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Definisi 피라니게이지 dalam kamus Kreol Haiti
Pirani Gauge Ini adalah salah satu tolok vakum yang tidak langsung mengukur tahap getaran dalam peranti vakum dengan menggunakan fakta bahawa kekonduksian terma gas adalah berkadar dengan ijazah vakum (tekanan gas sisa) di bawah tekanan rendah. Malah, kerana tahap vakum dipengaruhi oleh keadaan selain daripada pengaliran haba, terdapat kelemahan yang harus dikalibrasi dengan kerap. 피라니게이지
기체의 열전도율이 저압 하에서는 거의 진공도(잔류기체의 압력)에 비례하는 것을 이용하여 간접적으로 진공장치 안의 진동도를 재는 기기로 진공계의 하나이다. 실제로는 진공도가 열전도외의 조건들에 의해서도 많은 영향을 받기 때문에 자주 교정을 해줘야 한다는 단점이 있다.
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KREOL HAITI BUKU YANG BERKAIT DENGAN «피라니게이지»
Ketahui penggunaan
피라니게이지 dalam pilihan bibliografi berikut. Buku yang berkait dengan
피라니게이지 dan ekstrak ringkas dari yang sama untuk menyediakan konteks penggunaannya dalam kesusasteraan Kreol Haiti.
1
A User's Guide to Vacuum Technology - 88페이지
When a Wheatstone bridge circuit is used to measure the resistance change, the device is termed a Pirani gauge. Alternatively, the temperature change can be measured directly with a thermocouple, in which case it is called a thermocouple ...
2
Lyophilization of Biopharmaceuticals - 128페이지
Some lyophilizers have an additional device, the Pirani gauge, which is sensitive to gas composition. During primary drying, most of the chamber is filled with water vapor. On the other hand, the chamber is essentially filled with nitrogen gas at ...
Henry R. Costantino, Michael J. Pikal, 2005
4
Instrument Engineers' Handbook, Fourth Edition, Volume ... - 800페이지
Pirani Vacuum Gauge The Pirani gauge is a popular example of a thermal vacuum gauge. In this device, a constant current heats a filament that is cooled by the gas present in the vacuum environment. Since the amount of heat transferred ...
5
Industrial Instrumentation & Control,2e - 315페이지
There are two types of thermal conductivity gauges generally used to measure pressure, which are discussed below: (a) Pirani Gauge It consists of two wire filaments. One filament serves as a reference and is sealed in an evacuated glass, ...
6
Electrical Measurements And Instrumentation - 79페이지
The range of Pirani gauge is 2 to 200 microns Hg. Advantages : i) It is easy to operate. ii) The design of Pirani gauge is very simple. Limitations : 1) The calibration of pirani gauge depends on the nature of gas. Generally in Pirani gauge the ...
U.A.Bakshi, A.V.Bakshi, 2009
7
Instrumentation Reference Book - 169페이지
15.3.1.2 The Pirani Gauge (Pirani, 1906) Construction An electrically heated platinum or tungsten wire, operating at a temperature of 320oK, is mounted along the axis of a glass or metal tube, which is connected to the vacuum apparatus.
8
Industrial Control Handbook - 67페이지
In the Pirani gauge, constant energy is supplied to a wire in the vacuum to be measured. As the level of vacuum varies, the differing heat losses cause the temperature of the wire to change. In Fig. 3.20a, the temperature of the wire is sensed ...
9
Measurement and Instrumentation Principles - 313페이지
Alan S Morris. the thermocouple gauge, the Pirani gauge, the thermistor gauge, the McLeod gauge and the ionization gauge, and they are covered in more detail below. Unfortunately, all of these specialized instruments are quite expensive.
10
Vacuum Science and Technology: Pioneers of the 20th Century
Pirani is generally best known for his thermal conductivity vacuum gauge, the “Pirani gauge,” ever since his publication that described it in 1906 with the title “Selbstzeigendes Vakuum-Messinstrument” (“directly indicating vacuum gauge”) (4).
