Main parameters of impact machine

work platform

500×500 mm

Load 15KG

Peak acceleration half sine wave: 20-600 G

Pulse duration half sine: 1-30ms

Equipment size 1300 × 1450 × 2550mm

The total weight of the equipment is 1300 kg

measurement system

Input channel 2

Sampling frequency 192KHz

Voltage range -10V -+10V coupling mode

AC/DC/ICP pulse duration

0.5-100ms acceleration

5000G communication interface

USB 2.0 supports standards

ISO,MIL-STD-810， User defined standards

Operating System Microsoft Win7/10 System Acceleration Sensor

Output method: Charge based

Sensitivity 3.93pC/g

Frequency range 0.5-12KHz

Acceleration range ± 2500G

Working environment -40~+160 ℃

Other instructions

Power supply AC 3-phase 380V ± 10% 5KVA

Compressed air 0.5-0.8Mpa

Temperature RT~40 ℃

Humidity 25 ℃ ＜ 85RH%

Verification standards

JJG541-2005

3. Introduction to Equipment Features

3.1 Work Platform

Adopting high-strength imported aluminum alloy work platform

3.2 Height control for lifting and lowering

The elevated height is measured by a photoelectric encoder component installed on the base, which has high accuracy in measurement

Strong anti-interference ability and high reliability ensure the repeatability of impact.

3.3 Braking System

Adopting gas-liquid pressurization and strong friction holding brake to prevent secondary impact braking function can quickly and reliably brake, preventing secondary impact

rebound

3.4 Buffer System

In order to reduce the impact force of the impact testing machine on the ground, a self buffering system was designed for the impact testing machine, which consists of a large mass base

Composed of dampers and airbags. The vibration reduction system can reduce the impact force transmitted from the work platform to the ground and the impact waveform

It has a good high-frequency filtering effect, making the impulse waveform smoother.

3.5 Waveform Generator

Half sine wave: rubber pad

3.6 Safety devices

Emergency stop switch: cuts off the circuit in emergency situations such as forcibly disconnecting the contact fusion of the action mechanism, in compliance with

EN418 with

There are insurance institutions to prevent misoperation.

3.7 Introduction and Characteristics of Impact Measurement System

The impact measurement analysis control instrument is a high-quality dynamic measurement, dynamic analysis, and control system based on DSP structure.

3.7.1 High cost performance ratio and reliability

The hardware adopts modular and low-noise design technology, and the hardware circuits for control and measurement analysis functions are all placed in the interface box

In China, independent of the computer, USB2.0 is used to communicate between the interface box and the PC.

3.7.2 High measurement accuracy

Adopting high-performance floating-point DSP processing structure, 24 bit resolution ADC/DAC, combined with high-precision floating-point digital filtering

Wave and low-noise design technology.

Complete automatic safety detection and protection functions, high test safety, equipped with manual emergency interruption, impact table limit

Complete safety measures such as parameter settings and rationality ensure the safe operation of the experiment.

3.7.3 Diverse operating methods

Manual, semi-automatic, and fully automatic cyclic operation modes can be used.

3.7.4. Flexible and diverse input methods: charge ICP

The interface box is equipped with a charge amplifier, which can be directly connected to a charge type accelerometer; And built-in ICP constant current

The source can be directly connected to the ICP sensor.

3.7.5. Application software based on Win2000/NT/XP, easy to operate

Measurement and control are implemented by DSP, making PC software only responsible for user interaction and display, truly realizing Windows

The multi tasking mechanism and graphical interface make it easy for users to operate and display in various forms.

3.7.6. Automatically generate WORD test report

During and after the experiment, Microsoft Word test reports can be automatically or manually generated, and users can

Define report content.

3.7.7 Control Characteristics

Digital control of height, high precision, and good repeatability;

Automatic drop height calculation and control;

Power on self-test, automatically saving operation records;

Provide rebound control without secondary impact;

The system provides alarm function;

3.7.8 Characteristics of Testing System:

Compliant with MIL-STD-810, GJB-150-18-86, IEC68-2-27 standards, DELL standards

Range: 0.1V, 1V, 10V;

The sampling frequency can reach 1MHz

Signal conditioning: analog filters and 160Db/Octave digital anti aliasing filters;

Measurement method: Multi frame waveform recording and playback;

Test acceleration 100000gn

Minimum test pulse width 0.1ms

Support internal and external triggering

Frame length: 512102420484096819216384;

Time domain analysis: shock wave automatic alignment, automatic tolerance band detection, peak acceleration, pulse width, velocity change, etc

testing;

Shock response spectrum analysis: logarithmic resolution 1/1, 1/3, 1/6, 1/12, 1/24 octave band analysis, adjusting impedance

Ni coefficient and Q (quality factor) value, independently adjust the lower limit, upper limit, and reference frequency;

Automatically generate test reports

3.7.9 Analysis Function:

Transient capture of shock waveform

Transient capture helps you obtain single or multiple pulses, and the system automatically analyzes the peak value, pulse width, velocity change, head injury index (HIC), and other data of the impact pulse. It automatically matches the captured pulse waveform to the ideal waveform and compares the two

The deviation

Shock response spectrum analysis

The impact response spectrum analysis can evaluate the potential damage caused by impact and provide a basis for designing the impact resistance of products. The system performs SRS analysis on each shock pulse and compares the deviation between the actual SRS and the target SRS.