1. Quotation

2. Detailed technical documents of the equipment

(1) General introduction of equipment

1. System name: Electric vibration test system

2. Model: QC-308VP

3. System configuration

Amplifier efficiency				＞90%
		The entire power amplifier has: grid overvoltage, grid undervoltage, grid phase loss, logic failure,
		Power module protection, power module temperature, output overcurrent, output overvoltage, drive power,
System protection		The protection circuit of the table body displacement, table body temperature, external interlock, etc., when any failure occurs, shut down Turn off the output, and sound and light alarm at the same time. In addition to the above protection, it also has an emergency stop device, etc.
		Good running protection function.
Dimensions (without packaging) (L×W×H)		1800mm×800mm×600mm
Power amplifier weight (without packaging) approximately			1000kg
	Vertical expansion table (model TB-0808)			Smoothing table (SC-0808)
Table size		800X800mm
Equivalent mass		约 45kg
Upper limit frequency		1000hz
Table top material	Magnesium aluminum alloy

(2) Introduction of equipment by item DC-600 1.1 Overview

1.1 Overview

The electric vibration table produced by Qicheng Instrument Equipment Co., Ltd. fully digests and absorbs the research, design and manufacturing of electric vibration tables at home and abroad.

The mature and developing advanced technology makes our company in the advanced level of electric vibration table technology at home and abroad.

	The dual magnetic circuit structure makes the magnetic field strength high and the magnetic leakage is small; the special degaussing structure can reduce the magnetic leakage of the mesa below 1mT.
l	The skeletonless moving coil with dynamic optimization design can improve the first-order resonance frequency while reducing the mass of moving parts, and broaden the electric The upper limit working frequency of the vibrating table.
	The built-in supporting air spring has large bearing capacity and good low frequency characteristics.
l	The trunnion adopts air spring vibration isolation and linear bearing guidance; when working under heavy load, the table body moves smoothly; when vertical vibration, it can be used without special purpose
	foundation。
The system has protections against overheating, overload, overcurrent, overvoltage, and overdisplacement. Grid overvoltage, undervoltage, and lack of equal protection. drive
Protection functions such as power supply protection, current limit protection, soft start setting, temperature protection, excitation open circuit, short circuit protection, and module failure protection.
	Matching with digital multi-function vibration controller can realize sine, random, classic shock, shock response spectrum, random + sine vibration, random Machine + random vibration and other environmental adaptability tests.
	The system has low requirements for grid voltage fluctuations (≤±10%).
	The system requires low grounding resistance (≤4Ω).
	The system has high reliability and is especially suitable for long-time working environment.

1.2.3 Moving Coil Production

The moving coil structure adopts a non-framework moving coil: because the moving coil frame is omitted, the moving system is light in weight, has a large no-load acceleration, and the moving coil has a first-order resonance

 The frequency is high, so that the waveform distortion of the whole frequency band is small, and the moving coil heat dissipation is good.

The driving coil adopts imported high-strength epoxy bonding, and adopts the new technology of hard mold shaping and vacuum curing, which greatly enhances the moving coil

 The strength increases the reliability and service life of the moving coil, and improves the first-order axial resonance frequency of the moving coil.

The winding of the moving coil adopts a two-in-one-out water flow structure which is beneficial to the cooling of the winding, which improves the cooling effect

1.2.4 Platform vibration isolation system: trunnion vibration isolation, using eight groups of imported air bags, good vibration isolation effect and easy adjustment. Vertical position around 3Hz Horizontal position around 2Hz

2. Digital switching power amplifier (model: KA-6)

2.1 Overview

This system uses a digital power amplifier with sinusoidal pulse width modulation technology. Its working principle is: use the high of MOSFET field effect tube

Frequency switching capability, the low-voltage signal input by the controller is amplified and restored to the original signal through a digital circuit, and then output to the vibration

The moving coil circuit of the table pushes the surface of the vibrating table to move. The main components of digital power amplifier: pre-control, power amplifier module, protection

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Circuits, power supply parts and electrical cabinets. This system drives small thrust, medium thrust and large thrust series vibrating tables through a modular design. The output range of the power amplifier is 1kVA～300kVA. The system technical indicators are fully applicable to existing or new air-cooled or water-cooled electric vibrating tables.

