- 您现在的位置：买卖IC网 > Datasheet目录532 > VR001 (Mide Technology Corporation)VIBRATION DATA LOGGER Datasheet资料下载
参数资料
| 型号： | VR001 |
| 厂商： | Mide Technology Corporation |
| 文件页数： | 11/15页 |
| 文件大小： | 0K |
| 描述： | VIBRATION DATA LOGGER |
| 产品培训模块： | Volture EHE004 Piezoelectric Energy Harvesting Conditioning Circuit |
| 特色产品： | Slam Stick? Vibration Recorder |
| 标准包装： | 1 |
| 系列： | Slam Stick™, Volture™ |
| 附件类型： | 振动特性鉴定设备 |
| 适用于相关产品： | Volture? 振动能量收集器 |
| 配用： | V25W-ND - PIEZOELECTRIC ENERGY HARVESTER V20W-ND - PIEZOELECTRIC ENERGY HARVESTER V21BL-ND - PIEZOELECTRIC ENERGY HARVESTER V21B-ND - PIEZOELECTRIC ENERGY HARVESTER V22BL-ND - PIEZOELECTRIC ENERGY HARVESTER V22B-ND - PIEZOELECTRIC ENERGY HARVESTER |
APPLICATIONS INFORMATION
Aliasing
Any complex waveform, such as Slam Stick vibration
traces, can be expressed as the sum of sinusoidal
frequency components.
Per Shannon’s Sampling theorem, in any sampled data
such as that produced by the Slam Stick, the maximum
frequency that can be reliably identified is limited to half
the sampling frequency. This limiting frequency is
known as the Nyquist frequency, critical frequency or
folding frequency. Any frequency content at or above
Sampling devices such as the Slam Stick include a
lowpass filter at the folding frequency to minimize the
appearance of such aliases (see the Frequency
Response Graph in performance plot section);
however, no filter can completely eliminate unwanted
signals, so a very strong signal above the folding
frequency may still produce a visible alias. The best
course of action is to recognize that this can occur and
take steps to identify aliasing if it occurs. For example,
if the frequency content of the system is known to be
(or found to be) dependent on an external parameter
Figure 1: Aliasing occurs when the real signal frequency exceeds the Nyquist frequency,
resulting in there being not enough data points to correctly reconstruct the signal.
this limiting frequency will produce an alias, or false
signal appearing at a lower frequency. This alias will
appear as the reflection of the high frequency signal
over the folding frequency. For example, if the folding
frequency is 1600Hz (half of the Slam Stick’s 3200 Hz
sampling frequency), an 1800Hz signal would appear
as an alias at 1400Hz, and a 1900Hz signal would
appear at 1200Hz, etc. Figure 1 shows an example of
a real signal exceeding the folding frequency, and the
apparent (aliased) signal that results.
such as engine RPM, observing the response as this
parameter is varied can help in identifying spurious
signals.
Commercial Aircraft Vibration
Characterization
The following shows a brief example of using the Slam
Stick data to identify specific features in a recording.
This example uses the included MATLAB script for data
visualization.
REVISION N0. 001
REVISION DATE: 08-24-2010
www.mide.com
11
相关PDF资料 |
PDF描述 |
|---|---|
| VSLY3850 | IR EMITTER 850NM HIGH SPEED |
| VSLY5850 | IR EMITTER 850NM HIGH SPEED DIP |
| VSMY2850G | IR EMITTER 850NM HIGH SPEED SMD |
| VSMY7850X01-GS08 | IR EMITTER 850NM HIGH SPEED SMD |
| VSOP38336 | IC SIGNAL CONDITIONING 36KHZ QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| VR02GC223MAA | 制造商:AVX 功能描述:RMX322X2000 '93 .4LS S5J1C |
| VR05-1516LB | 功能描述:CONV DC/DC 15V OUT 167MA 5W RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:VR-LB 标准包装:15 系列:Econoline REC3-DR 类型:隔离 输出数:2 电压 - 输入（最小）:4.5V 电压 - 输入（最大）:5.5V Voltage - Output 1:5V Voltage - Output 2:-5V Voltage - Output 3:- 电流 - 输出（最大）:300mA，300mA 电源（瓦） - 制造商系列:3W 电压 - 隔离:1kV（1000V） 特点:- 安装类型:表面贴装 封装/外壳:24-DIP SMD 模块（18 引线） 尺寸/尺寸:1.26" L x 0.80" W x 0.44" H（32.0mm x 20.3mm x 11.2mm） 包装:管件 工作温度:-40°C ~ 80°C 效率:75% 电源（瓦特）- 最大:3W 其它名称:10005457 |
| VR05-FW | 制造商:Custom Connector Corporation 功能描述: |
| VR05-LFW | 制造商:Custom Connector Corporation 功能描述:Socket, Relay, Automotive Relay, 5 Pin Automotive, Crimp, Thermoplastic |
| VR05-PCB | 制造商:Custom Connector Corporation 功能描述:Socket, Relay, Automotive Relay, 5 Pin Automotive, PC Board, Thermoplastic 制造商:Song Chuan Precision Company 功能描述:VR Series 5 Pin Socket PCB Micro Automotive Relay |
发布紧急采购，3分钟左右您将得到回复。