It is made out of wood and painted white. A single screen may measure 76.5 by 61 by 59.3 cm (30.1 by 24.0 by 23.3 in) and a double screen 76.5 by 105 by 59.3 cm (30.1 by 41.3 by 23.3 in). A psychrometer (wet and dry bulb thermometer) 3.A Thermograph (a chart recorder that measures and records temperature. A Stevenson screen or instrument shelter is a shelter or an enclosure to meteorological instruments against precipitation and direct heat radiation from outside sources, while still allowing air to circulate freely around them. 상술한 장애물들을 피하면서, 공기는 통할 수 있게 만든다. The instruments kept inside a Stevenson's screen are;hygrometer,barometer,thermometer,thermograph,dewcell and a psychrometer. Barometer can also be kept in SS. Stevenson screen A widely used shelter that contains meteorological instruments, arranged in such a way that they give standard readings. Stevenson screens may also be known as a cotton region shelter, an instrument shelter, a thermometer shelter, a thermoscreen or a thermometer screen. 2020-04-16 12:34:38 2020-04-16 12:34:38. thermometer. ‿ ( ‿ ) Our range of Stevenson Screen instrument shelters is the answer for the replacement of wooden screens in synoptic and climatological networks, and for many other applications. Stevenson screens face north, which combined with their colour and slats, give us the best measure of the current temperature, without getting too hot in direct sunlight or being too cool in the shade. Instruments used to measure temperature are usually placed in a Stevenson screen. Anonymous Answered . Asked by Wiki User. Answer. A purpose made wooden Stevenson Screen with its metal stand is very expensive but very effective. The unit is either supported by four metal or wooden legs or a wooden post. maurice.mutuku answered the question on May 29, 2017 at 05:35 Next: Figure 7 shows an experiment set-up that may be used to investigate one of the laws. However, if you look closely at a “real” Stevenson screen, you will notice that the side panels have louvres sloping downwards on both the outside AND the inside. One side of the screen is hinged to serve as a door which can be opened and closed to give access to the instruments kept inside. The Stevenson should be placed above the ground and away from the buildings. Stevenson Screen - wooden. Offering relatively low cost and low maintenance, and ending the hassle of continual painting and repair. Top Answer. To measure the temperature accurately we keep thermometers in Stevenson screens, this is a white box, with slats in it to allow air to flow through the box. Stevenson Screen . Stevenson, Journal of Scottish Meteorological Society, Vol.1, page122, June 1864 A Stevenson screen (also known as an instrument shelter) is a meteorological screen to shield instruments against precipitation and direct heat radiation from outside sources, while still allowing air to circulate freely around them. Maximum and minimum thermometers or Six's thermometer and a wet and dry bulb thermometer are kept in the SS. 백엽상(百葉箱, 영어: white-painted instrument shelter or Stevenson screen, 독일어: Thermometerhütte, 네덜란드어: Weerhut)은 기상학에서 각종 측정 도구를 눈비 및 지열을 비롯한 외부 열복사에 노출되지 않게 하기 위해 만드는 함이다. 0 0 1. A platinum resistance thermometer (PRT) is used for the measurement of air temperature at all synoptic stations and all supplementary stations that employ an automatic system.The thermometer is exposed in a Stevenson screen (see image above) at a height of 1.25 m above the ground and aspirated only by natural ventilation through the side louvers. A Stevenson screen is a meteorological piece of equipment designed to shield instruments from precipitation and direct heat radiation, while still allowing air to circulate freely around the instruments. The Stevenson Screen is a unit which is used to house thermometers and other weather instruments. Hope it will u..! The Stevenson Screen is a double-louvered wooden box, painted white and specially designed to shield the thermometers from the direct rays of the sun, from precipitation, and from heat radiation from the ground. Instruments Temperature. It’s not a huge problem to skimp and only have one set of louvres per side, except the original design is to keep mechanical equipment mostly dry, not electronics which need to be kept completely dry. It forms part of a standard weather station. The screen allows good air flow across the thermometers but prevents heating from direct sunlight. Stevenson Screen is available with multiple payment options and easy delivery. Which 4 instrument are kept in a stevenson screen? Stevenson Screen. Maximum and minimum temperature thermometers are placed inside a Stevenson Screen. There is plenty of room inside for all of the instruments you need. 2. The Stevenson screen is white to reflect sunlight and has slats to allow air to circulate easily. How we measure air temperature. Some weather instruments can be quite expensive and need to be kept secure. The floor of the screen is also louvered. picture A stevenson screen is a shelter or enclosure for weather and meteorological instruments. The Stevenson Screen or thermometer screen is a standard shelter (from rain, snow and high winds, but also leaves and animals) for meteorological instruments, particularly wet and dry bulb thermometers used to record humidity and air temperature. The screen consists of a box, with sides ventilated by louvres, a ventilated floor and upper part, and an air space between an inner and outer roof. All of the instruments will be shaded from direct sunlight. Resistance temperature detector. What is a stevenson screen? New Description of Box for Holding Thermometers, Thomas C.E. You may want to put a padlock on the Stevenson screen door to stop anybody resetting the instruments or tampering with them. The louvred sides are double so that no rain or wind can get in. Interior of a Stevenson screen. The idea is for the weather instruments to take accurate readings of the air, rather than direct sunlight or … The Stevenson Screen normally carries maximum and minimum thermometers, dry and wet bulb thermo­meters. Temperature - Automatic. The interior size of the screen will depend on the number of instruments that are to be used. The box contains thermometers for measuring temperature, which are protected from direct solar … Buy low price Stevenson Screen in Kilpauk, Chennai offered by EVERFLOW SCIENTIFIC INSTRUMENTS. 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