2.2 Features

Absorb advanced technology from Japan, Europe and the United States, and combine the advantages of its own high-frequency switching power supply control technology. The technology is more advanced after secondary development

 The performance is more reliable, and it is fully modularized and exported to other countries such as Europe and the United States.

   The front control displays various data of the system, running status and fault judgment in detail.

It adopts modular design, easy to assemble, simple to assemble, reliable in work and easy to maintain.

The signal-to-noise ratio is high, and the total harmonic distortion is low.

Power amplifier module N+1 redundant combination, automatic current sharing to improve reliability.

The conversion efficiency is high (greater than 90%), and the modulation conversion frequency is high.

The protection function is complete, the whole power amplifier has: grid overvoltage, grid undervoltage, grid lack of phase, logic fault, power module protection, power

  Rate module temperature, output overcurrent, output overvoltage, drive power, platform displacement, platform temperature, external interlock and other protection circuits, any

When any fault occurs, the output will be turned off and the sound and light alarm will be activated at the same time. .

Strong versatility. Smoothing table (model: SC-0808)

Overview: The SC smoothing platform is designed with high overturning moment and lateral restriction. At the same time, the damping characteristics of the guided oil film are maintained. The smoothing table is made of skateboards,

It is composed of connecting head, natural granite flat plate and horizontal sliding table base. The high-pressure oil becomes low-pressure oil through the damper.

A layer of oil film is formed between the granite slabs, which mainly plays a role of lubrication and reduces the production of sliding table tops when moving on the granite slabs

The friction force of the horizontal sliding table can move freely on the granite slab. The high-pressure oil source is connected to the horizontal sliding table through a high-pressure oil pipe.

It makes the horizontal sliding table system simple in structure, convenient in operation and maintenance, and reliable in work. Weight: 45kg

Table size: 700×700 (mm)

Working frequency: 1000Hz

Vertical auxiliary table: (TB-0808)

In the actual vibration test, the tested product is often larger than the electric table. At this time, it is necessary to expand the original table. The common method is to install an auxiliary table. Some tested products require special installation, which requires a customized fixture to meet this installation. The above two conditions must meet certain technical specifications, such as working frequency, table weight, table acceleration, amplitude uniformity and lateral direction, etc. Therefore, there are strict requirements for such tables or fixtures. The TB expansion table made by Qicheng and the special fixture made by Qicheng have been precisely calculated and carefully designed to ensure that users obtain the best performance they need in terms of structure, materials, and production processes.

Weight: 45kg

Table size: 700×700 (mm)

Working frequency: 1000Hz

VENZO 820 Vibration Controller

Windows2000/XP/NT operating system

Features:

Functions: sine control, random control, classic shock control, resonance search and dwell

Configuration: 2 analog input channels, 1 output channel, ICP sensor and charge sensor can be directly connected.

System composition and configuration

1 System composition According to the needs of users, the solutions provided by us include:

VENZO 820 vibration control hardware:

2 input channels, 1 output channel

Vibration control software package

VibExpert (1) Random vibration control

(2) Sinusoidal vibration control (3) Classical shock control

(4) Resonance search and residence

Accessories: power cord, network connection line, electronic version of "User Manual", a set of software installation CD, password file, etc.

Technical Index of Vibration Controller

VENZO 820 Vibration Controller Appearance

1 Overview

High-performance vibration control system

The VENZO 800 series vibration controller is an excellent controller with a very high cost performance. Vibration control solutions from 2 channels to multi-channels can be provided. The instrument adopts the most advanced DSP framework and control algorithm in the world, 32-bit floating point 450MHz DSP processor, high performance 24

Bit ADC, up to 130dB dynamic range, to ensure reliable control quality. Each input channel has a parallel sampling rate of 102.4kHz, which can perfectly realize functions such as transient impact and long-term waveform reproduction. The instrument and the computer host are connected through a high-speed network and advanced floating design, which greatly reduces system noise and various interferences, and ensures the accuracy of control. All software modules have a Chinese operation interface, which is simple to operate and easy to use. VENZO 800 allows you to select the required hardware modules and software modules according to your needs, and you can also upgrade the software and hardware according to your needs in the future.

