The quality of graphene was analyzed through Raman spectroscopy (Alpha300M, Witec). The electrical properties of the single SBT, SIC, glucose/insulin sensor, and AS were evaluated using a Keithley 4200A‐SCS and vacuum probe station system. The real‐time output signals of ANC components were measured using a digital phosphor oscilloscope (DPO3052, Tektronix).
Dpo 3052
Manufactured by Tektronix
Sourced in United States
The DPO 3052 is a digital phosphor oscilloscope that provides a real-time analysis of electronic signals. It features a 500 MHz bandwidth and a sample rate of up to 2.5 GS/s, allowing for high-resolution capture and display of waveforms. The DPO 3052 is equipped with a 5.4-inch color display and offers a range of triggering options for versatile signal analysis.
Automatically generated - may contain errors
Lab products found in correlation
Afg3022, by Tektronix (2 mentions)
Escalab 250xi, by Thermo Fisher Scientific (2 mentions)
Alpha300m, by WITec (1 mentions)
Pcie 6351, by National Instruments (1 mentions)
Nano230, by Thermo Fisher Scientific (1 mentions)
Cary 5000, by Agilent Technologies (1 mentions)
4200a scs, by Tektronix (1 mentions)
Nano indenter g200, by Agilent Technologies (1 mentions)
Impedance analyzer, by Agilent Technologies (1 mentions)
Xe 100, by Park Systems (1 mentions)
Sr570, by Stanford Research Systems (1 mentions)
Model no sr570, by Stanford Research Systems (1 mentions)
Model sr570, by Stanford Research Systems (1 mentions)
12 protocols using dpo 3052
1
Graphene and Sensor Characterization
2
Characterization of Stretchable Conductor and Vibration Sensor
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The morphologies and thickness of the PEDOT:PSS embedded stretchable conductor and the nano-patterned dielectrics were investigated by using a Nano 230 field-emission scanning electron microscope (FEI, USA) at an accelerating voltage of 10 kV. Optical transmission measurements of the stretchable conductors were performed on ultraviolet–visible spectrophotometer (Cary 5000, Agilent) from 400 to 800 nm. The sheet resistances (Rs) of the stretchable conductors were measured using the four-point van der Pauw method with collinear probes (0.5 cm spacing) connected to a four-point probing system (CMT2000N, AIT). For the electrical measurement of the strain sensor unit, an external shear force was applied by a commercial linear mechanical motor (X-LSM 100b, Zaber Technologies) and a programmable electrometer (Keithley model 6514) was used to measure the open-circuit voltage and short-circuit current. For the vibration sensor unit, a Digital Phosphor Oscilloscope (DPO 3052, Tektronix) was used to measure the electrical output signals at the sampling rate of 2.5 GS/s. For the multi-channel sensing system, a DAQ system (PCIe-6351, NI) was used to simultaneously measure electrical output signals of multi-channel sensor units.
3
Characterization of Single-Fiber BA Sensor
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The surface morphologies of the single-fiber BA sensor were measured by a field emission scanning electron microscope (FE-SEM) (JEOL-7800F) in the secondary electron imaging mode with an accelerating voltage of 10 kV. EDS mapping of the fiber was performed using an Oxford Instruments Nanoanalysis unit attached to the FE-SEM. A bending simulation was performed using the SimScale Multiphysics simulation software with the 3D model used to fabricate the soft actuator mold for accurate simulation. The bending of the soft actuator was video-recorded on its side, and BAs were estimated by analyzing the recorded videos using the ImageJ PhotoBend plugin (51 (link)). A warm condition of 40°C was simulated by blowing hot air into a 50 cm by 50 cm by 70 cm acrylic box. A thermistor (NTSM-7, Boyuan) was attached to the side of the wall, and the temperature measurement unit was placed at the corner of the acrylic box. The electrical properties of the all devices were measured with a Keithley 4200A-SCS and Tektronix DPO3052 unit.
4
Evaluating STEG Performance under Sliding Friction
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Output performance of STEG was measured while the inner surface of the outer cylinder slides on the PFA film surface by applying a cyclic vertical force using pushing tester (ZPS-100, JUNIL TECH Co., Ltd., Seoul, Korea). The inner cylinder was fixed on the bottom stage and the outer cylinder was attached to the moving part, which periodically moved with a constant speed of 62.5, 140, and 200 mm/s, respectively, and the period was 0.4 s for all cases. During movement, the frictional force controlled by PE foam tape was measured using a force sensor installed in the pushing tester. The output voltage between two interdigitated electrodes was measured using an oscilloscope (DPO 3052, Tektronix, Beaverton, OR, USA) with an input impedance of 40 MΩ, and the output current was measured using a current amplifier (DLPCA-200, FEMTO, Berlin, Germany) connected to the oscilloscope under short circuit conditions. After 11,000 periodic movements with a frictional force of 0.6 kgf, the surface morphology of PFA film was examined using scanning electron microscopy (JSM-6701F, FE-SEM, Jeol Ltd., Mitaka, Tokyo, Japan) to check mechanical durability.
