The electrical measurement device consists of several devices. The voltage part is measured by the NI-9234 voltage measurement module in the USB data acquisition device of NI cDAQ-9174 and the NI-9237 strain/bridge input module (National Instruments, Austin, TX, USA) to measure the output voltage of the fiber energy collector and the strain at the time of tapping, as shown in Figure 4 a. The strain relief/bridge input module includes the CHIEF TB-120 bridge terminal block. The single-axis three-wire strain gauge is connected to the bridge terminal block by a quarter-bridge method, which the strain gauge resistance is about 120 Ω and the gauge factor (GF) is about 2. The measurement can be conducted by attaching the strain gauge to the energy acquisition device, as shown in Figure 4 b. The experiment is performed with FleXense software (Chief SI, Hsinchu, Taiwan), and the signal waveforms and values on the computer screen are used to record the voltage data generated during the piezoelectric fiber deformation transients, as shown in Figure 4 c. The current is measured with the CH Instruments 611C microelectric flow meter, which has a precision of 10–12 A. Finally, connect the positive and negative terminals of the sample to the input of the instrument for measurement.
Cdaq 9174
Manufactured by National Instruments
Sourced in United States
The CDAQ-9174 is a CompactDAQ chassis that provides connectivity for up to four C Series I/O modules. It features a rugged and compact design, supporting a wide range of sensor and signal types. The CDAQ-9174 offers a modular and scalable solution for data acquisition and control applications.
Automatically generated - may contain errors
Lab products found in correlation
Ni 9403, by National Instruments (3 mentions)
Labview full development system, by National Instruments (3 mentions)
Ni 9237, by National Instruments (2 mentions)
Labview program, by National Instruments (2 mentions)
Sr570, by Stanford Research Systems (1 mentions)
Multiclamp 700b, by Molecular Devices (1 mentions)
H10722 210, by Hamamatsu Photonics (1 mentions)
Dm455cfp, by Olympus (1 mentions)
Dm515yfp, by Olympus (1 mentions)
Am 3000, by A-M Systems (1 mentions)
Ni 9215, by National Instruments (1 mentions)
Multiclamp 700b amplifier, by Molecular Devices (1 mentions)
15 protocols using cdaq 9174
1
Piezoelectric Fiber Energy Harvesting Measurement
2
Thermoelectric Textile Characterization
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The thermoelectric
textile was placed on a variable temperature hot plate (HP60, Torrey
Pines Scientific Inc). Surface-mounted K-type thermocouples (Omega
Engineering) were placed on the top and bottom of the textile, to
monitor the surface temperatures via a National Instruments cDAQ 9174
with an internal temperature reference. A cooling plate (Staychill)
was placed on top of the thermoelectric textile, and thin sheets of
Kapton (50 μm thickness) were placed on the top and bottom of
the textile to prevent electrical short circuits. The generated voltage
was recorded by a Keithley 2400 SMU, which also acted as a variable
load by drawing current from the textile device.
textile was placed on a variable temperature hot plate (HP60, Torrey
Pines Scientific Inc). Surface-mounted K-type thermocouples (Omega
Engineering) were placed on the top and bottom of the textile, to
monitor the surface temperatures via a National Instruments cDAQ 9174
with an internal temperature reference. A cooling plate (Staychill)
was placed on top of the thermoelectric textile, and thin sheets of
Kapton (50 μm thickness) were placed on the top and bottom of
the textile to prevent electrical short circuits. The generated voltage
was recorded by a Keithley 2400 SMU, which also acted as a variable
load by drawing current from the textile device.
3
Cyclic Uniaxial Loading of 3D Printed Samples
4
Chordal Force Measurement Technique
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Chordal force was measured in a single secondary (strut) chord using a custom developed force transducer (Fig. 6 ). The force gauge utilizes a specially designed cantilever frame for chordal studies and is configured for a full Wheatstone bridge strain gauge measurement for optimal signal-to-noise ratio. The frame attaches to the chord at two points via silk suture before the chord is cut in between, leaving the frame “bridging” the cut chord. The details of this gauge, including the design and construction, are outside the scope of this study and will be presented in a future publication. Data from this force gauge was acquired with a NI (National Instruments, Austin, Texas) cDAQ 9174 acquisition chassis with a NI 9237 strain gauge input module through a custom VI.
