PCB Functional Tester
Boards are clamped in a dedicated fixture for automatic judgment of communication response and output values. Production PCBs are 100% inspected.
Facilities & Quality
Assembly, calibration, functional inspection and 100% outgoing inspection are performed in house — run as a common platform for sensor and electronics production, not tied to any single product, to the quality level required for global OEM series production.
Production
Production line
Dedicated fixtures and inspection equipment per product deliver repeatable quality that does not depend on operator skill.
01. Incoming inspection
Only materials from approved suppliers are used. Dimensions, appearance and function are inspected at receipt and tracked by lot.
02. Assembly & mounting
Assembly and board mounting on dedicated fixtures. Key parameters such as fastening torque are recorded per process.
03. Calibration
Each unit's output is calibrated against reference physical quantities, and calibration data is stored with the product serial number.
04. Functional inspection
Communication response, output characteristics and diagnostics are verified by automated test equipment against product-specific criteria, with automatic pass/fail judgment.
05. 100% outgoing inspection
Every unit is inspected — not sampled — and inspection data is archived by serial number.
06. Packing & shipment
Packed to customer specification and shipped with inspection reports per delivery lot.
Production & inspection equipment
Platform equipment shared across sensor and electronics production, operated and proven on the angle sensor production line. Every machine runs on daily check sheets and a preventive maintenance plan; measuring and inspection equipment is calibrated annually.
Automated Soldering Machine
A special-process machine run under temperature-profile control. Operators are separately certified before assignment.
Optical Microscope
Magnified inspection of solder joints and component placement.
Epoxy Potting Machine
Encapsulates circuits in epoxy under dispensing-volume control, protecting them from vibration, moisture and contaminants.
Vacuum Chamber
Vacuum degassing right after potting removes bubbles from the epoxy. Vacuum level is a controlled key parameter.
High-Temperature Chamber
Used for epoxy curing and high-temperature operation tests. Curing temperature and time are recorded.
Laser Marking Machine
Marks serial and lot numbers on metal housings and parts — the starting point of traceability.
Operated as a common product platform
Processes and equipment are not tied to a single product — they form a platform shared across our sensor and electronics products. A new product joins the same line by adding only its inspection criteria and dedicated fixtures.
Testing
Testing capability
We cover the environmental, endurance and electrical tests required at design verification (DV) and production validation (PV) — performed in house where we have the equipment, and with accredited institutes where we do not. We also support test planning to customer and industry standards.
| Test | Purpose |
|---|---|
| High / low temperature operation | Output stability and operation across temperature |
| Temperature-humidity cycling | Reliability under condensation and humidity cycling |
| Thermal shock | Reliability under repeated rapid temperature change |
| Vibration | Endurance under travel and work vibration |
| Mechanical shock | Structural integrity under impact loads |
| Ingress protection (IP) | Sealing performance for outdoor duty |
| Salt spray | Corrosion resistance |
| Endurance life | Characteristic drift over repeated operation |
| CAN communication verification | Response, diagnostic messages and error handling |
In house
CAN Conformance Test Environment
We run CAN interface conformance testing in house, on a bench network equivalent to the real machine — ECU interaction, bus load and fault injection included — and can configure tests to customer standards. The environment was built and proven against a global OEM (Volvo) conformance specification.
In house
Precision Angle Calibration & Performance Bench
A stepper-motor bench with 0.01° resolution verifies zero setting, linearity, absolute angle and rotational speed, and performs per-unit calibration — calibration infrastructure applicable to rotary and angle-measuring products in general.
In house
Design Software
ZW3D CAD (3D/2D design), KiCad (schematic & PCB) and Fusion 360 (structural analysis) keep mechanical and circuit design, and analysis, fully in house.
Planned
Temperature & Humidity Chamber
−50 to +155 °C · 20–98 %RH. Being introduced to run high/low-temperature and temperature-humidity cycling tests in house.
Planned
Thermal Shock Chamber (two-zone)
−60 °C to +150 °C with basket transfer within 10 seconds, for rapid temperature-change reliability testing (IEC 60068-2-14, ISO 16750-4).
Test condition sheets
Detailed equipment specifications and test condition sheets are available on request. We also support test planning to customer standards.
Quality Management
Quality management system
Traceability
Material lots, calibration data and inspection results are linked to each product serial number. A field issue can be traced back to the originating process.
Process control
First/middle/last article inspection and per-process parameter records catch drift early; lots outside criteria do not move to the next process.
Nonconformance management
Documented quarantine, root-cause analysis, corrective action and effectiveness checks, with countermeasures fed back into work standards.
Customer approval support
We support customer production approval processes, periodic audits and specification changes, providing the required inspection reports and control documents per delivery.
Proven through global OEM production approval
This quality system was proven through the design verification (DV) and production validation (PV) process of Volvo Construction Equipment and is applied to series supply today. The same standard applies to every product and every new customer.
Need process or quality documentation?
Equipment lists, test condition sheets, inspection report formats — ask us for what your review requires.