Quality Evaluation Technology
Overview
Evaluation Laboratory and Technology for High-Quality Manufacturing
Our company has established a comprehensive quality, safety, and reliability evaluation laboratory under Company-wide quality management to improve product quality and enhance safety. By consolidating and newly establishing our evaluation facilities at the Yokohama Head Office Hybrid Center, we strengthen collaboration with design and production teams, enabling the manufacturing of high-quality products.
・Evaluation Laboratory at JVCKENWOOD
Our laboratory at Hybrid Center is equipped with the latest and a wide variety of evaluation facilities. It includes an anechoic and semi-anechoic rooms that minimize sound reflections to the utmost limit, listening rooms designed to provide high-quality acoustic experiences, a radio wave chamber spacious enough to perform evaluation including vehicles, and 46 units of environmental test equipment with precise temperature control. In addition, the center is equipped with multiple vibration and shock testing equipment, enabling highly accurate durability and reliability evaluations for a wide variety of products, including in-vehicle devices such as car navigation systems and radio equipment.
These facilities are utilized across departments and consolidated into a single location, enabling more efficient use of previously scattered equipment and fostering technological integration. This centralized setup allows immediate feedback of evaluation results to the design teams, contributing significantly to faster product development and enhanced quality.
Hybrid Center and Evaluation equipment
・Evaluation Technology That Create Safety and Trust
Through rigorous evaluations simulating actual usage environments, we assess not only reliability and safety but also focus on providing a comfortable user experience. By leveraging high-precision evaluation technologies closely linked with the development site, we strive for quality that delivers our customers safety and trust.
Case Studies
Below are some examples of evaluation technology initiatives that support our commitment to quality.
Acoustic evaluation
We have created an optimal acoustic testing environment to maximize the inherent performance of audio equipment. Utilizing anechoic and semi-anechoic rooms, which minimize sound reflections to the utmost limit, we conduct multifaceted acoustic measurements such as loudspeaker sound characteristic evaluations, product operational noise sound assessments, and comparative sound quality evaluations before and after environmental testing. Through rigorous acoustic evaluations, we strive to create products with high sound quality and reliability.
Sound quality evaluation of Wood Cone Component in an anechoic room
Electromagnetic wave evaluation
An electromagnetic anechoic chamber is a shielded space designed and constructed to be unaffected by external electromagnetic waves and to prevent electromagnetic waves from leaking to the outside. Its structure also suppresses internal reflections, ensuring the electromagnetic environment suitable for measurements and testing. Our facilities include an electromagnetic anechoic chamber large enough to accommodate actual vehicles, enabling not only testing of individual products but also in-vehicle equipment EMC*1 testing with the entire vehicle inside. By conducting these tests in an environment free from the influence of external radio waves, we strive to suppress electromagnetic waves that affect other devices, improve noise resistance, and prevent malfunctions.
Electromagnetic anechoic chamber for radio wave
Our company is certified as an accredited testing laboratory by VLAC (Voluntary EMC Laboratory Accreditation Center)*2, an official accreditation body for EMC testing laboratories, and we operate an in-house EMC testing facility that conducts product verification from an impartial third-party perspective. By having EMC testing specialists conduct tests from an impartial standpoint, we are able to deliver high-quality JVCKENWOOD products t hat comply with the EMC standards of each country to our customers more quickly.
*1 EMC (Electromagnetic Compatibility): The ability of electronic devices to operate stably without causing or receiving electromagnetic interference
*2 VLAC (Voluntary EMC Laboratory Accreditation Center): An accreditation organization specializing in EMC testing laboratories
Non-destructive evaluation
We utilize X-ray and CT equipment to precisely inspect areas that cannot be visually confirmed, such as the contact points between printed circuit board and connectors, as well as the condition of wire bonding on ICs. This non-destructive inspection enables accurate detection of internal defects and minute connection failures, contributing to improved product reliability and durability.
Evaluation of connector contacts
Evaluation of IC wire bonding
Vibration evaluation of in-vehicle equipment
Vehicles travel on a wide variety of roads around the world. Road conditions differ significantly depending on the country or region, such as unpaved roads or the cobblestones of Europe. We reproduce these diverse vibration environments to evaluate how well in-vehicle products can withstand them and maintain quality.
By using random vibration waveforms based on actual driving data and applying vibration to products in three directions (X, Y, and Z), we are able to reproduce realistic loads and simulate actual road conditions. Through these tests, we ensure product performance across roads worldwide, providing high-quality products that customers can use comfortably and reliably for a long time in the global market.
Triaxial Random Vibration Testing Equipment
Vibration Testing Section
Vibration testing video
We conduct tests that apply vibration to products in three directions, (X, Y, and Z) and verify that the products operate normally even under vibration.
Robustness evaluation of radio
JVCKENWOOD ensures the robustness and reliability of its radio equipment through rigorous testing in various simulated environments, guaranteeing long-term, dependable customer use. In addition, some of our radio models meet the MIL-STD-810 environmental test standards for U.S. defense equipment.* This standard verifies that equipment can withstand severe environments such as temperature, humidity, impact, and water pressure, ensuring reliable operation under any circumstances.
*Note: Applicable standards vary by model.
Temperature chamber testing equipment
Environmental testing Equipment
Testing videos
Videos of various tests are available below.
Drop test
We conduct drop tests simulating the accidental dropping of products and verify that the products function normally after impact without compromising quality.
Extreme temperature test
We conduct temperature tests under extreme temperature conditions simulating a variety of usage environments and verify that the products provide stable performance even in severe cold or heat.
Heavy rain test
We conduct rain tests on the products simulating usage environments during rainfall.
Splash test
We verify that the products are not affected even by direct water spray.
Immersion test
We conduct submersion tests, immersing our equipment in water for a specified duration, to confirm the radios will operate normally even if accidentally dropped into water.
Key push test
We conduct repeated operation tests on control parts like buttons, verifying the product durability required for reliable, long-term customer use.
