The phrase "a system for detecting" is correct and usable in written English.
You can use it when describing a mechanism or method designed to identify or recognize something, often in technical or scientific contexts.
Example: "The researchers developed a system for detecting early signs of disease in patients."
Alternatives: "a method for identifying" or "a mechanism for recognizing".
We will run your code using Moss, a system for detecting software plagiarism.
Winner of this year's Water Industry Achievement Awards, the Canadian firm has developed a system for detecting water loss based on sound.
In order to resolve this issue, we developed a system for detecting microlesions based on liposomes filled with fluorescent dye.
One objective is a system for detecting the early onset of congestive heart failure in those at risk for the disease, says researcher Stephen Intille.
We develop and study a system for detecting copies of documents in large collections which is useful for finding copyright violations.
Based on the electromagnetic acoustic technology (EMAT), a system for detecting the defects of steel tubes has been constructed.
Engineering a sensor system for detecting an extremely tiny signal such as the gravitational-wave force is a very important subject in quantum physics.
The World Health Organization (WHO) has begun to implement a surveillance system for detecting transmitted resistance that exceeds a threshold of 5%.
In fact, many of Darpa's biggest early achievements—such as a satellite system for detecting nuclear tests—are today obscure to a generation that has grown up during a US and Russian moratorium on nuclear weapons testing.
Shortly after arriving from Boeing to take the reins at Ford, in September 2006, Alan Mulally instituted a new system for detecting failures.
This type of bearing is applied in our lab for designing a measurement system for detecting micro gram masses.
