Post by ken-ken on Jun 7, 2005 17:12:37 GMT 8
Understanding an AEG
For those who have never played Airsoft (survival game), when they first see the Airsoft Electric Gun (AEG), they will ask “Is it a real firearm?” “Does it harm people?.........
For those who have never played Airsoft (survival game), when they first see the Airsoft Electric Gun (AEG), they will ask “Is it a real firearm?” “Does it harm people?” Also, there are a lot negative issues show that the AEG can be redeveloped on news to mistaken and given the wrong concept to the public; furthermore, the public will consider AEG equals redevelopment toy gun. Therefore, to let everyone know the operational principle of AEG, we have listed descriptions as followed to clarify the differences between firearm and AEG. Also, we want to promote Airsoft to everywhere in the world and let it become a favorite and popular sport.
Airsoft Electric Gun, AEG, it seems like the firearm, but its operational principle is totally different than the firearm. AEG operates by a battery and provides electrical power to motor to drive gear set. While gear set is driven by motor, the piston is driven backwards by gears and the spring in the piston provides backwards tension at the same time. Use the air inside the cylinder and the tension in the piston to push the elevated BBs out of barrel. In the other hand, firearm operates by firing pin to hit the percussion cap of a bullet.
The gear box mainly comprises a miter gear, a reduction gear, and a half-toothed gear sequentially rotated by a motor to drive the piston device. The half-toothed gear has a periphery, multiple teeth partially formed on the periphery, and an idle area formed on a remainder of the periphery. Thereby, when the teeth engage with the toothed rack to run with the half-toothed gear, the piston device is driven to a compressed condition . When the trigger is pulled, the trigger will be pushed against the switch. The switch is accommodated at the front end inside the gear box and composed of a movable block and a stationary block. When the trigger is pulled to make the upper abutting block push the movable block, the moveable block moves forward to touch the stationary block to achieve an electrical connection. Then, the electrical motor is activated to drive the gear set and drive the piston closer to the rear end of the upper gear box to compress the spring. When the half-toothed gear enters the idle area, the piston is released to punch a projectile.
Formulas used when Calculating Battery Specifications
Amperes
Amperes = Volts/Ohms
Amperes = Watts/Volts
Amperes = Square Root of (Watts/Ohms)
Ohms
Ohms = Volts/Amperes
Ohms = (Volts*Volts)/Watts
Ohms = Watts/(Amperes*Amperes)
Volts
Volts = Volts/(Square Root of (Watts*Ohms))
Volts = Watts/Amperes
Volts = Amperes*Ohms
Watts
Watts = (Volts*Volts)/Ohms
Watts = (Amperes*Amperes)*Ohms
Watts = Volts*Amperes
Battery:
The higher the mAh, the longer the battery will last.
The higher the voltage, the higher the rate of fire. If you really want to be a support player, get a 9.6v 2000mAh or higher battery. A 10.8v battery with a totally reinforced gearbox will have a rate of fire that looks like a solid line of bb's. By Using a 10.8v battery you will put one heck of a strain on your gears, motor, and gearbox.
(at your own risk)
Rate of Fire: The higher the voltage the higher the rate of fire.
Nicad - Nickel Cadmium:
Nicad batteries are the single most popular rechargeable batteries in the world. It is important that you discharge these batteries before charging them, or they will lose their capacity and you will get less run-time in-between charges. This is often referred to as the “Memory Effect”. It is also very important that you recycle these batteries because nickel cadmium is toxic and harmful for the environment. Nicad are great for low drain devices such as stock airsoft replicas or upgrades that are shooting at less than 350 fps.
NiMh - Nickel Metal Hydride:
NiMh is the newest battery chemistry available. The Ni-MH batteries have higher capacities than Ni-Cd batteries and are not affected by the “Memory Effect”. They are more expensive than Ni-Cd batteries, however they will last longer than Ni-Cd batteries in-between chargers, and will therefore have a longer life span. NiMh are great for high drain devices such as airsoft replicas that have been upgraded to 350 fps or higher.
