Three comprehensive tests

Three comprehensive tests
Project Introduction
The three-combined test is a comprehensive test that simultaneously applies three environmental stresses: temperature + humidity + vibration. The effect of the comprehensive environment can more truly and realistically reflect the performance of the product in on-site use, and can better expose the defects of the product.

Applying a single environmental stress to a product can trigger product failure, and applying three different environmental stresses to a product can easily achieve an acceleration effect of 3-5 times. At the same time, by combining different environmental stresses, faults that cannot occur when individual stresses are applied can be induced.

When conducting a comprehensive test in which three stresses of temperature, humidity, and vibration are applied simultaneously, from the perspective of the mechanism of failure, the interior of the product undergoing temperature cycling will expand and contract due to the difference in material expansion coefficient, and the joint will become loose. At this time, if Humidity and moisture will invade from the gaps, reducing the friction coefficient of the joints and connections. If vibration stress is applied, the resonance phenomenon of the product will still occur relative to a specific frequency. Through the repeated process of movement, moisture absorption, freezing, and resonance, it is possible for new failure modes to appear (caused by the greatly accelerated single factor failure mode and the combined superposition effect of the three factors).
Application scope
Three comprehensive tests of temperature, humidity and vibration are widely used in complete machines and parts of aviation, aerospace, military, electrical, electronic and other products. Three comprehensive tests are indispensable and important test methods for the entire process of product and material development, prototype testing, and product qualification testing.
method standards
Three comprehensive test standard references: GB/T2423.35, GB/T2423.36, IEC/EN60068-2-50; IEC/EN60068-2-51.

About Us

Shenzhen LCS Compliance Testing Laboratory Ltd., abbr. for LCS, was founded in 2004 in Shenzhen, LCS is now growing into an independent comprehensive third-party institution which focuses on test & certification. Profound technical background and diligent working attitude decided LCS with an outstanding high starting point from the outset，pioneering spirit and consciousness of keeping pace with the times which predestined the thoroughly tempered course of LCS.

Our Labs

LCS Founding Members have engineering background and had gradually built up Safety Lab, EMC Lab, RF Lab, SAR & HAC Lab, Reliability Lab, Lighting Electrical Lab, LED Lighting Performance Lab, Energy Efficiency Lab, Electronic Cigarette Testing Lab, Chemistry Lab, BQTF, Environmental and Occupational Evaluation Lab, Battery Lab, Toy Lab, Textile Lab, Food and Food Grade Material Lab. The establishment of our comprehensive labs ensure our test and certification scope covers almost all fields, such as Reliability and Safety test, EMC test, Chemical Hazardous Substances test, Material Analysis, Food Contact Material test, Bluetooth Test & Certification, Environment and Occupational Health, Performance test of spare parts of Automobile and so on.

Authorization

Moreover, LCS won many authorized qualifications both domestic and overseas. LCS is recognized as IEC/ISO17025 laboratories accepted by CNAS and NVLAP, accredited by CPSC, CMA, accredited for CQC, ISTA, CBTL, SASO, SABS. Meanwhile LCS become laboratory authorized by TUV, BQTF issued by the SIG. LCS had also signed cooperation agreements with FCC, ISED, ETL, CEC, UL, E-Mark, CETECOM, KTC, SAA Approval and many other authoritative institutions, hence we can provide our clients with efficient and professional service for product test and certification.

Experience

Our RF experience ranges from WLAN (802.11b/g/n/a/ac), Wi-Fi 6E, Bluetooth (802.15.1), ZigBee (802.15.4), Z-Wave, UWB (802.15.3), WiMAX (802.16), SRD, DECT, RFID, NFC, GSM, WCDMA (+HSDPA/HSUPA), LTE, 5G (NR/VoNR/eMTC/eMBB/URLLC),UHF/VHF, WHDI, AM, FM, DAB, DVB, GPS, GNSS, COMPASS, GLONASS and more. The products we are mostly working with are basestations, client adapters, laptops, cordless phones, baby monitors, cellulars, radars, sensors, scanners, receivers, immobilizers, remote controls, etc. Modern products incorporate not often one, but a variety of co-existing technologies.

Welcome

LCS is a reliable party. With more than 20 years hands-on experience in the field of Radio, Telecom, EMC and Safety certification, including country approvals worldwide, we will guide you with our knowledge. You are very welcome!

We will be pleased to assist you with your questions or inquiries, please contact us.