Testing

testing

As designers, one of the things we bring to the table is experience with testing. The high bar of agency testing is between you and your customers. We have the equipment and experience required to test your products. We own advanced test and diagnostic tools to minimize the time to find errors and provide solutions. Our tools include logic analyzers, JTAG debuggers, oscilloscopes, and an assortment of meters. We also have a full suite of EMC test equipment. We have experience designing custom automated test systems for manufacturing operations. Our software tools include code coverage (VectorCAST), Wireshark, and other assorted test programs. All embedded products we design utilize the services described below:

Software Functional Testing

We implement a preliminary test plan based on the design specification, and a final test plan after the details of the product are understood. Diagnostics to test the initial prototype are the highest priority.

Our software testing incudes:

-Code Coverage

-Code Complexity

-Unit Testing

-Use Case Testing

-FMEA

-Fuzz Testing

– BIST

Hardware Functional Testing

We provide a preliminary test plan based on the design specification, and a final test plan after of previewing the product.

 

Our hardware testing includes:

– White Box Testing

– Black Box Testing

– Accelerated Life Testing

– FMEA

– Environmental testing

– NIST Traceable lab equipment

IBM
pcb

PCB Design Simulation

Hyperlynx (by Mentor Graphics) is used to verify the hardware design after PCB layout. It takes into account the length of signal paths and guarantees signal integrity.

SOLIDWORKS Flow Simulation – A computational fluid dynamics program used to identify hot spots and heat transfer inside products and optimize heat dissipation.

Modelsim combines simulation performance and capacity with the code coverage and debugging capabilities required to simulate multiple blocks and systems and attain ASIC gate-level sign-off in Verilog, VHDL, and SystemC.

Software Functional Testing

We implement a preliminary test plan based on the design specification, and a final test plan after the details of the product are understood. Diagnostics to test the initial prototype are the highest priority.

Our software testing includes:

  • -Code Coverage
  • -Code Complexity
  • -Unit Testing
  • -Use Case Testing
  • -FMEA
  • -Fuzz Testing
  • – BIST

Hardware Functional Testing

We provide a preliminary test plan based on the design specification, and a final test plan after of previewing the product.

Our hardware testing includes:

  • – White Box Testing
  • – Black Box Testing
  • – Accelerated Life Testing
  • – FMEA
  • – Environmental testing
  • – NIST Traceable lab equipment

Test Documentation and Traceability

We believe that in order to get the best value out of testing, you need clearly defined requirements. We can help provide this. This is why we have rigorous documentation and traceability in our testing efforts.

Our test documentation effort includes:

  • -Test Requirements
  • -Test Plans
  • -Test Reports
  • -Functional Test Cases
  • -Regression Test Cases
  • -Test Result Sign-off

Automated Test Systems

We have implemented automated test systems for manufacturing environments.

Manufacturing Testing

We design and build testing rigs to support manufacturing efforts. We also provide detailed work instructions for use by manufacturing technicians.

Testing for Regulatory Agency Certification and Approvals

NAM has extensive experience with the equipment and systems testing required to attain certification and approvals required by US and international agencies and regulatory bodies. NAM will guide you through the process to ensure that you have the necessary reports and documentation needed for approval.

NAM has experience with obtaining certification and approval for the following:

  • UL  -Underwriters Laboratories, A US company that drafts safety standards for electrical equipment.  They certify and tests products for electrical safety
  • CE- Conformite Europeene or European Conformity.  A mandatory marking for products sold in Europe.  Similar to FCC Declaration of conformity.  The CE marking indicates that the product complies with directives in relation to ‘Electro Magnetic Compatibility, meaning the device will work as intended, without interfering with the use or function of any other device.
  • IEC – International Electrotechnical Commission, a non-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies. IEC standards in the IEC 61000 family are used to ensure compliance with the EMC Directive.
  • The IP Code – International Protection Marking – classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures.
  • ATEX- a European Directive describing what equipment and work environment is allowed in an environment with an explosive atmosphere.
  • FCC- Federal Communication Commission.  They regulates interstate and international communications by radio, television, wire, satellite and cable in all 50 states, the District of Columbia and U.S. territories. An independent U.S. government agency overseen by Congress, the commission is the United States’ primary authority for communications law, regulation and technological innovation. They set the declaration of conformity of with accredited testing laboratory for radiated emissions.
  • NEMA – National Electrical Manufacturers Association (NEMA) defines standards used in North America for various grades of electrical enclosures typically used in industrial applications. Each is rated to protect against personal access to hazardous parts, and additional type-dependent designated environmental conditions. A typical NEMA enclosure might be rated to provide protection against environmental hazards such as water, dust, oil or coolant or atmospheres containing corrosive agents such as acetylene or gasoline.

Environmental Testing

We have an on-site environmental chamber to meet environmental testing need for your product. Our environmental chamber is NIST traceable for UL conformance testing.

  • Environmental Chamber Specification:
  • Temperature: -40°C to +200°C
  • Humidity: 5% to 98%
  • Workspace Dimensions : 30” W x 36” H x 32” D

We can certify your product for the following tests:

  • Electrical fast transient/burst (EFT) immunity
  • Electrostatic discharge (ESD) immunity
    • Immunity to conducted disturbances
    • Conducted emissions
    • Surge immunity
    • Voltage dips, short interruptions and voltage variations immunity
    • High Potential safety (Hi-Pot)