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Identification of Damage Mode of High-speed Impact Target Based on PVDF Piezoelectric Film

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (3)

As the space environment has deteriorated, it is necessary to monitor the impact events of space debris on orbiting spacecraft. The PVDF piezoelectric......

A Silicon 4 pi Spectrometer of beta-Decay Electrons with Energies of up to 3 MeV

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (2)

A 4 pi beta spectrometer consists of two Si(Li) detectors with a sensitive region that is more than 8-mm thick. Using this total-absorption spectromet......

Experimental Study on Temperature Distribution of a Wood Flame Using a Two-color Method

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (2)

In this paper, a two-color method to determine temperature distributions using color cameras was proposed. Based on Planck's Law, the relationship bet......

Investigation on Low Cost Optical Fiber Sensor Interrogator

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (5)

Optical fiber sensor is attracting more attention in the structural health monitoring of civil applications. A general interrogator which can be used ......

A Flexible Rayleigh Wave Transducer for Surface Cracks Detection on Heterogeneous Composite Explosives

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (3)

For heterogeneous explosives, it is of great importance to detect surface cracks to ensure structural integrity and reliability. With the advantages o......

High-throughput Double-mode Ultrasonic Micro-separator Based on 2D Normal Mode

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (3)

Two excitation methods based on 2D normal mode were proposed using two piezoelectric transducers (PZTs) with opposite phase and in-phase to excite the......

Experimental Validation of Monte Carlo Simulation for the Leksell Gamma Knife Perfexion Using Gafchromic EBT3 Dosimetry Film and Diamond Detector T60019 PTW

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (1)

This work presents experimental measurements performed using GAFChromic EBT3 dosimetry film and diamond detector T60019 to validate penEasy Monte Carl......

Simultaneous Measurement of Three-Dimensional Displacement Gradients Using Tri-color Digital Shearography

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (1)

A tri-color Michelson-type spatial phase-shift digital shearography is introduced to measure three displacement gradients, including one out-of-plane ......

An Inertial-Type Acoustic Vector Sensor Used in Airborne Sonobuoy

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (1)

An inertial-type acoustic vector sensor (AVS) prototype used as an acoustic directional receiver in the airborne sonobuoy was designed, fabricated and......

A Novel Method for Evaluation of Surface Breaking Crack Using Position-Time Graph

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (1)

A large plate like structures can undergo some severe ruptures because of the stress created by the mass and shape. Ruptures are regularly started by ......

The Influence of the Choice of a Gaussian Filter on the Determination of Areal Surface Texture Parameters

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2021; 64 (1)

The areal Gaussian filtering is the current standardized approach for the separation of roughness and waviness components of a surface topography for ......

An Apparatus for Research on Processes of Selective Laser Sintering of Powder Materials with High Spatial Resolution

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2020; 63 (2)

An apparatus for selective laser sintering of micron and submicron fraction powders is described. The apparatus allows studies with small volumes of p......

Development of a Two-Dimensional Thermal-Neutron Detector with an Entrance Window of 600 x 600 mm

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2020; 63 (5)

A two-dimensional thermal-neutron detector developed for a small-angle diffractometer by the Petersburg Nuclear Physics Institute is described. The de......

Research of SAW Temperature and Pressure Dual Parameter Measuring Sensor Based on Delay Line Type

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2020; 63 (5)

Surface acoustic wave (SAW) temperature and pressure sensors have been rapidly developed. A surface acoustic wave sensor with a dual-port delay line s......

Plasma Profiles Modifications by Upgraded Power of IBW Heating System in HT-7 Tokamak

期刊: INSTRUMENTS AND EXPERIMENTAL TECHNIQUES, 2020; 63 (5)

The enhancement in local and globalized electron heating has been observed after upgrading of ion Bernstien waves (IBWs) heating system in HT-7 tokama......

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