New Volume Change Mechanism Using Metal Bellows for Buoyancy Control Device of Underwater Robots

Table 1

Electrical condition of nichrome wire and peltier device.

		Voltage (V)	Current (A)
Without heat sink	Nichrome wire	36	1.2
	Peltier device	6.3	2.3
With heat sink	Nichrome wire	33	1.3
	Peltier device	6.3	2.2