Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Pipe Flowrate Measurement01:28

Pipe Flowrate Measurement

748
In pipe flow measurement, orifice, nozzle, and Venturi meters are commonly used to determine fluid flowrates by constricting the flow area, which increases fluid velocity and reduces pressure. This pressure difference, governed by Bernoulli's principle and adjusted for real-world conditions, is essential for calculating flowrate. Each meter type is suited to specific applications based on accuracy, efficiency, and compatibility with various flow conditions.
The orifice meter is a simple,...
748
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

1.1K
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
1.1K
Thermometers and Temperature Scales01:22

Thermometers and Temperature Scales

5.6K
Any physical property that depends consistently and reproducibly on temperature can be used as the basis of a thermometer. For example, volume increases with temperature for most substances. This property is the basis for the common alcohol thermometer and the original mercury thermometers. Other properties used to measure temperature include electrical resistance, color, and the emission of infrared radiation.
As many physical properties depend on temperature, the variety of thermometers is...
5.6K
Gas Chromatography: Types of Detectors-I01:21

Gas Chromatography: Types of Detectors-I

478
There are different types of detectors used in gas chromatography, each with its own specific properties that make it suitable for detecting certain types of analytes. The most commonly used detectors in GC are thermal conductivity detector (TCD), flame ionization detector (FID), and electron capture detector (ECD).
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
478
Constant Pressure Calorimetry03:02

Constant Pressure Calorimetry

85.5K
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
85.5K
Temperature Measurement Sites01:14

Temperature Measurement Sites

1.8K
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
1.8K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Analysis of mechanical dynamics in acoustofluidics: assessing the impact of frequency sweeping on PZT performance and acoustic phenomena.

Ultrasonics·2026
Same author

Viewing Stomata in Action: Autonomous in Planta Imaging of Individual Stomatal Movement.

Plant, cell & environment·2025
Same author

Micro Coriolis Mass Flow Sensor with Large Channel Diameter Realized by HNA Wet Etching.

Sensors (Basel, Switzerland)·2025
Same author

Fabrication of Buried Microchannels with Almost Circular Cross-Section Using HNA Wet Etching.

Micromachines·2024
Same author

Flow-Independent Thermal Conductivity and Volumetric Heat Capacity Measurement of Pure Gases and Binary Gas Mixtures Using a Single Heated Wire.

Micromachines·2024
Same author

Compact Micro-Coriolis Mass-Flow Meter with Optical Readout.

Micromachines·2024

相关实验视频

Updated: Jul 21, 2025

Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

Thermal Measurement Techniques in Analytical Microfluidic Devices

Published on: June 3, 2015

9.7K

热流量计具有集成的热导电传感器.

Shirin Azadi Kenari1, Remco J Wiegerink1, Henk-Willem Veltkamp2

  • 1Integrated Devices and Systems Group (IDS), University of Twente, 7522 NB Enschede, The Netherlands.

Micromachines
|July 29, 2023
PubMed
概括
此摘要是机器生成的。

这款新型热流传感器芯片独立测量气体流量和气体类型. 它使用热度计传感器用于流量和独特的导热传感器用于气体识别,提高流速的准确性.

关键词:
惠特斯通桥是什么意思 惠特斯通桥热量测量传感器的热量测量传感器导热率 导热率 导热率 导热率 导热率 导热率热流传感器是一种热流传感器.

更多相关视频

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

12.1K
Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow
08:25

Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow

Published on: April 30, 2018

7.2K

相关实验视频

Last Updated: Jul 21, 2025

Thermal Measurement Techniques in Analytical Microfluidic Devices
08:29

Thermal Measurement Techniques in Analytical Microfluidic Devices

Published on: June 3, 2015

9.7K
Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
09:48

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

12.1K
Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow
08:25

Measurements of Local Instantaneous Convective Heat Transfer in a Pipe - Single and Two-phase Flow

Published on: April 30, 2018

7.2K

科学领域:

  • 微电子机械系统 (MEMS) 是指微电子机械系统.
  • 热传感技术 热传感技术
  • 气体分析 气体分析

背景情况:

  • 精确的气体流量测量在各种工业和科学应用中至关重要.
  • 现有的热流传感器通常需要对不同气体进行校准,这限制了它们的多功能性.
  • 区分气体类型对于精确的流量测定至关重要.

研究的目的:

  • 开发一种新的,气体独立的热流传感器芯片.
  • 将热量计流量传感器与导热传感器集成,用于同时识别流量和气体.
  • 为了在不需要重新校准的情况下,在各种气体类型中进行准确的流量测量.

主要方法:

  • 使用COMSOL设计和模拟一个微制造的热流传感器芯片.
  • 整合了三个测热传感器,用于流量形状和流向,以及一个用于气体识别的导热传感器.
  • 使用,,和二氧化碳进行实验验证.

主要成果:

  • 传感器芯片成功测量了包括空气在内的多种气体的导热率 (0.02522 W/m·K,误差为2.9%).
  • 已证明能够识别气体类型,使得流速测量的校正.
  • 验证了传感器在流量配置和方向检测方面的性能.

结论:

  • 开发的气体独立热流传感器芯片为多气体流量监控提供了多功能解决方案.
  • 集成的导热传感器有效地识别气体类型,提高流量测量的准确性.
  • 这项技术在需要精确控制和监控气流的系统中具有潜在的应用.