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People > Engineer Specialist > Curriculum Vita
The main function of this GLT instrument (CAB-A11) is to down-convert the input 4-8GHz IF signal from the receiver to 50MHz and output to vector voltmeter for phase calculation with the reference 50MHz that derive from hydrogen maser. It has to cooperate with another GLT custom instrument: the Signal Test Source Reference Module (CAB-A1). The CAB-A11 also equip two continuum detectors (for LHC, RHC) to detect the input power and feed into the CDC (continuum detector computer) located far away via a VTF board (convert the voltage to the frequency)
GLT custom instrument for Rx phase stability monitor and continuum detection
The cryostat chamber mounted on an alumina holding structure (The dewar frame) shown in the center of the picture. Except for few instruments fixed on the dewar frame, most frontend hardware is installed into 36U height rack that locates on dewar left and right side. The vacuum pump sits under the dewar with long bellow pipe connect to the dewar chamber.
GLT Frontend System
Cleaned SZE images of clusters observed by seven-element AMiBA. The white circles indicate the half-maximum contour of the primary beam (the field of view; 23'), and the blue patches at the bottom-right corners show the half-maximum regions of the dirty beams (~6').
The first SZE signal with the 7-element AMiBA
Nutating subreflector in the laboratory at ASIAA.
Nutating subreflector in the laboratory at ASIAA
Installation of the first ALMA nutator in Chile. January 2013
Installation of the nutating secondary subreflector on an ALMA antenna for the site acceptance test
The AMiBA receiver with the vacuum chamber removed (Chen et al., 2009, ApJ, 694, 1664).
The AMiBA receiver with the vacuum chamber removed
First ALMA nutator on a N.A. antenna, january 2013
ALMA nutator SAT
One of our new initiatives is to find a new site for submillimeter telescope. Such effort needs a long-term monitoring of the sky transparency in radio wavelength. In February 2011, ASIAA personnel, Pierre Martin-Cocher deployed the 225-GHz radiometer to PEARL camp in Nunavut, Canada.
ASIAA radiometer in Eureka, Canada
Retrofitting one of the ALMA prototype antennas for the use of VLBI in submillimeter wavelength. This picture shows the preliminary inspection of the antenna in July 2011, at the site of the Very Large Array near Socorro, New Mexico. This effort is led by ASIAA personnel, Philippe Raffin, Ted Huang, and Pierre Martin-Cocher, in collaboration with the engineers from Aeronautical Research Laboratory.
Retrofitting one of the ALMA prototype antennas for the use of VLBI in submillimeter wavelength
The 225 GHz ASIAA radiometer has been surveying the atmospheric clarity on the Greenland ice sheet since the summer of 2011. It has provided us the precious data regarding the submillimeter transmission for the GLT project.
ASIAA Radiometer in Greenland
Martin-Cocher, Pierre
SMA Electrical Engineer
photo of Martin-Cocher, Pierre
Office: ASMAB 1031
TEL: +886-2-2366-5375
FAX: +886-2-2367-7849
Email: pierre_replace2@_asiaa.sinica.edu.tw

Education and Positions

  • lab rat (1998~present)
  • Electronic engineer, MRAO, Cavendish labs, U.K. (1996~1997)
  • Electronic Technician, IRAM, France (1991~1995)
  • Instrumentation Technician, S.K.F., France (1989~1991)
  • Instrumentation Technician, C.E.R.G., France (1989)
  • M.S, Electronics, C.N.A.M, Paris, France (1997)
  • B.S, Electronics, C.N.A.M, Grenoble France (1991)
  • B.S, Instrumentation, Universite Joseph Fourier, France (1988)

Research Interests

Electronic Engineering, Instrumentation.

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TEL: 886-2-3365-2200 FAX: 886-2-2367-7849
General: asiaa_replace2@_asiaa.sinica.edu.tw Media Request: epo_replace2@_asiaa.sinica.edu.tw
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