Electric Vibration Test System Used For Find Early Battery Failure And Simulate Working Condition

Product Information For Electric Vibration Test System:

Environmental Stress Screening (DCS) is extremely effective in eliminating potential product defects. In the development stage, it becomes a magic weapon to find product design defects to achieve reliability growth; in the production stage, it becomes an important means to reduce production costs and create excellent products.

The DCS project will be applied during product development and production, which can greatly improve product reliability and reduce maintenance costs. Applying DCS during development can greatly save testing time and cost, thereby eliminating or reducing hidden defects before testing. The benefits for producers include: insight into reliability problems in products or processes, so as to eliminate reliability problems from products and processes, reduce production costs and save resources.

Vibration test can be used to find early battery failure, simulate actual working condition assessment and structural strength test. The product has a wide range of applications, wide application range, remarkable and reliable test effect. It is an ideal battery-specific vibration test for battery manufacturers, quality inspection departments and research institutes. Test Equipment. It is suitable for vibration testing of various types of single cells and battery packs such as charging treasures, lithium-ion, nickel-metal hydride, nickel-cadmium, lead-acid, and nickel metal hydride.

Vibration tests can also be used for fatigue tests of products for life assessment of products.

System working diagram For Electric Vibration Test System:

Technical Performance Indicators of Each Component:

Vibration Generator (Model: (DV-300) / Power Amplifier (Model KA-3)
Sine thrust	22000N (2200kg.f)
Random thrust	22000n (2200kg.f)
Impact thrust	44000N (4400kg.f)
Frequency range	DG～3000Hz
Continuous displacement	51mm
Shock displacement (maximum displacement)	51mm
Maximum speed	2m/s
Maximum acceleration	981m/s2 (100g) (no load)
Moving coil diameter	Φ320mm
1st order resonance frequency	3200 hz±5%
Allowable eccentric moment	≤2500N·cm
Equivalent mass of moving parts	20kg
Load connection point	13
Table screw size (standard)	M8
Table screw layout (diameter, circumference)	13-M8 deep 16mm
Axial isolation frequency	＜2.5Hz
Maximum load	400kg
Flux leakage	≤1mt
Ambient temperature	0~40℃
Table body size (without packaging) (L×W×H) approx.	1200mm×870mm×1100mm
Table weight (without packaging) approx.	1600kg
Amplifier output	22kva
Snr	＞65db
System protection	1. power amplifier overvoltage protection 2. system timing protection 3. power amplifier undervoltage protection 4. zero signal protection (reset) 5. over-displacement protection 6. leakage protection 7. platform overheating protection 8. excitation fuse protection 9. module overheating protection 10. external timing protection 11. output over-current protection 12. external zero signal protection 13. output overvoltage protection 14. interlock protection of horizontal sliding platform 15. module overcurrent protection 16. thermal relay overload protection 17. module timing protection 18. power amplifier power-on soft start protection
Rated output voltage	100Vrms
Output current	220A
Input resistance	≥15kω
Input signal voltage	≤1.5rms
Power amplifier efficiency	＞90%
Harmonic distortion (resistive load)	＜1.0%
Output voltage measurement error	≤5%
Output current measurement error	≤5%
Output current crest coefficient	≥3
DC stability	The zero drift of the output terminal is not more than 30mv/8h
Frequency range	1-120000hz: ±3db; if gain: ≥80
DC/AC conversion efficiency	＞92%
Load nature	Resistive, capacitive, inductive any
Parallel current sharing unbalance	≤2.8%
Mean time between failures (MTBF)	＞3500h
Cooling method	Forced air cooling
Power supply	Ac 3-phase 50hz 380v±10%
Dimensions (without packaging) (L×W×H) approx.	850mm×580mm×1920mm
Amplifier weight (without packaging) approx.	500kg
Fan (Model: FJ-2000)
Fan power	7.5kw
Air volume	67.5m3/min
Duct diameter	200mm
Duct length	4.5m
Wind pressure	8800pa
Dimensions (without packaging) (L×W×H) approx.	500mm×520mm×650mm
Weight (without packaging) approx.	200kg
Horizontal slid table (Model: SC-0505)
Table size	1000×1000mm (square)
Equivalent mass (maximum load bearing)	About 150kg
Upper limit frequency	Sine 2000hz, random 2000hz
Table material	Magnesium Aluminum Alloy
Vertical extension table (model: TB-0505)
Table size	1000mm×1000mm (square)
Equivalent mass (maximum load bearing)	About 143kg
Upper limit frequency	Sine 800hz, random 2000hz
Table material	Magnesium Aluminum Alloy

