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Slip Ring & Rotation Sensor Assembly SR/ERT Series

* SR/ERT Series

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* 10, 20, or 36 slip ring connections Encoder or resolver rotation sensor Additional encoder electronics (built in) Available with or without weatherproof seals Different rotor styles Circular connectors or color coded solder terminals Instrumentation quality rings & brushes Sealed, corrosion resistant metal housing Lightweight and compact Quick delivery

Description

- The SR/ERT Series is used when slip rings and/or a rotation sensor need to be mounted at the end of a rotating shaft. The gold alloy slip rings are used to make high quality electrical connection to strain gages, thermocouples, or other sensors that have been installed on rotating machinery. Current capacity is 0.5A per connection and the maximum peak resistance variation is 0.1Ω. The rotation sensor is used to measure rotational velocity, angular position, and direction of rotation. The rotation sensors do not use any of the slip ring connections. The housings are 3 to 5 inches long, depending on the number of slip rings. They weigh about 15 ounces. The rotors are made from high strength stainless steel. The stators are lightweight, nickel-plated, aluminum. Threaded holes are provided for attaching a rotation restraint. Connection information is permanently engraved on the housing. Circular connectors or solder terminals are offered as wiring terminations. A circular connector is usually specified on the stator. On the rotor, test applications needing a quick disconnect specify circular connectors. If small size is needed, solder terminals are specified on the rotor. In both cases there is also a choice of orientation. All the housings in this series have been designed to accept contacting rotary seals. Units ordered with these seals (choice W) are completely weatherproof and can survive days of total submersion. The seals limit operation to 2000 rpm maximum. Most wet weather applications, like automotive wheels, are within this range. For higher speeds in dry conditions, order units without the contacting rotary seals. Units without seals are capable of the following speeds: 10 rings: 10,000 rpm, 20 rings: 4000 rpm, and 36 rings: 2400 rpm. Unit torque with seals is 21 inch-ounces. Unit torque without seals is 3 inch-ounces. If the application requires a high speed, weatherproof slip ring & encoder, consider units with noncontacting labyrinth seals in the SR/E512 series. Rotation sensor choices E256, E360, E500, & E512: Four optical encoder resolutions are offered, see the table below. Each of these encoder choices has 4 outputs, shown graphically below. Outputs A and B are in quadrature (exactly 90▲ out of phase). Output I is an index pulse. Output A

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Slip Ring & Precision Encoder Assembly SR10A/PE512

* SR10A/PE512

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* 10 circuit slip ring with optical encoder 2 outputs of 512 ppr in quadrature 1 output of 1 ppr for an index pulse All pulses accurate within 5 arc-minutes Standard models sealed against dust Instrumentation quality rings and brushes Weatherproof units available

Description

- The Michigan Scientific Slip Ring and Precision Encoder Assemblies are used for applications requiring both a slip ring and a precision encoder. These assemblies are available in both standard and weatherproof models. Designed to mount on the end of a rotating shaft, they make electrical connections to strain gages, thermocouples, or other rotating sensors, while simultaneously providing pulses to measure rotational velocity and angular position. The slip ring brushes and rings are made of precious metals, which minimize noise and enable the assemblies to be used for low level instrumentation signals. This slip ring accepts up to 10 circuit connections and incorporates an optical encoder that generates 2 outputs of 512 pulses per revolution (ppr) in quadrature and a third output of 1 ppr. The quadrature feature detects the direction of rotation, and the 1 ppr is an index pulse used as a reference point when measuring angular position. True shaft position is indicated within 5 arc-minutes, resulting in high accuracy. This is particularly important when making measurements such as torsional vibration, instantaneous velocity, and angular position. Analog output signals for angular position and rotational speed can be obtained by using these models with Michigan Scientific’s Frequency to Voltage Encoder Electronics. Connections to the standard models are made through color coded solder terminals located on both the slip ring rotor and slip ring stator. For the weatherproof models, connections to the slip ring rotor are made through terminals or a military style connector. To provide complete weatherproof protection, the assemblies can be sealed with a rubber boot that protects the terminals on the slip ring stator, or with 3145 RTV silicone. Permanently lubricated bearings eliminate the need for routine cleaning and maintenance.

