Laplace小波相关滤波法的改进.pdf

在 Laplace 小波相关滤波法的基础上，提出了两种改进方法，扩大了原方法的适用范围，提高了原方法的模态参 数估计精度。

阻抗管吸隔声测试 操作手册.pdf

当声波从一种媒质入射到声学特性不同的另一种媒质时，在两种媒质的分界面处将发生 反射，使入射声波的一部分能量返回第一种媒质。在斜入射时，反射角 r  与入射角 i相等。 在反射点处，反射波声压 pr 与入射波声压 pi 之比称为反射系数 r ，即 r p p = / r i

阻抗管 PPT_MaterialTesting.pdf

Tube dimensions determine frequency range • Example: 50 - 5700 Hz • The propagating wave in the tube is the plane wave, only in one direction. Its wave equation can be simply formulated

03 声学相机 HD Cam tutorial - engine.pdf

The High Definition Acoustic Camera (‘HD Cam’) is a tool for rapidly identifying sound sources in stationary and time-varying conditions. The localization is nearly instantaneous, and is visualized by drawing ‘heat maps’ on top of the camera image. In this tutorial we will learn how to set up a measurement with the HD Cam

01 声学相机 Training HD CAM theory.pdf

Combines three techniques in one tool  Typical 36 or 54 microphones  Wide angle camera (for pictures close to object)  Real-time results “preview”  PC or touchscreen operation  Interactive analysis  Animated reporting

DYTRAN 加速度 7531A2_ds.pdf

531A1-XX !29 420 mVlg 7531AZ-X 139 - 300 mV/g - 753143-XX t59 174 mYIg 7531A4-XX t 169 57 mV/g 753145-XX t200g 6.5 mV/g

DYTRAN 加速度 7700A2_ds.pdf

750041 G 13283 02t20t17 2s 7500p.2 G 1 3283 02t20t17 5s 750043 G 13283 02t20t17 10s 750044 G 13283 02t20t17 25s 750045 G 13283 02t20t17 50s 750046 G 13283 02t20t17 1 00s 750047 G 13283 02t20t17 200s 750048 G 13283 02t20t17 400s

DYTRAN 加速度 7500A3_ds.pdf

750041 G 13283 02t20t17 2s 7500p.2 G 1 3283 02t20t17 5s 750043 G 13283 02t20t17 10s 750044 G 13283 02t20t17 25s 750045 G 13283 02t20t17 50s 750046 G 13283 02t20t17 1 00s 750047 G 13283 02t20t17 200s 750048 G 13283 02t20t17 400s

BK 3160-bp2331-20111019.pdf

A stand-alone system with two or four input channels and two output channels, a building block of a high-density 60+ channel system, or both, Type 3160 is available in four variants: • Type 3160-A-022 Generator, 2/2-ch. Input/Output Module LAN-XI 51.2 kHz (Mic, CCLD, V) • Type 3160-A-042 Generator, 4/2-ch. Input/Output Module LAN-XI 51.2 kHz (Mic, CCLD, V) • Type 3160-B-042 Generator, 2/2-ch. Input/Output Module LAN-XI 51.2 kHz (CCLD, V) • Type 3160-B-022 Generator, 4/2-ch. Input/Output Module LAN-XI 51.2 kHz (CCLD, V)

BK 加速度 4570-4575.pdf

The DC Response Accelerometers are designed to measure low-frequency vibration down to DC. The gasdamped sensing element offers a wide dynamic range and very stable frequency response even after subjection to high shock levels. The accelerometer has built- in conditioning, where the sensing element and electronics are shielded, sealed and insulated from the housing. D-versions are available offering high thermal stability from –55 to +121°C