purchase of lab equipments for mechanical engineering department -2 digital laser holography system consisting of laser head, stainless steel bread board, digital camera and digital holography software specifications 1. laser head na. type: diode pumped solid state laser ( dpss laser ) nb. laser power: 20mw nc. laser wave length: 532nm nd. minimum image processing area: 1024×1024 pixel n ( including high voltage power supply, control electronics and accessory cables ) n2. stainless steel bread board with magnetic steel top skin na. size: 90cm×60 cm n3. digital camera with digital holography software na. camera resolution: 3856×2764 pixel array nb. pixel size: 1.67 μm n 3 thermocouple wire welder specifications a. type: capacitor discharge nb. input power supply: 16a, 220v ac, 50hz nc. energy output: 60 joules ( maximum ) nd. welding capacity: nlow: 40swg – 30swg thermocouple wire ( 0.1-0.3mm ) nmedium: 30swg – 24swgthermocouple wire ( 0.3-0.5mm ) nhigh: 24swg – 19swg thermocouple wire ( 0.5-1.1 mm ) nd. cycle time: charging time at max. energy less than 10 sec ne. weld cycle: minimum 5 – 10 welds / min nf. suitable for thermocouple type : k, j, e, t, n, r, s, b n n 4 regulated dc power supply specifications a. dc out power: 600w nb. output voltage: 0-120v nc. output current: 0-5 a nd. input power supply: 16a, 250 v, 50 hz ne. time delay: 7 sec maximum from power on until output stable nf. output noise: nvoltage: less than 45mv peak to peak ng. output ripple ( rms ) nvoltage: less than 10mv ncurrent: less than 10ma n