Background
Hazen, Harold Locke was born on August 1, 1901 in Philo, Illinois, United States. Son of Wirt Mandeville and Elta Belle (Brewer) Hazen.
Hazen, Harold Locke was born on August 1, 1901 in Philo, Illinois, United States. Son of Wirt Mandeville and Elta Belle (Brewer) Hazen.
Bachelor of Science, Massachusetts Institute Technology, 1924, South.M. Entertainment, 1929, Doctor of Science, 1931.
He contributed to the theory of servomechanisms and feedback control systems In 1924 under the lead of Vannevar Bush, Hazen and his fellow undergraduate Hugh H. Spencer built a prototype Air Corps network analyzer, a special-purpose analog computer for solving problems in interconnected Air Corps power systems Hazen also worked with Bush over twenty years on such projects as the mechanical differential analyzer
He went to Massachusetts Institute of Technology (Massachusetts Institute of Technology) as an undergraduate student in 1920.
When he graduated from Massachusetts Institute of Technology in 1924, he briefly worked for General Electric.
In 1925 he returned to Massachusetts Institute of Technology as research assistant and instructor in 1926. he obtained his Master"s degree in 1929 and his Doctor of Science degree in 1931. In 1934 Hazen published two papers on the theory and design of servomechanisms which provided clear descriptions of the operation of servos and a design methodology.
After 1937 Hazen became increasingly involved in teaching and administrative work, becoming Head of Department in 1938 and serving for fourteen years. From December 1942 until 1946 he was head of Division 7, "Fire Control", of the National Defense Research Committee (National Defence Research Committee).
In 1952 he became Dean of the Massachusetts Institute of Technology Graduate School until his retirement in 1967.
In his later life Doctor Hazen promoted engineering education programs both in the United States and internationally. Harold Hazen died in Belmont, Massachusetts, in February 1980.
Member of the United States Naval Weapons Laboratory advisory council, 1953-1965. Served as Second lieutenant Air Service, 1924-1929. Fellow I.E.E.E. (life), American Academy Arts and Sciences (council), Franklin Institute (life).
Member American Society Engineering Education (life.
Married Katherine Pharis Salisbury, September 5, 1928. Children: Stanley Seamans, Martha Locke (Mistress William Liller), Nathan Lord, Anne Webb (Mistress John G. Bowen).