5
Whole-Cell Patch Clamping with Computer-Controlled Navigation
6
Compression Testing of Tooth-Bone Interface
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Compression tests were conducted (Fig. 2 ). The materials of the specimen were CNC-milled zirconia (VITA YZ, VITA Zahnfabrik, Germany) for the tooth model (210 GPa) and PMMA (VITA CAD-Temp®, VITA Zahnfabrik, Germany) for the cylindrical bone blocks (2.8 GPa). An adhesive (3 M U200, 3 M, USA) was applied to bond the tooth model and bone block. The specimen was tested in a universal testing machine (AG-I, Shimadzu Corp., Japan) at 2 N/s until 400 N (a moderate human bite force was chosen) was achieved, which was then maintained for 60 s. Strain gauges (KFGS-02-120-C1-11, Kyowa Electronic Instruments Co., Ltd. Japan) were attached to the mesial side (Strain 1) and distal side (Strain 2) of the bone block. The data-acquisition system, including a 4-slot USB chassis (cDAQ-9174, National Instruments, USA) and an 8-channel capture module (NI-9235, National Instruments, USA), was used to record the strain values generated during the loading. The measured strains were compared with the results of a finite element simulation that used the same experimental setting.![]()
An illustration of validation experiment model and the placements of strain gauges is shown on the top. The two photos on the bottom show the real setup
7
Whisker Movement Measurement Protocol
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Whisker movement was elicited in each subject by providing a scented stimulus (chocolate milk). The laser micrometers themselves were connected to a 32-Channel Digital I/O Module (NI 9403, National Instruments, Dallas, Tx), which received digital output from the laser micrometers. The I/O module was connected to a PC through a CompactDAQ chassis (cDAQ-9174, National Instruments, Dallas, Tx). The I/O module acquired the laser micrometer signal at a sampling rate of 1 kHz. LabVIEW (LabVIEW Full Development System, National Instruments, Dallas, Tx) software was used as the interface for data acquisition.
8
Chordal Force Measurement Apparatus
9
Whisker Movement Measurement Protocol
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Whisker movement was elicited in each subject by providing a scented stimulus (chocolate milk). The laser micrometers themselves were connected to a 32-Channel Digital I/O Module (NI 9403, National Instruments, Dallas, Tx), which received digital output from the laser micrometers. The I/O module was connected to a PC through a CompactDAQ chassis (cDAQ-9174, National Instruments, Dallas, Tx). The I/O module acquired the laser micrometer signal at a sampling rate of 1 kHz. LabVIEW (LabVIEW Full Development System, National Instruments, Dallas, Tx) software was used as the interface for data acquisition.
10
Piezoelectric Composite Structure for Directional Wave Propagation
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The fabricated composite structure is realized from a 0.5-mm-thick PLA layer with 150 glued (using 3M DP270 epoxy adhesive) piezoelectric disks. Each of these piezoelectric disks has a diameter of 7 mm and a thickness of 0.5 mm (PZT4). For each circuit attached to a PZT disk, negative capacitance C′ = − 2 nF is obtained using R1 = 10 ohms and R2 = 20 ohms, C0 = 1 nF, and R0 = 1 megohms. On/off switching of the circuits is accomplished using three output channels of a general-purpose data acquisition system (National Instruments cDAQ-9174 with a digital output module). A LabVIEW script then generates three output signals with the desired delay. A Polytec PSV-400 scanning laser Doppler vibrometer measures the resulting out-of-plane wavefield velocity, repeating each measurement 10 times (to reduce the influence of noise). A bonded input PZT disk (PZT4) produces an incident wave in response to a 150-mV (peak-to-peak) burst sinusoidal signal, using a function generator (Agilent 33220A) coupled to a voltage amplifier (B&K1040L). Proper triggering of the laser measurements allows full reconstruction of the out-of-plane velocity field. To show edge propagation only along the domain wall, absorbing patches have been used near the source and around the sample in Fig. 4 .
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