Pneumatic generator system for simulating operating conditions of an aircraft
First Claim
1. A pneumatic function generator system for maintaining a desired pressure or a desired rate of pressure change with respect to time, comprising:
- a servo valve for controlling the amount of fluid traveling therethrough;
a primary sensor for measuring the pressure of the fluid and for generating an analog signal corresponding to the pressure of the fluid;
a housing defining a chamber;
a temperature sensor disposed in the chamber for measuring the temperature of the primary sensor;
a heating device disposed in the chamber, for adjusting the temperature of the primary sensor;
an analog-to-digital module for converting the analog signal to a digital value;
an input port, coupled to the analog-to-digital module, for receiving an external analog rate or pressure command signal; and
a digital device for receiving the digital value and, depending on the digital value, generating a control signal that is used to control the opening and closing of the servo valve.
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Accused Products
Abstract
A pneumatic function generator system for maintaining a desired pressure and/or a desired rate of pressure change with respect to time. The pneumatic function generator system may include a servo valve for controlling the amount of fluid traveling therethrough, a primary sensor for measuring the pressure of the fluid and for generating an analog signal corresponding to the pressure of the fluid, an analog-to-digital module for converting the analog signal to a digital value, and a digital device for receiving the digital value and, depending on the digital value, generating a control signal that is used to control the opening and closing of the servo valve.
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Citations
18 Claims
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1. A pneumatic function generator system for maintaining a desired pressure or a desired rate of pressure change with respect to time, comprising:
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a servo valve for controlling the amount of fluid traveling therethrough;
a primary sensor for measuring the pressure of the fluid and for generating an analog signal corresponding to the pressure of the fluid;
a housing defining a chamber;
a temperature sensor disposed in the chamber for measuring the temperature of the primary sensor;
a heating device disposed in the chamber, for adjusting the temperature of the primary sensor;
an analog-to-digital module for converting the analog signal to a digital value;
an input port, coupled to the analog-to-digital module, for receiving an external analog rate or pressure command signal; and
a digital device for receiving the digital value and, depending on the digital value, generating a control signal that is used to control the opening and closing of the servo valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pneumatic function generator system for maintaining a desired pressure or a desired rate of pressure change with respect to time, comprising:
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a servo valve for controlling the amount of fluid traveling therethrough;
a primary sensor for measuring the pressure of the fluid and for generating a primary analog pressure signal corresponding to the pressure of the fluid;
an auxiliary sensor for measuring the pressure of the fluid and for generating an auxiliary analog pressure signal corresponding to the pressure of the fluid an analog-to-digital module for converting the primary and the auxiliary analog pressure signals to primary and auxiliary digital pressure values, respectively;
an input port, coupled to the analog-to-digital module, for receiving an external analog rate or pressure command signal; and
a digital device for receiving the primary and auxiliary digital pressure values and, depending at least on the primary digital pressure value, generating a control signal that is used to control the opening and closing of the servo valve. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification