Mass Properties Measurement Instruments & Services | Raptor

POI Spin Balance Series

raptorscientific — Mon, 21 Sep 2020 22:18:31 +0000

Product of Inertia (POI) models are vertical two-plane spin balance machines. They are the only instruments in the world that measure all mass properties: center of gravity (CG), moment of inertia (MOI), product of inertia (POI), and dynamic unbalance.

With the Space Electronics POI series Spin Balance Machines, only one machine is needed to measure all mass properties. Our unique spherical air bearing design allows measurement of dynamic unbalance, product of inertia (POI), center of gravity (CG), and moment of inertia (MOI) with a single setup on a single machine.

Available in 19 standard models for payloads from 1 to 23,000 lb / 0.5 to 10,500 kg – from determining product of inertia of a spacecraft to dynamically balancing a rocket or missile, our spin balance machines offer the highest accuracy available.

By eliminating the need for multiple machines, the time required to make these measurements is greatly reduced. Alignment errors that occur during setup on different machines are eliminated. In addition, since the test object is not moved between measurements, the potential for handling damage is minimized.

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MP Weight/CG/MOI Series

raptorscientific — Thu, 17 Sep 2020 22:35:03 +0000

Weight, two coordinates of CG, and MOI all in one setup; 100 to 6,500 lb / 45 to 3,000 kg. The MP Series instruments are designed for ease of use and speed of measurement and are intended for those applications that do not require the highest accuracy. For higher accuracy Mass Properties measurement we recommend our KSR Series.

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KSR CG/MOI

raptorscientific — Thu, 17 Sep 2020 22:30:18 +0000

0.1% of measured value, world’s most accurate instruments; 0.25 to 25,000 lb / 0.1 to 11,500 kg. Space Electronics KSR series instruments continue to offer the highest accuracy available for CG and MOI measurement. These combined instruments are available in a variety of sizes and measure two coordinates of center of gravity and one moment of inertia in one setup.

Typical Applications

KSR series are used primarily by the defense and space industries for measurement and verification/validation of center of gravity (CG) and moment of inertia (MOI) in high end payloads such as:

Spacecraft: Satellites and Vehicles, Manned and Unmanned
Spacecraft components and cargo
Military payload: Bombs, missiles, torpedoes, and their components
Aircraft: UAV and Flight Hardware
Aircraft engines
Ground Vehicles: Automotive engines and transmission components

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