- Slip rings are used to measure temperature, torque, speed, and position of rotating parts in detail while supplying power to the driving parts and heat sources on the rotating parts.

- Slip rings are required to be compact, lightweight, multi-pole, long-life, high quality, and capable of a wide range of rotational speeds from low to high.

- The factory can also create a set value table by setting the instrument's set values to match the sensor or amplifier output.

Examples of measurements with Slip rings

Measurement of internal temperature and rotation speed of agitator tanks Agitators for chemicals, pellet melting machines, roasting machines, etc.	Measurement of temperature and rotation speed of heat rolls  Large-size printing machines, sheet film manufacturing equipment, etc.

What is a slip ring?
A slip ring is a rotary connector that can transmit power or electrical signals to a rotating object.
It rotates while the metal brush on the fixed side and the metal ring on the rotating side keep in contact with each other.

Hollow type

Shaft-end type

Encoder built-in type is also available, Installation space can be made more compact.

Advantages of Slip Ring
- No kinks in cables or lead wires, no tangling on the shaft, and no wire breakage
- Uninterrupted power transmission and communication.
- A combination of poles can be selected for signal, power, control, and other applications.

Without slip rings...　(lead wires only) Wires between the rotating side and the stationary side become entangled in the shaft, causing rotation to stop and wires to break. With slip rings... By using a slip ring between the rotating side and the fixed side, power and signals can be transmitted without wires getting tangled.

Outputs Analog output CAN RS-232C RS-485 BCD Data logging Count control input Alarm output

Applications: Measurement of temperature, torque, speed, position, etc. of the following rotating parts

Engine	Rotor of motor	Transmission	Tire and brake	Turbine	Pump	Arm position of robot
Cameras	Turntables	Construction machinery, agricultural machinery, fire trucks, etc.	Windmills	Filling machines and other production equipment	Semiconductor manufacturing equipment

What measurement can do
- Multi-pole slip rings and a wide variety of measuring instruments allow you to simultaneously and precisely monitor various conditions on rotating objects.
- Noise-resistant pulse signals can be transmitted over long distances, enabling high-precision measurement even when the measurement target is far away from the measurement device.
- The measurement signal is amplified by a thermocouple amplifier for rotating objects, avoiding temperature measurement errors and reducing noise effects.
- Display and measurement with analog and digital outputs with fast update time.
- CAN communication automatically outputs measurement data at each update time, reducing program development costs (depending on model).
Measurement data is acquired by command response method except for CAN communication.
- The EXL series of measuring instruments (output update from 40 ms) starts at 14100 yen*　　*2451 type (without display, DIN rail mounting) for voltmeters, etc.

Selection Points
Slip ring
- Wide speed range from low speed to high speed
- Compact and lightweight: Minimizes influence on rotation
- Vibration resistance: Suitable for long or cantilevered rotating elements, etc.
- Low noise and long life: High conductivity and low ionization tendency of gold and silver sliding contacts provide long-term signal and power stability.
- Multi-pole, multi-CH support
- Thermocouple amplifier: Mounted on rotating elements to reduce noise effects, built-in cold junction compensation circuit, no compensation conductor required

Measuring instruments
- Analog output of 0.1ms (SPD, TQ) to 40ms (EXL series) update
- CAN communication with 1ms (EX series except thermocouple meter), 2ms (thermocouple meter), 40ms (EXL series) update
- Periomatic™ calculation method (SPD, TQ) for high accuracy and fast response even at very low speeds
- Combines multiple types of multi-CH measurement in a single housing, and can be boxed in.
- EXL series (output update from 40 ms) starts from 12,400 yen* *2451 type (without display, DIN rail mounting) for voltmeters, etc.
- Factory setting of measuring instruments and creation of setting value tables according to sensor and amplifier outputs are also available.

Products
EX Series

RTD [Temperature] TC [Temperature] Thermistor [Temperature] Resistors Speed Torque (frequency deviation) Current Voltage Resistance CAN to Analog conversion etc;

Customization Examples: - Multi-CH and multi-type measurement in a single unit - Putting in an easy-to-use housing. Customization page

Example of production results:

Slip ring for measurement and control that transmits electrical signals and power between rotating and stationary sides (manufactured by TOSOKU Co., Ltd.)
We also support customers in selecting slip rings and measuring instruments that meet their equipment specifications. Please feel free to contact us.
　 　

Products		Points	Overviews
	Slip ring for measurement and control Product pages　 *To TOSOKU Web page	Compact, Lightweight Shaft end type / hollow type High-speed rotation Multi-pole Vibration noise resistance Long life	- Mounting method: shaft end type and hollow type - Ring and brush: Integrated type and separate type - Available from low speed (several rpm) to high speed (20,000 rpm) - Compact and lightweight for high-speed rotation - Amplifier mounted on the rotating element is also available to amplify the measurement signal and reduce the influence of noise.