Powered seat adjuster

The first step toward finding the cause of the excessive audible noise in an operating mechanical system may be to analyze the noise signal and the external conditions under which such a noise is generated. In this section, some of the preliminary observations made on the powered seat adjuster are presented. First, a series of tests were performed on the complete seat adjuster. Figure 9.1 shows the test setup and the instrumentation used. A wall-mounted pneumatic cylinder was used to apply various levels of axial force to the seat adjuster s firame. 

Many people have the motor control necessary to operate a motor vehicle, but they do not have the strength required to operate manual hand-controls. Automatic or Fly-By-Wire hand-controls use external actuators (e.g., air motors, servo mechanisms, hydraulic motors) to reduce the force required to operate various vehicle primary controls. Power steering, power brakes, six-way power seats, and power adjustable steering columns can be purchased as factory options on many vehicles. 

Miss Muxdroozol sits back in Bob s massaging, high-back, executive leather chair. She smiles as the five built-in battery-powered massaging units begin to work on her clavicle areas. For a moment, Bob s mind wanders as he thinks of the chair s pneumatic gas lift, providing instant seat height adjustment. 

Using hand and power tools a. Force Provide chairs with padding on the seat Make seat height adjustment Support weight of the tool mechanically... 

When the medical manipulator is part of a complex control system, eg also involving a powered wheelchair wife powered adjustable seat position and an environmental controller, then more problems occur. The integrated control system needs to take account not only of fee individual devices, but of fee potential unsafe outccane of a combination of the devices, eg attempting to pass through a doorway at speed whilst fee arm is extended, or tryii to turn fee chair abruptly whilst fee arm is carrying a load at full reach. 

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