Highly integrated advanced design

The VENZO 800 series vibration controller integrates all signal input conditioning modules, AD conversion and DSP modules in a compact chassis. There are no more external interface boxes and more connections. It also supports voltage, charge, and IEPE types. The sensor signal input realizes the high integration of the hardware system. The instrument uses a high-speed network to connect to the PC, which greatly reduces the noise and various interferences of the system. The user does not need to worry about grounding, and there is no need to install the controller driver on the computer. The advanced design greatly simplifies the tedious operation. The main box is equipped with two drive channels, one drive channel can be used to control a single vibration table, and two drive channels can be opened to realize the control of a double vibration test bench. A simple small case can realize a double vibration table. Control, there are very few products that can realize this function in this field at present.

Full-featured software module

VENZO 800 series vibration controller can provide you with the most comprehensive vibration control software modules, including: random, sine, classic shock and resonance search and residence, SRS analysis, sine plus random, random plus random, sine plus sine, sine plus Random add random, transient impact and long-term waveform reproduction and other functional modules. Each functional module provides basic functions and optional special functions, allowing you to customize the system you need according to your needs. The sine low frequency extension function can complete the 0.01Hz test control, the sine high frequency extension function can complete the 12.8kHz test control, and the 20kHz test control can be completed at random. Random up to 6400 lines, sine up to 4096 lines. The shock can run the highest sampling frequency 102.4kHz, the highest 16384 points (expandable). In addition to ordinary vibration control software function modules, special control function modules such as kurtosis control, force limit control, and sine plus sine can be provided. In addition, the VENZO 800 series vibration controller has complete analysis and reporting functions.

Fast, precise and flexible control

The remarkable feature of the VENZO 800 series vibration controller is its fast control speed. The system adopts the most advanced DSP framework and control algorithm, which greatly reduces the feedback time of sine and random control loops, and provides the system with faster response capabilities. Reducing the feedback loop time can improve the performance of resonance search and dwell, and enable the structure to perform vibration control at a high Q value. The system can perform real-time control on up to hundreds of channels with a control bandwidth of up to 20kHz. The system is highly flexible. In addition to integrating industry standards for vibration and shock tests, it also supports non-standard test specifications and can achieve accurate reproduction of the target reference spectrum. At the same time, signals such as acceleration, speed, and displacement can all be used as control signals.

Perfect safety function

The VENZO 800 series vibration controller attaches great importance to the safety of test equipment and devices, and provides powerful safety functions for this instrument. During the parameter setting process, the system compares the maximum displacement, maximum velocity, and maximum acceleration in the target spectrum with the limit parameters related to the shaking table in real time to ensure the safety of the test system; after the parameters are confirmed to be correct, before the test is carried out, Carry out pre-tests to measure the background noise of the system, verify the closed loop of the loop, check the signal-to-noise ratio of each channel, estimate the system transfer function, estimate the system gain, etc., and report inappropriate test conditions. During the test, the control signal will be continuously compared with the alarm and interruption limit parameters. If the control signal is abnormal due to loose accelerometer or cable disconnection, the system will immediately interrupt the test to ensure the safety of the equipment. The emergency stop switch guarantees rapid interruption of the test under any circumstances.

Simple operation, abundant control functions, easy-to-upgrade software and hardware systems, high reliability and high quality make the VENZO 800 series vibration control system extremely cost-effective.

2 main indicators

2.1 Input

2 channel input

A/D conversion: 24 bits

Coupling mode: AC differential, AC single-ended, DC differential, DC single-ended, IEPE, charge

Anti-aliasing filter: 160dB protection in all frequency bands Dynamic range: 130 dB

Signal to noise ratio: better than 100dB

Input range: 0.1, 1.0, 10V

Input impedance: 220kΩ

Maximum input voltage: 36V

Amplitude accuracy: -0.005 dB

Phase accuracy: 0.05deg

Channel interference<-90dB

Distortion: <-100dB@1kHz

Maximum sampling frequency: 102.4 kHz

Input interface: BNC interface

TEDS: Support TEDS

Input signal type: charge, IEPE, voltage sensor signal direct access, highly integrated

2.2 Output

1 channel drive output

24-bit DAC

Dynamic range: greater than 108 dB

Output voltage range: 10V F.S

Maximum output current: 20mA Min

Harmonic distortion: <-100dB@1kHz

Anti-aliasing filter: 160dB/Oct analog plus digital anti-aliasing filter

2.3 Main Box

Size: 290*210*60

Weight: 2.6kg

Working temperature: -30℃ to 70℃

Relative humidity: 95%

Power: less than 25W

Power supply: 100～240VAC (50～60Hz)

