초록 ▼

Embodiments of the inventive subject matter include a method and apparatus for performing a leak test. A fluid flows through a first aperture of a product and at least a portion of the fluid is allowed to exit the product through a second aperture while the fluid is flowing through the first apertur

Embodiments of the inventive subject matter include a method and apparatus for performing a leak test. A fluid flows through a first aperture of a product and at least a portion of the fluid is allowed to exit the product through a second aperture while the fluid is flowing through the first aperture. The second aperture is closed in response to determining that a first threshold parameter is reached. The first aperture is closed in response to determining that a second threshold parameter is met. Then, a leak test can be performed.

대표청구항 ▼

1. A method comprising: allowing fluid flow of a fluid into a product through a first aperture of the product via a first valve, wherein the product at least in part defines a volume under test;while the fluid is flowing through the first aperture, allowing at least a portion of the fluid to exit th

1. A method comprising: allowing fluid flow of a fluid into a product through a first aperture of the product via a first valve, wherein the product at least in part defines a volume under test;while the fluid is flowing through the first aperture, allowing at least a portion of the fluid to exit the product through a second aperture of the product via a second valve to remove heat created through adiabatic heating of the fluid;while the fluid is flowing through the first aperture and the second aperture, determining that a first threshold for a parameter of the volume under test is reached;in response to determining that the first threshold is reached, closing the second valve;determining that a second threshold for the parameter of the volume under test is reached;in response to determining that the second threshold is reached, closing the first valve;opening, after the closing of the first valve, a third valve, wherein the third valve controls fluid flow between the volume under test and a measuring apparatus; andperforming, by the measuring apparatus after the opening of the third valve, one or more leak test measurements on the volume under test. 2. The method of claim 1, further comprising keeping the first valve closed during the performing the one or more leak test measurements on the volume under test. 3. The method of claim 1, wherein the one or more leak test measurements include at least one of a pressure measurement, a flow measurement, a volume measurement, a temperature measurement, a force measurement, a torque measurement, and a density measurement. 4. The method of claim 1, wherein a fluid flow rate through the first aperture is greater than a fluid flow rate through the second aperture. 5. The method of claim 1, wherein the first threshold and the second threshold are any one of a time period, pressure, volume, mass flow, or volume flow. 6. The method of claim 1, wherein the first aperture comprises two or more independent apertures. 7. The method of claim 1, wherein the second aperture comprises two or more independent apertures. 8. The method of claim 1, further comprising: before closing the second valve, determining that a volume of fluid at least equal to a volume of the product has passed through the second aperture. 9. The method of claim 8, wherein the determining that a volume of fluid at least equal to a volume of the product has passed through the second aperture is based on a fluid flow rate through the second aperture and an elapsed time. 10. The method of claim 1, wherein the determining that the first threshold is reached and the second threshold is reached is based, at least in part, on a fluid flow rate through the first aperture, a fluid flow rate through the second aperture, and time elapsed. 11. One or more non-transitory machine-readable storage media, the one or more non-transitory machine-readable storage media having instructions stored therein, which when executed by one or more processors, cause the one or more processors to perform operations comprising: causing fluid to be introduced through a first aperture of a product via a first valve, wherein at least a portion of the fluid passes through the product and exits through a second aperture of the product via a second valve, wherein the product at least in part defines a volume under test; determining that a first threshold for a parameter of the volume under test is reached; in response to determining that the first threshold is reached, causing the second valve to close; determining that a second threshold for the parameter of the volume under test is reached; in response to determining that the second threshold is reached, causing the first valve to close; opening, after the first valve is closed, a third valve, wherein the third valve controls fluid flow between the volume under test and a measuring apparatus; and after the opening of the third valve, causing one or more leak test measurements to be performed by the measuring apparatus. 12. The one or more non-transitory machine-readable storage media of claim 11, the operations further comprising: keeping the first valve closed during performance of the one or more leak test measurements. 13. The one or more non-transitory machine-readable storage media of claim 11, wherein the one or more leak test measurements include at least one of a pressure measurement, a flow measurement, a volume measurement, a temperature measurement, a force measurement, a torque measurement, and a density measurement. 14. The one or more non-transitory machine-readable storage media of claim 11, wherein a fluid flow rate though the first aperture is greater than a fluid flow rate through the second aperture. 15. The one or more non-transitory machine-readable storage media of claim 11, wherein the first threshold and second threshold are any one of a time period, pressure, volume, mass flow, and volume flow. 16. The one or more non-transitory machine-readable storage media of claim 11, the operations further comprising: before the causing the second valve to close, determining that a volume of fluid at least equal to a volume of the product has passed through the second aperture. 17. The one or more non-transitory machine-readable storage media of claim 16, wherein the determining that a volume of fluid at least equal to a volume of the product had passed through the second aperture is based on a fluid flow rate through the second aperture and an elapsed time. 18. The one or more non-transitory machine-readable storage media of claim 11, wherein the determining that the first threshold is reached and the second threshold is reached is based, at least in part, on a fluid flow rate through the first aperture, a fluid flow rate through the second aperture, and time elapsed. 19. A leak testing apparatus for testing a product under test for leaks, the leak testing apparatus comprising: a fluid supply configured to provide fluid to the product under test via a first valve, wherein the product under test at least in part defines a volume under test; anda controller configured to: cause the fluid supply to provide fluid via the first valve to the product under test, and while the fluid is flowing to the product under test allowing at least a portion of the fluid to exit the product under test through a second valve;while the fluid is flowing to the product under test and exiting the product under test, determine that a first condition for the volume under test is met;in response to the determination that the first condition is met, cause the second valve to close;determine that a second condition for the volume under test is met;in response to the determination that the second condition is met, cause the first valve to close;after the first valve closes, cause a third valve to open, wherein the third valve controls fluid flow between the volume under test and a measuring apparatus; andafter the third valve opens, cause the measuring apparatus to perform a leak test measurement. 20. The apparatus of claim 19, wherein the controller is further configured to: keep the first valve closed during performance of the leak test measurement. 21. The apparatus of claim 19, wherein the measuring apparatus is one or more of a pressure sensor, a flow sensor, a temperature sensor, a volume sensor, a thermometer, and a timer and the leak test measurement is one or more of a pressure measurement, a flow measurement, a volume measurement, a temperature measurement, and a time measurement. 22. The apparatus of claim 19, wherein one or more of the first valve and the second valve include two or more valves. 23. The apparatus of claim 19, the controller further configured to: determine, before causing closing of the second valve, that at least a predefined volume of fluid has passed through the second valve.