7500A2 高精度微型加速度传感器                 7500A2 高精度微型 振动传感器     ​

 7500A2 高精度微型加速度传感器                 7500A2 高精度微型 振动传感器​

深圳市汉斯福特科技有限公司

杨工

座机：0755-26552352

手机：13352927502

传真：0755-23343535

Q  Q: 1138493826

公司地址：龙华新区大浪街道大浪社区伟达工业园A栋2楼

 概述

The Dytran 7500A1 is a high precision single axis variable capacitance (VC) accelerometer available with a range of 2g. This high performance accelerometer combines an integrated VC accelerometer chip with high drive, low impedance buffer for low level acceleration measurements.

加速度传感器，包括由硅膜片、上盖、下盖，膜片处于上盖、下盖之间，键合在一起；一维或二维纳米材料、金电极和引线分布在膜片上，并采用压焊工艺引出导线；工业现场测振传感器，主要是压电式加速度传感器。其工作原理主要利于压电敏感元件的压电效应得到与振动或者压力成正比的电荷量或者电压量。目前工业现场典型采用IEPE型加速度传感器，及内置IC电路压电加速度传感器，传感器输出与振动量正正比的电压信号，例如：100mV/g (每个加速度单位输出100mV电压值。1g=9.81m/s-2)

Tailored for zero-to-medium frequency applications, the model 7500A1 features a low end frequency response of 0 Hz (DC) and upper frequency range of 400 Hz. This module contains a MEMS capacitive sensing element, a custom integrated circuit amplifier, low noise electronics and differential output, housed in a lightweight titanium, with a 4-pin 1/4-28 radial connector and easy mounting via two #4 or M3 screws. Units are hermetically sealed for reliable operation in high humidity and dirty environments.

并把一维或二维纳米材料连接成测量电桥；所述的信号处理电路包括：整流稳压电路、载波振荡器、测量电桥和交流载波放大器。加速度(力)信号作用在质量块上，使膜片发生应变，利用膜片上的纳米材料测出应变，利用全桥检测方法，将材料应变转化为电信号，再通过一系列的信号处理过程，从而得到被测加速度信号的数值。根据本发明的这种微型膜片式加速度传感器具有很高的灵敏度，并可进行批量生产。

特性

1.   1,000 mV/g sensitivity

2.   2g range

3.   0 to 400 Hz frequency range (3dB)

4.   4-pin 1/4-28 radial connector

5.   Mounting via two #4 or M3 screws

6.   13 grams

7.   Titanium

8.   Hermetic

9.   Ultra low noise

10.  Differential output

11.  Case isolated

12.  Operates from +9 to +32 VDC

13.  MEMS technology

14.  DC response

应用

1.   Airbag testing

2.   Crash testing

3.   Robotics

4.   Seismic monitoring

5.   Tilt measurement

参数

Weight, Max 0.46 oz 13 grams

Mounting Thru Holes 2 X Ø.13 2 X Ø.13

Material Titanium Alloy Titanium Alloy

Input Range ±2 g ±19.62 m/s2

Frequency Response (±3dB) 0 - 400 Hz 0 - 400 Hz

Sensitivity Differential, ±10%

Output Noise, Differential ,Typ 8 μ g rms/√ Hz 78 μ m/s2 /√ Hz

Non-Linearity, Max [3] 0.5 % Span 0.5 % Span

Transverse Sensitivity, Max 2 % 2 %

Scale Factor Calibration Error, Max 2 % 2 %

Maximum Mechanical Shock 2000 gpk 19620 m/s2 peak

Bias Temperature Shift ,Max [2] 111 (ppm of span)/°F 200 (ppm of span)/°C

Bias Calibration Error 4 % of span 4 % of span

Operating Temperature Range -67 to +257 °F -55 to +125 °C

Scale Factor Temperature Shift [2] -138.9 to +83.3 ppm/°F -250 to +150 ppm/°C

Seal Hermetic Hermetic

加速度传感器是一种能够测量加速力的电子设备。加速力就是当物体在加速过程中作用在物体上的力，就好比地球引力，也就是重力。加速力可以是个常量，比如g，也可以是变量。加速度计有两种：一种是角加速度计，是由陀螺仪（角速度传感器）的改进的。另一种就是线加速度计。

Output Common Mode Voltage, TYP 2.45 VDC 2.45 VDC

Output Impedence, Nom 1 Ω 1 Ω

Operating Voltage +9 to +32 VDC +9 to +32 VDC

Operating Current (AOP & AON open) 12 to 14 mA DC 12 to 14 mA DC

Power Supply Rejection Ratio >65 dB >65 dB

Ground Isolation >30 MΩ >30 MΩ

配件

Supplied Accessories: (2) model 6868 mounting screws (4-40)

Recommended Accessories: model 4010 signal conditioner, model 6717 triaxial mounting block

Compatible Cables: 6854A,6877A

订货型号

Model Input Range Frequency response  Sensitivity Differential  Max.Shock  Noise

      (g)          (Hz)                ±10% (mV/g)              (μg rms/√Hz)

7500A1  ± 2      0-400               1000                      2000         8

7500A2  ± 5      0-600               400                       2000         9

7500A3  ± 10     0-1000              200                       2000         10

± 25     0-1500              80                        2000         25

7500A5  ± 50     0-2000              40                        2000         50

7500A6  ± 100    0-2500              20                        2000        100

7500A7  ± 200    0-2500              10                        2000        200

7500A8  ± 400    0-2500              5                         2000        400

相关型号

7500M10

7500M11