5
Characterization of PVDF-based Films
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The morphologies of PVDF-based films were further characterized by a field emission SEM. The dielectric constants of the PVDF-based films were measured by an impedance analyzer (Agilent) over the frequency range of 102 to 106 Hz at room temperature. A pushing tester (model no. ET-126-4, Labworks Inc.) was used to create vertical compressive strain in the TENG. A Tektronix DPO 3052 digital phosphor oscilloscope and a low-noise current preamplifier (model no. SR570, Stanford Research Systems Inc.) were used for electrical measurements. Nanoindentation tests were carried out at a constant indentation strain rate of 0.05 s−1, with a maximum indentation depth of 20 μm, with a Berkovich indenter, using the DCM II module in Nanoindenter G200 (Agilent). The KPFM measurements were carried out using Park Systems XE-100 with Pt/Cr-coated silicon tips (tip radius, 25 nm; force constant, 3 N m−1; and resonance frequency, 75 kHz). KPFM images (3 μm × 3 μm) were scanned at a scanning speed of 0.5 Hz in the noncontact mode with a 2-Vac signal with a frequency of 17 kHz. UPS (ESCALAB 250Xi, Thermo Fisher) was performed using the He I (hv = 21.2 eV) photon line of a He discharge lamp under ultrahigh vacuum conditions for measurement of the work function.
6
Triboelectric Characterization of SARS-CoV-2 Samples
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Voltage signals were measured using an oscilloscope (Tektronix DPO3052) using a probe (Tektronix P5100A) with 10-megohm input impedance. The current signals were measured using a low-noise current amplifier (FEMTO DLPCA-200) with 1-megohm input impedance, which was connected to the oscilloscope. A pushing tester (Z-tech ZPS-100) was used to impose consistently repeated contact and separation in electrical characterizations of triboelectric output current by PFA. The potential of the capacitors and VBT was measured using an electrometer (Keithley 6514). Electrical charges of SARS-CoV-2 culture medium and control media were measured using a handmade Faraday cup that was connected to the electrometer. The sheet resistance of PEDOT:PSS silk textiles was measured using a four-point probe.
7
Ultrasound Characterization and Triboelectric Analysis
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A commercially available ultrasound transducer and generator (Mirae MV100) was used to generate ultrasound in the water and on the porcine skin. The voltage outputs were measured using an oscilloscope (Tektronix DPO3052) with a voltage probe (Tektronix P5100A) of a 40-megaohm input impedance. The current outputs were measured using a low noise current amplifier (FEMTO, DLPCA-200). Triboelectric characterization of materials was done by a pushing tester (Z-Tech, ZPS-100) that applied mechanical forces regularly.
8
Characterizing Triboelectric Nanogenerator Performance
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A mechanical shaker (S510575, TIRA) was connected to a function generator (AFG 3022, Tektronix) and power amplifier (BAA 120, TIRA) to generate a step function input. An oscilloscope (DPO 3052, Tektronix, USA) and a voltage probe (P5100A, Tektronix) were used to measure the output voltage and current. In addition, a low‐noise current amplifier (SR570, Stanford Research Systems) was used to measure the output current, minimizing noise interference. A force sensor (1051V2, Dytran) was attached to the top of the shaker to measure the force between the shaker and substrate. A photographic description of the experimental setup is presented in Figure S25 (Supporting Information). The instantaneous peak power density was calculated using the following equation:
Here, Pinstantaneous represents the instantaneous power density, I is the positive output current for each resistance, R is the value of the connected resistance, and A is the area of the friction surface. The current was measured by serially connecting each resistance with a current amplifier, as shown in FigureS26 (Supporting Information). All TENG experiments were conducted at 18–25° and 40%−45% relative humidity.
Here, Pinstantaneous represents the instantaneous power density, I is the positive output current for each resistance, R is the value of the connected resistance, and A is the area of the friction surface. The current was measured by serially connecting each resistance with a current amplifier, as shown in Figure
9
Cryogenic Resistive Switching Characterization
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Temperature–resistance measurements were performed in the Lakeshore TTPX cryogenic probe station, and resistance measurements were carried out via I–V sweeps at very low bias (−2 to 2 mV) using Keithley 2,602 (I–V analyser/source meter). Switching and endurance tests were performed using Keitheley 3,401 for pulse generation, 2,602 (I–V analyser) for resistance measurement after the application of the pulse and Keithley 2,700 as the data acquisition system. The shapes of the voltage pulses generated and dynamic current response produced were verified using a 500 MHz Tektronix DPO3052 digital oscilloscope. Applied voltage pulse was measured by connecting the device in parallel to the 50 Ω input channel 1 of the oscilloscope. The current response was measured by measuring the voltage drop across a 50-Ω resistor connected in series with the device, and in parallel with a second 50 Ω input channel of the oscilloscope.
10
Fabrication and Characterization of I-TENGs
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The preparation of the I-TENGs has described in the subsection “Methods: I-TENG fabrication.” A shaker (Model No. ET-126B-4, Labworks Inc.) was used to apply regular vertical displacement to the I-TENGs. A Tektronix DPO 3052 digital phosphor oscilloscope and low-noise current pre-amplifier (Model No. SR570, Stanford Research Systems, Inc.) were used for electrical measurements. Origin 2018 used for TENG electrical output data analysis. The study was approved by the Institutional Review Board of the Seoul National University Hospital, Seoul, Korea (#2104-230-1217). The authors affirm that human research participants provided informed consent for publication of the images in Fig. 1a .
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