Related Experiment Video

Updated: Jan 26, 2026

Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor
07:17

Measurement of Dynamic Force Acted on Water Strider Leg Jumping Upward by the PVDF Film Sensor

Published on: August 3, 2018

6.4K

A Flow Velocity Measurement Method Based on a PVDF Piezoelectric Sensor

Qi Li1,2,3, Junhua Xing4,5,6, Dajing Shang7,8,9

  • 1Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China. leechi319@163.com.

Sensors (Basel, Switzerland)
|April 10, 2019
PubMed

Keywords:
PVDF filmvelocity measurement

More Related Videos

Automated Measurement of Microcirculatory Blood Flow Velocity in Pulmonary Metastases of Rats10:56

Automated Measurement of Microcirculatory Blood Flow Velocity in Pulmonary Metastases of Rats

Published on: November 30, 2014

8.8K
A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure09:51

A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure

Published on: February 20, 2019

25.9K

Related Concept Videos

Velocity and Acceleration in Steady and Unsteady Flow01:11

Velocity and Acceleration in Steady and Unsteady Flow

In fluid mechanics, velocity and acceleration are key concepts for analyzing particle motion in both steady and unsteady flow. Consider a fluid particle moving along a pathline, where its velocity depends on its position and time. The particle's acceleration is obtained by differentiating the velocity with respect to time.
The acceleration can be generalized to any point in the flow, and expressed as components along three perpendicular directions, representing changes in velocity over...
408
Velocity and Position by Integral Method01:13

Velocity and Position by Integral Method

If acceleration as a function of time is known, then velocity and position functions can be derived using integral calculus. For constant acceleration, the integral equations refer to the first and second kinematic equations for velocity and position functions, respectively.
Consider an example to calculate the velocity and position from the acceleration function. A motorboat is traveling at a constant velocity of 5.0 m/s when it starts to decelerate to arrive at the dock. Its acceleration is...
7.5K
Velocity and Position by Graphical Method01:34

Velocity and Position by Graphical Method

Velocity and position can be calculated from the known function of acceleration as a function of time. The total area under the acceleration-time graph and the velocity-time graph gives the change in velocity and position, respectively. In the case of an airplane, its acceleration is tracked using the inertial navigation system. The pilot provides the input of the airplane's initial position and velocity before takeoff. The inertial navigation system then uses the acceleration data to...
9.7K
Average Velocity01:12

Average Velocity

To calculate the other physical quantities in kinematics, we must introduce the time variable. The time variable allows us not only to state the position of the object during its motion, but also how fast it is moving. The speed at which an object is moving is given by the rate at which the position changes with time. For each position xi, we assign a particular time ti. If the details of the motion at each instant are not important, the rate is usually expressed as the average velocity. This...
22.7K
Instantaneous Velocity - II01:10

Instantaneous Velocity - II

Instantaneous velocity is the quantity that measures how fast an object is moving along its path. In other words, the instantaneous velocity of an object is the limit of the average velocity as the elapsed time approaches zero, or the derivative of displacement with respect to time. Like average velocity, the instantaneous velocity is a vector with the dimensions of length per unit time. Instantaneous velocity can have both positive and negative values. The instantaneous velocity can be...
12.4K
Escape Velocity01:26

Escape Velocity

The escape velocity of an object is defined as the minimum initial velocity that it requires to escape the surface of another object to which it is gravitationally bound and never to return. For example, what would be the minimum velocity at which a satellite should be launched from the Earth's surface such that it just escapes the Earth's gravitational field?
To calculate the escape velocity, it is assumed that no energy is lost to any frictional forces. In practice, a satellite...
8.3K