A leak detection system includes a testing interface, which includes a rotation holder configured to retain and rotate a package. The testing interface includes a plunger apparatus configured to actuate a plunger to apply a pressure to the package before and/or during the package being inspected using a high voltage leak detection (HVLD) apparatus. The testing interface also includes a controller configured to operate and coordinate the operation of the testing interface with operation of the HVLD apparatus.

The present invention provides a gas leakage sensing device comprising a gas conduit, a liquid storage tank and a bubble sensing component. The gas conduit guides leaking gas from industrial equipment into a liquid in the liquid storage tank through an exhaust port and generates bubbles. A monitoring part with a bubble sensing component is formed on the tank wall of the liquid storage tank, the height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface. By sensing the size, amount of generated bubbles, and floating frequency of the bubbles generated in the liquid, the flow rate and volume of the leaking gas are obtained to improve the accuracy of sensing the leaking gas.

A method of sensing leaking gas includes controlling the height of a gas injection port in the liquid away from the liquid surface to guide the leaking gas into the liquid through the gas injection port to generate bubbles, and detecting the flow rate of the bubbles generated in the liquid to improve the sensing accuracy of leaking gas.

The present invention provides a gas leakage sensing device comprising a gas conduit, a liquid storage tank and a bubble sensing component. The gas conduit guides leaking gas from industrial equipment into a liquid in the liquid storage tank through an exhaust port and generates bubbles. A monitoring part with a bubble sensing component is formed on the tank wall of the liquid storage tank, the height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface. By sensing the size, amount of generated bubbles, and floating frequency of the bubbles generated in the liquid, the flow rate and volume of the leaking gas are obtained to improve the accuracy of sensing the leaking gas.

An on-line wheel airtightness detecting device where a centering device centers a wheel above a roller bed, and a sixth cylinder causes arms to drive clamping jaws through a second gear, second racks, and fifth guide rails to clamp the wheel; a servo motor turns the wheel 90; a fifth cylinder drives the wheel to a support roller through a fourth guide rail; a second cylinder drives the wheel through first guide pillars; a first cylinder drives the wheel through a first guide rail and flush with a right rubber disc; the hydraulic cylinder drives a left rubber disc through second guide pillars; a motor drives a hollow shaft and the wheel to rotate through a small pulley, a large pulley and a synchronous belt; and compressed air is charged into the hollow shaft, to detect air tightness.

An on-line wheel airtightness detecting device where a centering device centers a wheel above a roller bed, and a sixth cylinder causes arms to drive clamping jaws through a second gear, second racks, and fifth guide rails to clamp the wheel; a servo motor turns the wheel 90; a fifth cylinder drives the wheel to a support roller through a fourth guide rail; a second cylinder drives the wheel through first guide pillars; a first cylinder drives the wheel through a first guide rail and flush with a right rubber disc; the hydraulic cylinder drives a left rubber disc through second guide pillars; a motor drives a hollow shaft and the wheel to rotate through a small pulley, a large pulley and a synchronous belt; and compressed air is charged into the hollow shaft, to detect air tightness.

A leak detection system includes a testing interface, which includes a rotation holder configured to retain and rotate a package. The testing interface includes a plunger apparatus configured to actuate a plunger to apply a pressure to the package before and/or during the package being inspected using a high voltage leak detection (HVLD) apparatus. The testing interface also includes a controller configured to operate and coordinate the operation of the testing interface with operation of the HVLD apparatus.

An on-line wheel airtightness detecting device where a centering device centers a wheel above a roller bed, and a sixth cylinder causes arms to drive clamping jaws through a second gear, second racks, and fifth guide rails to clamp the wheel; a servo motor turns the wheel 90; a fifth cylinder drives the wheel to a support roller through a fourth guide rail; a second cylinder drives the wheel through first guide pillars; a first cylinder drives the wheel through a first guide rail and flush with a right rubber disc; the hydraulic cylinder drives a left rubber disc through second guide pillars; a motor drives a hollow shaft and the wheel to rotate through a small pulley, a large pulley and a synchronous belt; and compressed air is charged into the hollow shaft, to detect air tightness.

An on-line wheel airtightness detecting device where a centering device centers a wheel above a roller bed, and a sixth cylinder causes arms to drive clamping jaws through a second gear, second racks, and fifth guide rails to clamp the wheel; a servo motor turns the wheel 90; a fifth cylinder drives the wheel to a support roller through a fourth guide rail; a second cylinder drives the wheel through first guide pillars; a first cylinder drives the wheel through a first guide rail and flush with a right rubber disc; the hydraulic cylinder drives a left rubber disc through second guide pillars; a motor drives a hollow shaft and the wheel to rotate through a small pulley, a large pulley and a synchronous belt; and compressed air is charged into the hollow shaft, to detect air tightness.

An imaging scope includes an internal surface defining an internal cavity, a window permitting visual inspection of the internal cavity, a fluid in the internal cavity having a pressure different than ambient pressure, and a leak indicator transitionable between nonvisible and visible through the window when the pressure of the fluid changes toward ambient pressure.