 

Controller Overview and Main Technical Parameters:

 

1. Technical indicators and functions

1.1. Technical indicators and functions of the sinusoidal control measurement system:

Frequency range:	DC-22000Hz
Crossover point:	32 segments, and equal displacement, constant speed and constant acceleration can be set arbitrarily
Frequency display:	The vibration test curve set by the man-machine dialogue can be directly displayed on the screen, and the vibration curve can be displayed in real time during the vibration test, and the error dB at that time can be continuously displayed.
Output voltage:	7Vrms
Sweep mode:	linear, logarithmic
Sweep rate:	0.1-10oct/min
Control precision:	±0.5dB
Dynamic range:	79dB
Control method:	Peak value, average value, effective value, tracking filter
Vibration mode:	Fixed frequency, frequency sweep (linear, logarithmic), pause, resume, return
Filtering form:	Offset anti-aliasing filter (eight stops) passband 0.2dB/oct
Signal form:	Sine wave
Waveform Distortion:	≤0.5%
Setting function: The test specifications set by the man-machine dialogue can be saved for reuse. The controller can be mounted on the rack and integrated with the power amplifier cabinet, or it can be separated from the power amplifier cabinet.

 

1.2. Technical indicators and functions of random control measurement system:

Frequency range	100,200,400,500,1000,2000,4000,5000Hz
Resolution	100,200,400,800 lines
Drive spectrum dynamic range	60dB
Control spectral dynamic range	40dB
Loop time	2000Hz, 400 lines single channel 0.6 seconds
Power spectrum control accuracy	±1dB (90% confidence level)
RMS value control accuracy	±0.2dB
Control channel	Independent channel
Control method	Average, maximum
Spectrum settings	Up to 32 levels, both PSD [(m.s2)2/Hz] and dB/oct can be set

 

1. 3. Technical standards and functions of the impact control measurement system:

Waveform	Half sine, triangle, sawtooth, square wave
Shock spectrum synthesis Frequency range	5-2000Hz
Vibration level preset	There are seven vibration levels of -18dB, -15dB, -12dB, -9dB, -6dB, -3dB, and 0dB, and the vibration time of each vibration level is set by the user.
Upgrade method	There are two working modes of automatic upgrade and manual upgrade.
Display function	It has real-time display and printing functions.
Protective function:	With over-limit alarm, open circuit protection and over-limit automatic shutdown
Setup function:	The test specifications set during man-machine dialogue can be saved for repeated use.
Measuring range:	0-200g is divided into eight gears 1, 2.5, 5, 10, 25, 50, 100, and 200g range automatic shifting.
Filtering form:	Programmable anti-aliasing filter (eight levels) passband 0.2dB, stopband -55dB/oct.
Signal form:	True random, pseudo random.

 

1. 4. Features and technical indicators of USB01 card

Full-scale input	16-bit 16-channel single-ended A/D, speed 400KS/S, +/-5V
Full-scale output	1 channel 16-bit D/A, +/-5V
Win-XP	Support USB1.1 and USB2.0 standard, suitable for Win-2000
Main controller	32-bit 120mhz floating-point digital signal processor (DSP)
Digital output	8 bits
High-speed continuous acquisition	34K*32Bit high-speed static memory
Clock signal output	819.2K filter
Input channel	2-channel single-ended
Analog input signal voltage range	Bipolar +/-5V
Resolution	16 bits
A/D conversion time	2.5 microseconds
Acquisition rate	400khz
Precision	Better than 0.015%
Non-linear deviation	<4 LSB
Data Format	16-bit two's complement
Input resistance	10MΩ
A/D conversion trigger mode	Command, timer
D/A output signal voltage range	Bipolar +/-5V
D/A resolution	16 bits
D/A conversion time	5 microseconds
Precision	Better than 0.015%
Non-linear deviation	<4 LSB
Data Format	16-bit two's complement
Output resistance	<0.1 Ω
Main controller	32-bit 120mhz floating-point DSP TMS320VC33
System clock	40.96khz
Two 32-bit timer/counters	Used for D/A and A/D timing
Digital output	8 bits (TTL level)
Clock output	819.2khz
Power consumption	<2.5W (5V, 500ma)