MTS Systems Corporation is a leading global supplier of high-performance test, simulation and measurement systems and sensors that was incorporated under Minnesota law in 1966. Our operations are organized and managed in two reportable segments, Test & Simulation and Sensors, based on global similarities within their markets, products, operations and distribution. The Test & Simulation and Sensors segments represented 63% and 37% of our revenue, respectively, for the fiscal year ended September 28, 2019.
Fiscal year 2019 refers to the fiscal year ended September 28, 2019, fiscal year 2018 refers to the fiscal year ended September 29, 2018, and fiscal year 2017 refers to the fiscal year ended September 30, 2017. Fiscal years 2019, 2018 and 2017 all include 52 weeks. All dollar amounts and shares are in thousands unless otherwise noted.
Our Test & Simulation segment (Test & Simulation) provides testing and simulation solutions including hardware, software and services that are used by customers in product development to characterize a product's mechanical properties along with simulation systems for human response features. Our solutions simulate forces and motions that customers expect their products to encounter in use. Mechanical simulation testing in a lab setting is an accepted method to accelerate product development compared to reliance on full physical prototypes in real-world settings, proving ground testing, and virtual testing because it provides more controlled simulation and accurate measurement. The need for mechanical simulation increases in proportion to the cost of a product, the range and complexity of the physical environment in which the product will be used, expected warranty or recall risk and expense, governmental regulation and potential legal liability. A significant portion of Test & Simulation products are considered by our customers to be capital expenditures. We believe the timing of purchases of our products may be impacted by interest rates, general economic conditions, product development cycles and new product initiatives.