Slip Ring & Encoder Assembly SR10M/E60

* SR10M/E60

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Description

- The Michigan Scientific SR10M/E60 Slip Ring and Encoder Assembly is used for applications requiring both a slip ring and an encoder. It is designed to mount on the end of a rotating shaft and make electrical connection to strain gages, thermocouples, or other rotating sensors, while simultaneously providing pulses to measure rotational speed. The slip ring brushes and rings are made of precious metals which minimize noise and enable the assemblies to be used for low level instrumentation signals. The SR10M/E60 accepts up to 10 circuit connections and incorporates a pulse encoder that enables rotational speed to be measured. The encoder generates a 60 pulse per revolution square wave signal with a range of 0 to 6000 RPM. Since the pulses per second are equivalent to RPM, rotor speed can be recorded directly from a frequency display without scale conversion. Analog output signals for rotational speed can be obtained by using the SR10M/ E60 with Michigan Scientific’s frequency to voltage encoder electronics. This model is also designed with a convenient manually operated brush lifter to extend the life of the slip ring assembly.When it is not necessary to make electrical connection through the slip ring, the brushes can be lifted off the rings. The slip ring will continue to rotate, however, the brushes will not be in contact with the rings and wear will therefore be reduced. Connections to the slip ring rotor are made through color coded solder terminals located on both the slip ring rotor and slip ring stator. Permanently lubricated bearings eliminate the need for routine cleaning and maintenance.

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SR- Series Slip Ring Assembly SR10M, SR20M, SR36M

* SR10M, SR20M, SR36M

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* 10, 20, and 36 circuit slip rings Instrumentation quality rings and brushes Rugged stainless steel construction Lightweight and compact Permanently lubricated bearings Color coded terminals Sealed against dust

Description

Michigan Scientific's SR Series Slip Ring Assemblies are used for a variety of applications requiring 10, 20, or 36 circuit connections. They are designed to mount on the end of a rotating shaft and make electrical connections to strain gages, thermocouples, or other sensors that have been installed on rotating equipment. The slip ring brushes and rings are made of precious metals, which minimizes noise and enables the assemblies to be used for low level instrumentation signals. In addition, a high grade stainless steel case provides protection from dust and other contaminants. The SR10M model is designed with a convenient, manually operated, brush lifter to extend the life of the slip ring assembly. When it is not necessary to make electrical connection through the slip ring, the brushes can be lifted off the rings, while the slip ring continues to rotate, thus reducing the amount of wear. Connections to the slip ring assemblies are made through color coded solder terminals located on both the slip ring rotor and stator. Permanently lubricated bearings eliminate the need for routine cleaning and maintenance. The circuit options available on these slip ring models make them ideal for use in instrumentation applications where a substantial number of circuit connections are required.

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Short S-Series Slip Ring Assembly S4/X, S8/X

* S4/X, S8/X

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* 4 and 8 circuit slip rings Compact design Sealed against dust Color coded terminals Permanently lubricated bearings Rugged stainless steel construction Instrumentation quality rings and brushes

Description

- Michigan Scientific's Short S-Series Slip Ring Assemblies are utilized for a variety of applications requiring up to 8 circuit connections. They are designed to mount on the end of a rotating shaft and make electrical connection to strain gages, thermocouples, or other sensors that have been installed on rotating equipment. The slip ring brushes and rings are made of precious metals that minimize noise and enable the assemblies to be used for low level instrumentation signals. In addition, a high grade stainless steel case provides protection from dust and other contaminants. The Short S-Series models are available in 4 and 8 circuit slip ring assemblies. Connections are made through color coded solder terminals located on the slip ring rotor and a connector on the slip ring stator. Permanently lubricated bearings eliminate the need for routine cleaning and maintenance. The lightweight and compact design of these slip ring assemblies make them ideal for use in applications where limited space is available.

Mounting These models can easily be mounted to the end of a shaft. Refer to the literature on S-Series Slip Ring Assemblies for a detailed drawing and description of the mounting procedure. Contact Michigan Scientific for applications in which the slip ring assemblies are subjected to extreme vibration.

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S Series Slip Ring Assembly S4, S6, S8, S10

* S4, S6, S8, S10

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* 4,6,8 and 10 circuit slip rings Sealed against dust Color coded terminals Lightweight and compact Permanently lubricated bearings Rugged stainless steel construction Instrumentation quality rings and brushes

Description

- Michigan Scientific’s S Series Slip Ring Assemblies are utilized for a variety of applications requiring up to 10 circuit connections. They are designed to mount on the end of a rotating shaft and make electrical connection to strain gages, thermocouples, or other sensors that have been installed on rotating equipment. The slip ring brushes and rings are made of precious metals, which minimize noise and enable the assemblies to be used for low level instrumentation signals. In addition, a high grade stainless steel case provides protection from dust and other contaminants. These S Series models are available in 4, 6, 8, and 10 circuit slip ring assemblies. Connections are made through color coded solder terminals located on both the slip ring rotor and slip ring stator. Permanently lubricated bearings eliminate the need for routine cleaning and maintenance. The lightweight and compact design of these slip ring assemblies make them ideal for use in applications where space is limited.

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항공우주

Slipring - Michigan Scientific