Method and apparatus for measuring and calibration of turbulence

• US 5,541,591 A
• Filed: 04/21/1995
• Issued: 07/30/1996
• Est. Priority Date: 04/21/1995
• Status: Expired due to Term

• Current Assignee: Gary L. Bush
• Original Assignee: Gary L. Bush
• Inventors: Bush, Gary L.
• Primary Examiner(s): SWANN III, GLEN R
• Application Number:
  US08/426,768
• Time in Patent Office: 466 Days
• Field of Search: 340/968, 340/963, 340/601
• US Class Current: 340/968
• CPC Class Codes: G05D 1/0615 to counteract a perturbation, e.g. gust of wind

Abstract

A sensor that transmits data in response to detecting turbulence. The sensor is located somewhere within an aircraft. A modification circuit is connected to the sensor. This modification circuit may include a threshold detector for passing on signals exceeding a selected threshold. Other functions provided by the modification circuit could include averaging of signals and determining whether a threshold has been exceeded more than once within a particular amount of time or how many times the threshold has been exceeded within a selected amount of time. An adjustment circuit adjusts the signal based on the characteristics of the aircraft. This adjustment circuit is employed to standardize the indication of turbulence in aircraft having different characteristics. For example, a large aircraft and a small aircraft would require different adjustments of the signal to produce a standard indication of turbulence. A display device is connected to the adjustment circuit to display the standardized indication of aircraft turbulence.

Claims

1. An apparatus for detecting turbulence in an aircraft comprising:

a sensor, wherein the sensor transmits a data signal in response to detecting turbulence;

a threshold detector circuit connected to the sensor, wherein the threshold detector receives the data signal from the sensor and transmits the data signal when the data signal exceeds a threshold value;

an adjustment circuit connected to the threshold detector, wherein the adjustment circuit adjusts the data signal based on the characteristics of the aircraft; and

a display device connected to the adjustment circuit, wherein the display device provides a standardized indication of aircraft turbulence.

2. The apparatus of claim 1, wherein the sensor is an accelerometer.

3. The apparatus of claim 2, wherein the accelerometer is a toroidal accelerometer.

4. The apparatus of claim 1, wherein the sensor is a vibrational sensor.

5. The apparatus of claim 1, further comprising an audible indicator for indicating a presence of aircraft turbulence, wherein different audible indications are employed to provide a standardized indication of aircraft turbulence.

6. The apparatus of claim 1, wherein the adjustment circuit adjusts the data signal based on a weight of the aircraft and the change of weight in the aircraft during flight.

7. An apparatus for detecting turbulence in an aircraft comprising:

a sensor, wherein the sensor transmits a data signal in response to detecting turbulence;

a microprocessor coupled to the sensor, wherein the microprocessor includes means for detecting a data signal exceeding a threshold value and a means for adjusting the data signal based on the characteristics of the aircraft in which the apparatus is located; and

a display device coupled to the microprocessor, wherein the display device provides a standardized indication of aircraft turbulence.

8. The apparatus of claim 7, wherein the sensor is coupled to the microprocessor through an analog to digital converter, the analog to digital converter being connected to a data bus, and the data bus being connected to the microprocessor.

9. The apparatus of claim 7, wherein the sensor is an accelerometer.

10. The apparatus of claim 9, wherein the accelerometer is a toroidal accelerometer.

11. The apparatus of claim 7, wherein the sensor is a vibrational sensor.

12. The apparatus of claim 7, further comprising an audible indicator.

13. The apparatus of claim 7, wherein the means for adjusting the data signal based on the characteristics of the aircraft includes adjusting the data signal based on a change in weight of the aircraft during flight.

14. A method for detecting turbulence in an aircraft comprising:

detecting turbulence using a sensor and transmitting a data signal in response to detecting turbulence;

determining whether the data signal exceeds a threshold value;

adjusting the data signal based on the characteristics of the aircraft such that the data signal is standardized in response to the data signal exceeding a threshold value; and

displaying the adjusted data signal on a display device to provide a standardized indication of aircraft turbulence.