15944,16093,16106,16057,16167,16021,1616,6167,161701,1616,6167,161701,1616,6167,161701,1616,6167,161701,16162,16144,611,16162,16144,16266,16266,16115， 16135,16159,16021,16240,16162,16162,16004,16154,16182,16073,16129,16299

【问题讨论】：

添加数据表或更多喜欢阅读它。有关输出数据的信息应包含在其中。
嗨，我在这里发送数据表st.com/content/ccc/resource/technical/document/datasheet/1c/9e/…
为了开发一个算法，你需要了解你想要完成什么。我假设您想通过检测其振动的某些特征的变化来确定阀门即将发生故障。振动是一个非常复杂的话题；您关心哪个方面（即幅度、峰值频率、频谱、稳态或瞬态）？你什么时候在乎？（在阀门位置，阀门移动期间，在某些流量下）？您是否需要考虑其他振动源（多个阀门、移动车辆、其他移动部件、人）？

标签： accelerometer sensors stm32

【解决方案1】：

参考是相对于芯片位置的。请参阅数据表。

不要忘记重力是加速度，所以当加速度计静止时，输出矢量指向下方（在地球参考中）。您可以存储一个初始值（在最佳情况下是多个点的平均值），然后从您的数据点中减去该值。

调试此问题的最佳方法是实时绘制值。

【讨论】：