Test Chambers Articles

  • CDS-5: A Mayo Clinic and Thermotron Collaboration case study

    Cytogenetic testing is used for the diagnosis of many genetic disorders including congenital (prenatal and adult) and hematologic/oncologic disorders. Processing of these tests used to be labor-intensive with unpredictable test data. That’s why the Cytogenetic Laboratory at Mayo Clinic and Thermotron joined forces to increase the efficiency of cytogenetic test processing with the invention ...

    By Thermotron Industries

  • Alteration of hydration absorption features in reflectance spectra of selected sulfates in a low pressure environment: 0.45-4.3 μm

    Introduction: Spectral reflectance properties from. 0.45 to 4.3 μm have been investigated for a number of. mineral samples. Eight mineral samples were placed. in one of the environmental simulation chambers in the. University of Winnipeg’s spectroscopy lab [1,2]. The. eight samples and two standards spent 38 days in the. chamber. Of the eight samples (three silicates, two. carbonates and ...

    By D&P Instruments, Inc

  • A Thermally Controlled Test Chamber for Centrifuge and Laboratory Experiments

    This note describes a novel approach for the provision of a thermally controlled testing chamber. The main principal of the system is to use a layer of cooled air as an active insulation medium to convect away heat transferred through conventional passive insulation. Results from laboratory floor and centrifuge tests are reported. Observed and predicted performance capabilities of the chamber are ...

    By ASTM International

  • Tests on Model Jacked Piles in Calcareous Sand

    This paper presents the results of a series of displacement-controlled cyclic axial loading tests of model jacked piles in dry calcareous sand. The tests were conducted using a large test facility comprising a test chamber 1.0 m in internal diameter and 1.55 m in height. Model instrumented aluminum jacked piles 50 and 100 mm in diameter were used to investigate scale effects on the degradation of ...

    By ASTM International

  • Influence of Test Chamber Boundary Conditions on Sand Bed Response

    Two series of tests were performed on calcareous and silica sands in different test chamber sizes and with different base conditions to investigate the influence of test chamber boundary conditions on model pile foundation behavior.The first series of tests investigated the effects of shear resistance between the soil and the internal wall of the test chamber upon the distribution of vertical ...

    By ASTM International

  • A Clay Calibration Chamber for Testing Field Devices

    This paper describes the design of a calibration chamber suitable for the preparation of uniform clay beds in which the performance of full-size field test devices may be studied. Details are given of the clay bed preparation procedure by which clay slurry is initially consolidated under K0 conditions and then further conso using equal or unequal horizontal and vertical stresses. Field equipment ...

    By ASTM International

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