Automatic dew-point temperature sensor.

H Graichen; R Rascati; R R Gonzalez

doi:10.1152/jappl.1982.52.6.1658

Home/Archive/PubMed

PubMed · 7107477

Automatic dew-point temperature sensor.

H Graichen·R Rascati·R R Gonzalez

View original source ↗Export metadata ↓

Abstract

A device is described for measuring dew-point temperature and water vapor pressure in small confined areas. The method is based on the deposition of water on a cooled surface when at dew-point temperature. A small Peltier module lowers the temperature of two electrically conductive plates. At dew point the insulating gap separating the plates becomes conductive as water vapor condenses. Sensors based on this principle can be made small and rugged and can be used for measuring directly the local water vapor pressure. They may be installed within a conventional ventilated sweat capsule used for measuring water vapor loss from the skin surface. A novel application is the measurement of the water vapor pressure gradients across layers of clothing worn by an exercising subject.

Explore related subjects

Body Surface Area Body Temperature Capsules Humans Physiology Sweating Journal Article Research Support, U.S. Gov't, P.H.S.

Keep this discovery

Explore connections, maps & timelines

BibTeX RIS

H Graichen, R Rascati, R R Gonzalez. 1982. Automatic dew-point temperature sensor.. https://doi.org/10.1152/jappl.1982.52.6.1658

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed1995

Cardiac effects of growth hormone in short normal children.

Explore the source record for details and available documents.

Body Surface Area↗

PubMed1995

[Therapy of the severely burned child from the pediatric intensive care viewpoint].

All burn injuries involving more than 10% of the total body surfaces in children necessitate immediate fluid replacement. Such patients should be admitted to a hospital with an intensive care unit specialized in dealing with such accidents. Fluid replacement should be started, with administration of an isotonic electrolyte solution, such as lactated Ringer's, to avoid severe burn shock. Several other fluid replacement protocols have been proposed. Controversy exists as to whether a hypertonic or hypotonic solution should be used and whether or not colloid should be added to these solutions. The findings of controlled studies have not shown any differences with regard to morbidity or mortality. Dextran solution helps to stabilize the circulation during the first few hours. In addition, albumin should be given from 8 to 24 h post-injury. Most burned children require central venous catheters for intravenous fluid supplementation. The adequacy of fluid replacement must be assessed by a variety of clinical parameters, beginning with urinary excretion of above 0.5-1.0 ml/kg per hour. Acute management of burned children includes adequate analgesia with potent drugs. Opioids or ketamine should be given to avoid pain and pain-related depression of the circulation. Adequate intensive care of inhalation trauma, sepsis, prevention of multi-organ failure, early enteral feeding and limited prophylactic use of antibiotics can reduce mortality in these severely ill children.

Body Surface Area↗

PubMed1994

[Methods for measurement of wound extent].

Healing is a biologically complicated process, which is difficult to measure objectively. Several products and pharmaceuticals have been applied to the treatment of both acute and chronic wounds. There are, however, only few well-documented studies of the effect and many recommendations are based on casuistries, undocumented studies or in vitro studies. One of the most prominent problems has been the lack of exact measurements. This article describes the available clinical measurement parameters and discusses their strengths and weaknesses. The following methods of measurement are described: Wound surface area (WSA), wound area (WA), and volume (VOL). A stratification of wounds before measuring is suggested depending on aetiology and form (volume or surface wounds). The most sensitive measure for assessment of wound healing is recommended. From a clinical point of view the transition from a volume to surface wound is not distinct, and therefore WA is recommended as the most relevant measurement during wound healing.

Body Surface Area↗