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As observed by [[Hendrik Casimir]], "Radio might have remained a field of haphazard empiricism along with wild commercial ventures, but for the influence of men like Van der Pol who stressed the need for a more scientific approach."<ref>[[Hendrik Casimir]] (1960) "Introduction" to ''Balthasar van der Pol: Selected Scientific Papers'', [[North-Holland (imprint)|North-Holland]]</ref>
As observed by [[Hendrik Casimir]], "Radio might have remained a field of haphazard empiricism along with wild commercial ventures, but for the influence of men like Van der Pol who stressed the need for a more scientific approach."<ref>[[Hendrik Casimir]] (1960) "Introduction" to ''Balthasar van der Pol: Selected Scientific Papers'', [[North-Holland (imprint)|North-Holland]]</ref>


The [[differential equation]]s of coupled electrical systems drew his interest, and he developed the idea of "relaxation oscillations".<ref>B. van der Pol (1926) "On relaxation-oscillations", ''Philosophical Magazine'' 2: 978–92</ref><ref>Jean-Marc Ginoux (2012) "Van der Pol and the history of relaxation oscillations: Toward the emergence of a concept", [[Chaos (journal)|Chaos]] 22 {{doi|10.1063/1.3670008}}</ref> With J. van der Mark he applied the idea to the [[Cardiac cycle|heartbeat]].<ref>B. van der Pol and J. van der Mark (1929) "The heartbeat considered as a relaxation-oscillation, and an electrical model of the heart", ''Philosophical Magazine'' 6: 673–75</ref> which provided one of the earliest [[quantitative models of the action potential]]. These studies led him to the [[van der Pol equation]] and [[Oliver Heaviside]]’s [[operational calculus]] for dealing with differential equations. He submitted articles to ''Philosophical Magazine'' on the operational calculus and, in coordination with H. Bremmer, wrote ''Modern Operational Calculus based on the Two-sided Laplace Integral'', published by Cambridge University Press.
The [[differential equation]]s of coupled electrical systems drew his interest, and he developed the idea of "relaxation oscillations".<ref>B. van der Pol (1926) "On relaxation-oscillations", ''Philosophical Magazine'' 2: 978–92</ref><ref>Jean-Marc Ginoux (2012) "Van der Pol and the history of relaxation oscillations: Toward the emergence of a concept", [[Chaos (journal)|Chaos]] 22 {{doi|10.1063/1.3670008}}</ref> With J. van der Mark he applied the idea to the [[Cardiac cycle|heartbeat]],<ref>B. van der Pol and J. van der Mark (1929) "The heartbeat considered as a relaxation-oscillation, and an electrical model of the heart", ''Philosophical Magazine'' 6: 673–75</ref> which provided one of the earliest [[quantitative models of the action potential]]. These studies led him to the [[van der Pol equation]] and [[Oliver Heaviside]]’s [[operational calculus]] for dealing with differential equations. He submitted articles to ''Philosophical Magazine'' on the operational calculus and, in coordination with H. Bremmer, wrote ''Modern Operational Calculus based on the Two-sided Laplace Integral'', published by Cambridge University Press.


He was awarded the [[Institute of Radio Engineers]] (now the [[Institute of Electrical and Electronics Engineers|IEEE]]) [[IEEE Medal of Honor|Medal of Honor]] in 1935. The [[asteroid]] [[10443 van der Pol]] was named after him.
He was awarded the [[Institute of Radio Engineers]] (now the [[Institute of Electrical and Electronics Engineers|IEEE]]) [[IEEE Medal of Honor|Medal of Honor]] in 1935. The [[asteroid]] [[10443 van der Pol]] was named after him.

Revision as of 18:46, 26 October 2020

Balthasar van der Pol
Utrecht
Died6 October 1959(1959-10-06) (aged 70)
Wassenaar
NationalityDutch
Alma materUtrecht University
Known forVan der Pol oscillator
Awards
Scientific career
FieldsPhysics
Thesis (1920)
Doctoral advisorWillem Henri Julius
In this Dutch name, the surname is Van der Pol, not Pol.

Balthasar van der Pol (27 January 1889 – 6 October 1959) was a Dutch physicist.

Van der Pol began his studies of physics in

Philips Research Laboratories
in 1921, where he worked until his retirement in 1949.

As observed by Hendrik Casimir, "Radio might have remained a field of haphazard empiricism along with wild commercial ventures, but for the influence of men like Van der Pol who stressed the need for a more scientific approach."[3]

The

van der Pol equation and Oliver Heaviside’s operational calculus
for dealing with differential equations. He submitted articles to Philosophical Magazine on the operational calculus and, in coordination with H. Bremmer, wrote Modern Operational Calculus based on the Two-sided Laplace Integral, published by Cambridge University Press.

He was awarded the

10443 van der Pol
was named after him.

Van der Pol became member of the Royal Netherlands Academy of Arts and Sciences in 1949.[7]

Works

  • 1928: (with J van der Mark) The Heartbeat considered as a Relaxation oscillation, and an Electrical Model of the Heart. Phil. Mag. Suppl. No. 6 pp 763–775
  • 1947: An electro-mechanical investigation of the Riemann zeta function in the critical strip,
    MR0022712
  • 1964: (with H. Bremmer) Operational Calculus Cambridge University Press
  • 1960: Selected Scientific Papers,
    North-Holland
    Two volumes

References

  1. ^ B. van der Pol (1917) "A note on the relation of the audibility factor of a shunted telephone to the antenna circuit as used in the reception of wireless signals", Philosophical Magazine 34: 184–8
  2. ^ De invloed van een geioniseerd gas op het voortschrijden van electromagnetische golven en toepassingen daarvan op het gebied der draadlooze telegraphie en bij metingen van glimlichtontladingen
  3. North-Holland
  4. ^ B. van der Pol (1926) "On relaxation-oscillations", Philosophical Magazine 2: 978–92
  5. doi:10.1063/1.3670008
  6. ^ B. van der Pol and J. van der Mark (1929) "The heartbeat considered as a relaxation-oscillation, and an electrical model of the heart", Philosophical Magazine 6: 673–75
  7. ^ "Balthasar van der Pol (1889 - 1959)". Royal Netherlands Academy of Arts and Sciences. Retrieved 3 August 2015.
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