{"id":15042,"date":"2022-04-12T00:00:00","date_gmt":"2022-04-12T00:00:00","guid":{"rendered":"https:\/\/www.dmcinfo.com\/our-work\/from-pickering-relay-to-pickering-matrix\/"},"modified":"2025-05-29T22:46:46","modified_gmt":"2025-05-29T22:46:46","slug":"from-pickering-relay-to-pickering-matrix","status":"publish","type":"our_work","link":"https:\/\/www.dmcinfo.com\/our-work\/from-pickering-relay-to-pickering-matrix\/","title":{"rendered":"From Pickering Relay to Pickering Matrix"},"content":{"rendered":"

Automated Testing<\/strong><\/p>\r\n\r\n

For this project, DMC automated the client\u2019s previously manual testing process. This increased efficiency while maintaining\u00a0quality,\u00a0as automated testing is faster and less error-prone. With our\u00a0extensive experience in automated battery testing, we were qualified to follow the client\u2019s step-by-step process and create a tester tailored to their needs.<\/p>\r\n\r\n

Functional Specification<\/strong><\/p>\r\n\r\n

The test stand comprises a high-performing NI 4065 Digital Multi Meter (DMM), an NI RMX-4101 programmable power supply, and a Hioki ST5520 Hipot meter for measurement instrumentation. This test suite makes a wide range of testing options available to the client. A Pickering Switch Matrix and a Pickering High Voltage Multiplexer provide a robust switching infrastructure to allow\u00a0additional instrumentation to be added or new test configurations to be defined depending on future product requirements.<\/p>\r\n\r\n

Switch Matrix<\/strong><\/p>\r\n\r\n

The core of the test system is built around a Pickering switch matrix which allows\u00a0many connections between Device Under Test (DUT) signal lines and instrumentation. This is the heart of the test system’s ability to adapt to changing product requirements.<\/p>\r\n\r\n

\"Pickering<\/figure>\r\n\r\n

Not only does the switch matrix allow the test stand to reconfigure a test setup in real-time,\u00a0it also allows for the addition of instrumentation or DUT signals in the future with minimal changes to hardware or software.<\/p>\r\n\r\n

\"Physical<\/figure>\r\n\r\n

Digital Multi Meter (DMM)<\/strong><\/p>\r\n\r\n

The DMM, in combination with the Pickering switch matrix, allows the test stand to make differential voltage measurements between any two DUT signals or single-ended measurements referenced to ground or the common line of the programmable power supply.<\/p>\r\n\r\n

\"Multi<\/figure>\r\n\r\n

Programmable Power Supply<\/strong><\/p>\r\n\r\n

The PDU provided the power to the Battery Management System (BMS). The Programmable Power Supply (PPS) allows the test stand to apply a wide range of voltages or voltage profiles to the DUT,\u00a0allowing the PDU to be tested under a wide variety of operating conditions.<\/p>\r\n\r\n

\"Programmable<\/figure>\r\n\r\n

The Hipot meter allows the test stand to perform Hipot testing on the DUT. In this case, the Hipot meter was combined with the Pickering high power 12 bank 2:1 multiplexer to provide high voltage isolation for up to 12 DUT lines.<\/p>\r\n\r\n

\"Hipot<\/figure>\r\n\r\n

Stand Form<\/strong><\/p>\r\n\r\n

All of this measurement and switching\u00a0hardware is contained in a compact rollable test cart. This test cart provides the operator interface along with the interface for the DUT.<\/p>\r\n\r\n

\"EnerSys<\/figure>Through the completion of this project, DMC has\u00a0created a compact and flexible test stand that meets all of the clients’ current testing requirements with the ability to adapt to future products. Having a system that is adaptable to a future product line\u00a0reduces product development costs and allows for flexibility with new products as the client\u00a0expands.<\/p>\r\n","protected":false},"excerpt":{"rendered":"

Automated Testing For this project, DMC automated the client\u2019s previously manual testing process. This increased efficiency while maintaining\u00a0quality,\u00a0as automated testing is faster and less error-prone. With our\u00a0extensive experience in automated battery testing, we were qualified to follow the client\u2019s step-by-step process and create a tester tailored to their needs. Functional Specification The test stand comprises […]<\/p>\n","protected":false},"author":8,"featured_media":15035,"template":"","meta":{"customer":"EnerSys","summary":"

DMC designed and built a turn-key, flexible test system that automated end-of-line testing for battery Power Distribution Units (PDU). Our client, a leading manufacturer in the battery industry, needed a test system to be adaptable to product changes and future products, so DMC designed one to cover the client’s current and future test sets.<\/p>\r\n","description":"","customer_benefits":"