Waterproof rating: IP43

Cooling method: conduction fanless cooling. Main cabinet interface: high-speed standard Ethernet computer interface

Vibration resistance: 10-60 Hz @ 0.15 mm peak; 60-150 Hz @ 2 gn, meeting IEC-60068-2-6 standard

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Impact resistance: 10 gn for 16 ms, meeting IEC-60068-2-27 standard, meeting electromagnetic compatibility standard: EN61326-1:2006, EN61000-3-2:2006+A1:2009+A2:2009, EN 61000-3 -3:2008

Safety standard: EN 61010-1:2001

Passed CE certification

2.4 Software function

random

Sine, stepped sine, resonance search and dwell

Classic shock,

Kurtosis control

Groove and limit control

2.5 Analysis & Accessibility

Harmonic distortion measurement

data storage

FFT

SRS

FRF

Waterfall chart signal

Signal calculation

Signal buffer function

Signal editor

Frequency range: DC~5000Hz, can be extended to 40000Hz

Sampling frequency: 51.2KHz, expandable to 102.4kHz

Number of spectral lines: 6400 lines, up to 25600 lines can be selected

Dynamic range: 100dB

Drive cutting: 1~100sigma

Control accuracy: ±1dB@120DOP

Kurtosis: 3~100sigma

Control strategy: weighted average, minimum and maximum, degrees of freedom: 4~12736

Stop rate: Define the rate at which the drive signal drops to zero. Loop compensation gain: Define the update rate of the transfer function. Frequency response rate of change: Define the maximum rate of change of the frequency response function. Start mode: Optional online measurement or open loop in the last test Inspection level: standard, strict, and loose three levels can be selected. Maximum noise of the channel: set the maximum noise allowed to pass. Maximum system impedance: check when the test is equalized or running

Check the maximum impedance of the system

Optional function: high

Frequency extension function

The frequency of random control can be increased to 20,000 Hz, or 40000 Hz

Sine plus random can be superimposed on broadband random background signal up to

16 sinusoidal signals

Random plus random can superimpose up to 16 on broadband random background signal

Narrowband random signal sine plus sine

Up to 16 sine signals can be superimposed, each sine signal can be resident or swept sine plus random plus random. Narrowband random signals and sine signals can be superimposed on broadband random background signals. Kurtosis control can load non-Gaussian random signals to vibration On-stage groove and limit control

The auxiliary reference curve can be set for the vibration level of any measurement channel to protect the test piece to the greatest extent. Sinusoidal control

Frequency range: 1Hz~5000Hz, high frequency can be extended to 51200Hz, low frequency can be extended to 0.01Hz

Number of spectral lines: 512~8192

Dynamic range: 150dB

Closed loop time: 5ms typical

Frequency accuracy: 0.000001Hz

Control accuracy: ±1dB@Sweep frequency at 1Oct/Min and pass through the resonance point with Q value of 50. Dwell: user-defined dwell frequency and time, time can be defined in cycles or length of time. Harmonic distortion: automatically calculated in the analysis frequency band The total harmonic distortion degree, you can choose the harmonic order control strategy: weighted average, smaller value,

Larger value Digital tracking filter: The proportional bandwidth can be selected from 1% to 100% of the output frequency, or 1Hz to

1,000Hz

Small response time: 0.25~50 cycles

Start mode: fast and smooth two modes are optional

Sweep type and rate: linear sweep from 0~6000Hz/min, logarithmic sweep from 0~100 Oct/min

Compression factor: 1~1000

Optional features:

Step sine At the discrete frequency points set by the user, control the vibrating table to perform a frequency sweep test in a frequency step mode. The frequency sweep mode can be selected as a line

Or logarithmic resonance search and dwell Realize tracking and dwell at resonance point Resonance search

Search target: user-defined excitation channel and response channel

Phase tracking feedback gain: 0.01~1

Large frequency drift: 0~1000%

Larger sweep rate: 0~10×normal rate Dwell Dwell time: number of cycles or long time

degree

Dwelling mode: frequency lock dwell, resonance point tracking dwell, sine low frequency extension to 0.01Hz

Sinusoidal high frequency extended to

51.2kHz AUX channel

COLA output; differential output; frequency reference output

THD test

Harmonic distortion