通過測量由于重力引起的加速度，你可以計算出設(shè)備相對于水平面的傾斜角度。通過分析動態(tài)加速度，你可以分析出設(shè)備移動的方式。但是剛開始的時候，你會發(fā)現(xiàn)光測量傾角和加速度好像不是很有用。但是，工程師們已經(jīng)想出了很多方法獲得更多的有用的信息。

The Dytran 7701  Extended Low Frequency (ELF?) accelerometer combines both a piezoelectric and a variable capacitance MEMS element, combined as a single output, to create the widest frequency response bandwidth in the industry, from DC (0 Hz) to 10 kHz. Unique ELF? technology combines the most desirable features of piezoelectric sensors (excellent high frequency response) with those of variable capacitance accelerometers (true DC response), eliminating the need for using two different technologies to cover the bandwidth of interest in an application. Slow rotation speeds in the sub-1Hz range and gear mesh frequencies up to 10 kHz can now be made using the same sensor. The Dytran model 7701 ELF? accelerometers are ideal for flight testing, ride quality, Health & Usage Monitoring Systems (HUMS), wind turbine measurements, machinery monitoring, and the widest range of structural response applications.

地震檢波器是用于地質(zhì)勘探和工程測量的專用傳感器，是一種將地面振動轉(zhuǎn)變?yōu)殡娦盘柕膫鞲衅鳎馨训卣鸩ㄒ鸬牡孛嬲饎愚D(zhuǎn)換成電信號，經(jīng)過模/數(shù)轉(zhuǎn)換器轉(zhuǎn)換成二進(jìn)制數(shù)據(jù)、進(jìn)行數(shù)據(jù)組織、存儲、運(yùn)算處理。加速度傳感器是一種能夠測量加速力的電子設(shè)備，典型應(yīng)用在、筆記本電腦、步程計和運(yùn)動檢測等。

ELF? accelerometer model 7701 is offered with a 200g range and operates on 5-28 VDC power at 7-9 mA of current. Signal/power is handled via a 4-pin M4.5 x 0.35 radial connector. The lightweight titanium housing weighs just 15 grams, and is hermetically sealed for use in rugged environments, from test tracks to outer space. The ELF? incorporates a 10-32 tapped mounting hole and a hex bas

在汽車工業(yè)高速發(fā)展的現(xiàn)代，汽車成為了人們出行主要的交通工具之一，但是因交通事故的傷亡數(shù)量也十分巨大。在信息化的現(xiàn)代利用高科技去挽救人的生命將會是重大研究的主題之一，基于加速度的車禍報警系統(tǒng)正是懷著這種設(shè)計理念，相信這種系統(tǒng)的推廣，會給汽車行業(yè)帶來更多的安全。

美國DT 7701低頻加速度傳感器
特性

1. 10 mV/g sensitivity

2. 200g range

3. 0 to 10,000 Hz frequency range (±10%)

4. 4-pin M4.5 x 0.35 radial connector

5. 10-32 tapped hole

6. 15 grams

7. Titanium

8. Hermetic

9. Hybrid design

10. Dual mode technology: incorporates AC and DC into one sensor

目前對導(dǎo)線舞動監(jiān)測多采用視頻圖像采集和運(yùn)動加速度測量兩種主要技術(shù)方案。前者在野外高溫、高濕、嚴(yán)寒、濃霧、沙塵等天氣條件下，不僅對視頻設(shè)備的可靠性、穩(wěn)定性要求很高，而且拍攝的視頻圖像的效果也會受到影響，在實際使用中只能作為輔助監(jiān)測手段，無法定量分析導(dǎo)線運(yùn)動參數(shù)；而采用加速度傳感器監(jiān)測導(dǎo)線舞動情況，雖可定量分析輸電導(dǎo)線某一點(diǎn)上下振動和左右擺動的情況，但只能測出導(dǎo)線直線運(yùn)動的振幅和頻率，而對于復(fù)雜的圓周運(yùn)動，則無法準(zhǔn)確測量。所以我們必須加快加速度傳感器的發(fā)展來適應(yīng)諸如此類環(huán)境下進(jìn)行應(yīng)用。

美國DT 7701低頻加速度傳感器
應(yīng)用

1. Flight testing

2. Health & Usage Monitoring Systems (HUMS)

3. Machinery monitoring

4. Ride quality

5. Wind turbine measurements

6. Wide range of structural response applications