詳細介紹
7600B1高精度微型加速度傳感器
深圳市漢斯福特科技有限公司
楊工
:
手機:
傳真:
: 1138493826
公司地址:龍華新區(qū)大浪街道大浪社區(qū)偉達工業(yè)園A棟2樓
公司:www.huntsort。。com
概述
The Dytran 7600B1 is a high precision variable capacitance (VC) accelerometer, designed to be used as a drop-in replacement for piezoresistive units in new or existing zero-to-medium frequency instrumentation applications.
壓電式加速度傳感器又稱壓電加速度計。它也屬于慣性式傳感器。壓電式加速度傳感器的原理是利用壓電陶瓷或石英晶體的壓電效應(yīng),在加速度計受振時,質(zhì)量塊加在壓電元件上的力也隨之變化。當被測振動頻率遠低于加速度計的固有頻率時,則力的變化與被測加速度成正比。
Available with a 5g range, the Dytran model 7600B1 incorporates a MEMS capacitive sensing element and an advanced ASIC to simulate piezoresistive bridge operation, as well as an integrated VC accelerometer chip with high drive, low impedance buffering. Units respond to both DC and AC acceleration. On-board regulation minimizes supply voltage variation effects, making them relatively insensitive to temperature changes and thermal gradients. Sensors are hermetically sealed for reliable operation in high humidity and dirty environments, and feature a custom integrated circuit amplifier and differential output stages, with a 4-pin M4.5 x 0.35 radial connector, and easy mounting via two 4-40 screws.
電容式加速度傳感器是基于電容原理的極距變化型的電容傳感器。電容式加速度傳感器/電容式加速度計是對比較通用的加速度傳感器。在某些領(lǐng)域*,如安全氣囊,手機移動設(shè)備等。電容式加速度傳感器/電容式加速度計采用了微機電系統(tǒng)(MEMS)工藝,在大量生產(chǎn)時變得經(jīng)濟,從而保證了較低的成本。
The Dytran model 7600B1 accelerometer uses the same power supply as piezoresistive and strain gage sensors, allowing them to operate as stand-alone differential output accelerometers or in place of piezoresistive bridge-type accelerometers.
伺服式加速度傳感器是一種閉環(huán)測試系統(tǒng),具有動態(tài)性 能好、動態(tài)范圍大和線性度好等特點。其工作原理,傳感器的振動系統(tǒng)由 "m-k”系統(tǒng)組成,與一般加速度計相同,但質(zhì)量m上還接著一個電磁線圈,當基座上有 加速度輸入時,質(zhì)量塊偏離平衡位置,該位移大小由位移傳感器檢測出來,經(jīng)伺服放大器 放大后轉(zhuǎn)換為電流輸出,該電流流過電磁線圈,在*磁鐵的磁場中產(chǎn)生電磁恢復(fù)力,力圖使質(zhì)量塊保持在儀表殼體中原來的平衡位置上,所以伺服加速度傳感器在閉環(huán)狀態(tài)下工作。由于有反饋作用,增強了抗的能力,提高測量精度,擴大了測量范圍,伺服加速度 測量技術(shù)廣泛地應(yīng)用于慣性導(dǎo)航和慣性制導(dǎo)系統(tǒng)中,在高精度的振動測量和標定中也有應(yīng)用。
特性
1. 100 mV/g sensitivity
2. 5g range
3. 0 to 600 Hz frequency range (3dB)
4. 4-pin M4.5 x 0.35 radial connector
5. Mounting via two 4-40 screws
6. 3.6 grams
7. Titanium
8. Hermetic
9. Differential output
10. MEMS technology
11. Same power supply requirements as strain gage sensors
12. DC response
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。
應(yīng)用
1. Airbag testing
2. Crash testing
3. Flight testing
4. Ride quality
5. Seismic monitoring
地震檢波器是用于地質(zhì)勘探和工程測量的傳感器,是一種將地面振動轉(zhuǎn)變?yōu)殡娦盘柕膫鞲衅?/span>,能把地震波引起的地面震動轉(zhuǎn)換成電信號,經(jīng)過模/數(shù)轉(zhuǎn)換器轉(zhuǎn)換成二進制數(shù)據(jù)、進行數(shù)據(jù)組織、存儲、運算處理。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)用在手機、筆記本電腦、步程計和運動檢測等。
參數(shù)
Weight, Max 0.1 oz 3.6 grams
Size Length x Width x Height .80 x .56 x .23 Inches 20.3 x 14.2 x 5.8 mm
Connector Type 4-PIN, M4.5 x 0.35 THD 4-PIN, M4.5 x 0.35 THD
Mounting 4-40 X 7/16 LG SHCS 4-40 X 7/16 LG SHCS Notes:
Material Ti-6AI-4V Ti-6AI-4V
Input Range ±5 g ±49 m/s2 [4] Bias voltage equal to (+ v - (-v)) / 2
Frequency Response (±3dB) 0-600 Hz 0-600 Hz [5] Mating cable 6895A
Sensitivity Differential, ±5% [1] 100 mV/g 10.2 mV/m/s2
Output Noise, Differential ,Typ 7 μ g rms/√ Hz 69 μ m/s2 /√ Hz
Non-Linearity, Max [2] 0.5 % F.S 0.5 % F.S
Sensitivity Change with Excitation Voltage (6-22 Volts) 0.3 % 0.3 %
Cross Axis Sensitivity < 3 % < 3 %
Zero Measurand Output ±50 mV ±50 mV
Maximum Mechanical Shock (0.1 ms) 2000 gpk ±19620 m/s2 peak
Bias Temperature Shift ,Max [3] 111 (ppm of span)/°F 200 (ppm of span)/°C
Sensitivity Temperature Shift 277 ppm/°F 500 ppm/°C
Operating Temperature Range -40 to +248 °F -40 to +120 °C
Seal Hermetic Hermetic
Output Common Mode Voltage ± VDC [4] [4]
Output Impedence,Nom 1225 ? 1225 ?
Operating Voltage ±3 to ±11 VDC ±3 to ±11 VDC
Operating Current, Max 13 mA Dc 13 mA Dc
Change in Operating Current to Excitation Voltage 0.25 mA/V 0.25 mA/V
配件
Supplied Accessories: (2) model 6743 mounting washers, (2) model 6746 mounting screws (4-40)
Recommended Accessories: model 6749 triaxial mounting block
Compatible Cables: 6895A, 6948B, 6949A
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。
訂貨型號
7600B1 ±5 0-600 100 2000 7
7600B2 ±10 0-1000 50 5000 10
7600B3 ±25 0-1500 20 5000 25
7600B4 ±50 0-2000 10 5000 50
7600B5 ±100 0-2500 5 5000 100
7600B6 ±200 0-3000 2.5 5000 200