Force Transducer
Force Transducer - Related Videos
08:12
Pressure Transducer: Calibration Using a Pitot-static Tube
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2023
Source: Shreyas Narsipur, Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC Fluid pressure is an important flow characteristic that is required to determine the aerodynamics of a system. One of the oldest and still existing pressure measurement systems is the manometer due to its accuracy and simplicity of operation. The manometer is generally a U-shaped glass tube that is partially filled with liquid, as shown in Figure 1. The U-tube manometer requires no...
08:46
Production of Lentiviral Vectors for Transducing Cells from the Central Nervous System
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Cited by 44 •
2012
In this protocol we describe production, purification and titration of lentiviral vectors. We provide an example of lentiviral vector-mediated gene delivery in primary cultured neurons and astrocytes. Our methods may also apply to other cell types in vitro and in vivo.
07:55
Isolating Myofibrils from Skeletal Muscle Biopsies and Determining Contractile Function with a Nano-Newton Resolution Force Transducer
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Cited by 1 •
2020
Presented here is a protocol to assess the contractile properties of striated muscle myofibrils with nano-Newton resolution. The protocol employs a setup with an interferometry-based, optical force probe. This setup generates data with a high signal-to-noise ratio and enables the assessment of the contractile kinetics of myofibrils.
03:13
Intermolecular Forces
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2020
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen bonds, and dispersion...
08:00
Force and Acceleration
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2023
Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA The goal of this experiment is to understand the components of force and their relation to motion through the use of Newton's second law by measuring the acceleration of a glider being acted upon by a force. Nearly every aspect of motion in everyday life can be described using Isaac Newton's three laws of motion. They describe how objects in...
FAQs
Applied force deforms an elastic element, and that deformation changes the electrical resistance of an attached strain gauge. Calibrated electronics interpret the resistance change and translate it into force values. This chain links a mechanical event to a quantitative electrical record, allowing investigators to examine the magnitude and timing of muscle, grip, limb, or tactile responses.
The mechanical interaction determines which force configuration is appropriate. Tension measurements address pulling, compression measurements address pushing, and grip measurements quantify force generated by grasping. Matching the transducer to the interaction helps ensure that the recorded signal represents the intended physical output, which is essential when relating behavior to neural activity or sensory stimulation.
Calibration allows the electrical change produced by the strain gauge to be translated into meaningful force values. Without that conversion, recordings would indicate signal variation but not the corresponding mechanical magnitude. Calibrated measurements make it possible to compare contractions, grip strength, limb movements, or tactile responses quantitatively across observations and connect them with neural measurements.
A transducer measures the physical result of neural control rather than neural activity itself. Recording force over time provides an objective behavioral output that can be compared with neural signals. This relationship helps researchers assess how neural activity corresponds to muscle contraction, grip generation, or limb movement, while separating changes in motor performance from the underlying neural measurements.
A basic workflow places the device where the relevant interaction occurs, such as between a subject and a grip, limb interface, or tactile stimulus. The experiment then records the electrical signal over time and uses calibrated electronics to express it as force. The resulting time-dependent record can quantify the magnitude and dynamics of the response.
These devices provide quantitative behavioral data for studies of motor control, sensory processing, neuromuscular disorders, and rehabilitation. Measurements can characterize muscle contraction, limb movement, grip strength, or responses to tactile stimuli. Because the outputs are expressed as force over time, they offer a practical way to evaluate physical performance and changes associated with neurological or neuromuscular function.