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AssigneeJohn Chatillon & Sons, Inc.
InventorsPhillip M. Lintilhac, Thompson B. Vesecky
Estimating the term…
Apparatus and methods are disclosed facilitating the application of forces and measurement of dimensions of a test subject. In one arrangement the test subject is coupled to a forcing frame and controlled forces applied thereto. Force applied to the test subject is measured and controlled. A dimensional characteristic of the test subject, such as growth, is measured by a linear variable differential transformer. The growth measurement data can be used to control the force applied. The transducer module receives force and dimensional data from the forcing frame. The transducer module is a separate, microprocessor-based unit that communicates the test data to a controller unit that controls the application of force to the test subject and receives the test data from the transducer module for force control, storage, and/or communication to the user.
A transducer module for use for interconnecting a Separate digital microprocessor-based controller module and electrically controlled testing provisions used in testing biological and biocompatible test subjects with a forcing frame adapted to apply force to the test subject and measure displacement of forcing frame members corresponding to dimensional change of the test subject, the transducer module being adapted for cooperation with the controller module, which programs control of the operation of the forcing frame, the transducer module comprising:
In a laboratory test instrument system for applying forces to biological and biocompatible test subjects, including a controller module having a stepper motor, pump, a microprocessor and memory for programming the application of forces to the test subjects, and a forcing frame connected to the pump and having fluid driven force exerting means, distance measuring means and force measuring means, the improvement comprising;
Dependencies are inferred from the claim text.