Capacity
The maximum amount of stored eneregy that a battery can supply the rated voltage for. Measured in Milliamp Hours (mAh). Upgrade guns require a higher capacity.
Cell A single chemical energy holder encased in a metal canister.
Charge
The process of putting electrical energy into a pack of cells and the cells converting the electical energy into chemical energy.
Chargers
An electrical device that is used to put current into a battery pack to achieve the maximum voltage and mAh rating of that particular packs maximum voltage and mAh rating.
Conditioning
The process of charging and discharging a pack to achieve maximum battery capacity. Think of this as setting the upper and lower limits on the batteries. NiMH packs do not require conditioning, only Nicad ones do.
Discharge Rate
The rate at which a cell can convert chemical energy into electrical energy. Upgrade guns require a higher Discharge Rate.
Dischargers
A power draining source that takes the stored energy out of your battery pack. This must be controled. Over discharging will drain cells so low that they can not be recharged.
Heat
When charging a battery pack, it may become warm to the touch, a little warm is ok. However, when a battery pack becomes very warm, or even hot to touch you have have just overheated your battery pack. This is the number one killer of battery packs. DO NOT let your battery packs become hot, you are only killing the pack.
Life Cycle
The number of times a battery pack can be charged and discharged before it must be replaced.
Memory Effect
Only applies to Nicad batteries. When Nicad batteries are not fully charged or discharged they build up a memory. Simply put - Instead of using the full capacity of the battery a memory shortens the amount of potential stored energy that the battery can hold, thus reducing the run time and the voltage. This occures when Nicad batteries are not fully discharged after each use and are not properly charged to full capacity during the charging cycle.
Milliamp Hours (mAh)
mAh determines the amount of energy that a battery can store. A 1000 mAh battery has less stored energy than a 2700 mAh battery. The higher the mAh the longer the battery will last. Upgrade guns require a higher mAh.
Self-Discharge
Batteries that are not used for 1 - 2 months will loose their charge by just sitting on the shelf. Even after 1 week a battery will have a measurable discharge without even being used. You should always charge your batteries before going out to play airsoft. Discharge them first if you have a Nicad battery pack.
For those who have never played Airsoft (survival game), when they first see the Airsoft Electric Gun (AEG), they will ask “Is it a real firearm?” “Does it harm people?.........
For those who have never played Airsoft (survival game), when they first see the Airsoft Electric Gun (AEG), they will ask “Is it a real firearm?” “Does it harm people?” Also, there are a lot negative issues show that the AEG can be redeveloped on news to mistaken and given the wrong concept to the public; furthermore, the public will consider AEG equals redevelopment toy gun. Therefore, to let everyone know the operational principle of AEG, we have listed descriptions as followed to clarify the differences between firearm and AEG. Also, we want to promote Airsoft to everywhere in the world and let it become a favorite and popular sport.
Airsoft Electric Gun, AEG, it seems like the firearm, but its operational principle is totally different than the firearm. AEG operates by a battery and provides electrical power to motor to drive gear set. While gear set is driven by motor, the piston is driven backwards by gears and the spring in the piston provides backwards tension at the same time. Use the air inside the cylinder and the tension in the piston to push the elevated BBs out of barrel. In the other hand, firearm operates by firing pin to hit the percussion cap of a bullet.
The gear box mainly comprises a miter gear, a reduction gear, and a half-toothed gear sequentially rotated by a motor to drive the piston device. The half-toothed gear has a periphery, multiple teeth partially formed on the periphery, and an idle area formed on a remainder of the periphery. Thereby, when the teeth engage with the toothed rack to run with the half-toothed gear, the piston device is driven to a compressed condition . When the trigger is pulled, the trigger will be pushed against the switch. The switch is accommodated at the front end inside the gear box and composed of a movable block and a stationary block. When the trigger is pulled to make the upper abutting block push the movable block, the moveable block moves forward to touch the stationary block to achieve an electrical connection. Then, the electrical motor is activated to drive the gear set and drive the piston closer to the rear end of the upper gear box to compress the spring. When the half-toothed gear enters the idle area, the piston is released to punch a projectile.
