For most applications, a system will require signal and power slip rings to operate; however; many systems will need additional capabilities outside of the electrical transfers. The most common solution is a custom design . With more than a few decades of experience and design archives under our belt, the solution is frequently based on an existing design. Combining a standard signal ring and a standard power ring is not impossible. It is almost certainly more cost effective than a custom design. Most of our designs come with provision for fiber optical rotary joints, which is ideal for high frequency signal transmission. Gigabit Ethernet is a very good example. A single strand of fiber can transmit at least one channel of GigaE.
Coin silver and silver graphite contact for power and gold on gold for signal are natural choices. Structurally, the device can be built on a drum style or even a pancake style. It is largely driven by the space claim of an application.
The signal frequency and voltage rating are important for interference consideration in the design.
Even if your current application does not require a fiber channel, it is a good practice to include the provision anyway as fiber becomes more and more important in modern communication systems.
Working environment is another important piece of information we need in order to provide a suitable model for quote. IP rating is a convenient convention to match the capability of the product with your application. For example, a slip ring to be used in an outdoor environment should be given an IP rating of at least IP65.
Don’t forget to tell us any special features that are necessary. Some may include high altitude, pressure compensation, or explosion proof to name a few.
Power slip rings usually carry 2 Amps of current or higher with voltage ratings up to a few thousand Volts. Wendon does carry some models that can be shipped from stock. Most of our designs come with provisions for fiber optical rotary joints, which is ideal for high frequency signal transmission. Gigabit Ethernet is a very good example. A single strand of fiber can transmit at least one channel of GigaE.