An input device for controlling buoyancy includes a means to control a second rate. The first input mechanism 81 may be used to select the second rate. It may also serve as a rate switch. Or, the second rate can be chosen by bypassing first-selected rate. Depending on the circumstance, a buoyancy controller device could include several features. One embodiment of a buoyancy control device includes a buoyancy tank as well as a weight belt.
Weight belts
Although the centre buoyancy of a diver may be out of the diver’s control, it is possible to adjust the suit’s weight and position on the cylinder. Additionally, divers may have the option to use weight belts or integrate BC weights to increase their control over their buoyancy. These buoyancy control devices can be worn at the waist, above your hips, and below your knees to give you a neutral trim.
Dump valves
A BCD has two separate ways to control your buoyancy. Either you can completely deflate your air bladder or add air to refresh it. Dump valves can be attached to a string to regulate the level of air. A majority of BCDs have at least one dump valve on each shoulder. To maintain comfortable buoyancy while diving, the dump valves allow you to inflate the air bladder.
Jacket-style buoyancy control device
You may be a beginner or an experienced diver and want to get a jacket-style buoyancy controller device (BCD). BCDs come in many sizes and can be worn comfortably over swimsuits. Some models are equipped with rear trim pockets and front weight pockets. The jacket-style BCD features a cushioned back, which makes it comfortable to wear and allows you adjust its buoyancy gauges easily.
Attachment systems in BC
A BC vest is a type that scuba divers use to keep buoyant and prevent from sinking. A BC is designed to hold the diver and SCUBA tank securely in place. BCDs have similar functions, but they may vary in their design. It is vital to understand how your BC works and what to do in the case of an error.
Changing depth is controlled by pneumatic valves
Pneumatic valves form the heart of many industrial processes. They regulate fluid flow using a force-balance principle. A pneumatic device has three ports. There is an air supply, a control signals output, and an exit. The device to be controlled is located above a lever arm. It has a flexible diaphragm, which changes the pressure when an external sensor moves it. The sensor's pressure increases and the left end lifts the lever arm to open the supply air valve. The controlled device will move when there is more pressure.