Formulas used when Calculating Battery Specifications
Amperes
Amperes = Volts/Ohms
Amperes = Watts/Volts
Amperes = Square Root of (Watts/Ohms)
Ohms
Ohms = Volts/Amperes
Ohms = (Volts*Volts)/Watts
Ohms = Watts/(Amperes*Amperes)
Volts
Volts = Volts/(Square Root of (Watts*Ohms))
Volts = Watts/Amperes
Volts = Amperes*Ohms
Watts
Watts = (Volts*Volts)/Ohms
Watts = (Amperes*Amperes)*Ohms
Watts = Volts*Amperes
Battery:
The higher the mAh, the longer the battery will last.
The higher the voltage, the higher the rate of fire. If you really want to be a support player, get a 9.6v 2000mAh or higher battery. A 10.8v battery with a totally reinforced gearbox will have a rate of fire that looks like a solid line of bb's. By Using a 10.8v battery you will put one heck of a strain on your gears, motor, and gearbox.
(at your own risk)
Rate of Fire: The higher the voltage the higher the rate of fire.
Nicad - Nickel Cadmium:
Nicad batteries are the single most popular rechargeable batteries in the world. It is important that you discharge these batteries before charging them, or they will lose their capacity and you will get less run-time in-between charges. This is often referred to as the “Memory Effect”. It is also very important that you recycle these batteries because nickel cadmium is toxic and harmful for the environment. Nicad are great for low drain devices such as stock airsoft replicas or upgrades that are shooting at less than 350 fps.
NiMh - Nickel Metal Hydride:
NiMh is the newest battery chemistry available. The Ni-MH batteries have higher capacities than Ni-Cd batteries and are not affected by the “Memory Effect”. They are more expensive than Ni-Cd batteries, however they will last longer than Ni-Cd batteries in-between chargers, and will therefore have a longer life span. NiMh are great for high drain devices such as airsoft replicas that have been upgraded to 350 fps or higher.
Capacity
The maximum amount of stored eneregy that a battery can supply the rated voltage for. Measured in Milliamp Hours (mAh). Upgrade guns require a higher capacity.
Cell A single chemical energy holder encased in a metal canister.
Charge
The process of putting electrical energy into a pack of cells and the cells converting the electical energy into chemical energy.
Chargers
An electrical device that is used to put current into a battery pack to achieve the maximum voltage and mAh rating of that particular packs maximum voltage and mAh rating.
Conditioning
The process of charging and discharging a pack to achieve maximum battery capacity. Think of this as setting the upper and lower limits on the batteries. NiMH packs do not require conditioning, only Nicad ones do.
Discharge Rate
The rate at which a cell can convert chemical energy into electrical energy. Upgrade guns require a higher Discharge Rate.
Dischargers
A power draining source that takes the stored energy out of your battery pack. This must be controled. Over discharging will drain cells so low that they can not be recharged.
Heat
When charging a battery pack, it may become warm to the touch, a little warm is ok. However, when a battery pack becomes very warm, or even hot to touch you have have just overheated your battery pack. This is the number one killer of battery packs. DO NOT let your battery packs become hot, you are only killing the pack.
Life Cycle
The number of times a battery pack can be charged and discharged before it must be replaced.
Memory Effect
Only applies to Nicad batteries. When Nicad batteries are not fully charged or discharged they build up a memory. Simply put - Instead of using the full capacity of the battery a memory shortens the amount of potential stored energy that the battery can hold, thus reducing the run time and the voltage. This occures when Nicad batteries are not fully discharged after each use and are not properly charged to full capacity during the charging cycle.
Milliamp Hours (mAh)
mAh determines the amount of energy that a battery can store. A 1000 mAh battery has less stored energy than a 2700 mAh battery. The higher the mAh the longer the battery will last. Upgrade guns require a higher mAh.
Self-Discharge
Batteries that are not used for 1 - 2 months will loose their charge by just sitting on the shelf. Even after 1 week a battery will have a measurable discharge without even being used. You should always charge your batteries before going out to play airsoft. Discharge them first if you have a Nicad battery pack.
