Pointer-type bimetallic thermometers may be replaced by digital bimetallic thermometers
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References in this article: http://www.tcwdyb.com/news/*ngye*nwen/2012/0629/136.html http://www.kredianou.com/aspcms/news/2012-6-29/246.html Pointer-type bimetallic thermometers may be replaced by digital ones in a few years, and there are several reasons for this! 1. The precision of pointer-type thermometers is not as high as that of digital ones. 2. During transportation, pointer-type thermometers are prone to damage; they cannot be dropped, whereas digital thermometers do not have this drawback. 3. Digital displays make it easier to read the temperature, eliminating the problem of difficulty in reading values with pointer types. However, digital thermometers are more expensive, while pointer-type ones are cheaper, so customers should choose based on their own needs. Please let me know if there are any other aspects you would like to advise on. Thank you
Pointer-type instruments do not require power; they are easy and flexible to install, and their readings are intuitive though not precise. The precision of mechanical structures can only be improved to a limited extent. Instruments themselves are delicate devices, and neither mechanical nor electronic ones should be dropped – this cannot be used as a criterion for judging their quality. Dual-metal thermometers are meant for use in emergency situations and as a reference tool, and their precision is inherently limited. If they do not offer any significant price advantage, they may not be a promising choice. Nowadays, many fields use portable infrared measuring devices, which might represent a better approach
I’ve never heard of a digital dual-metal thermometer before; if such a thing exists, its sensing element remains the same. If it’s different, then it can’t be called a dual-metal thermometer.
The original poster has somewhat misunderstood the purpose of bimetallic thermometers. Both bimetallic thermometers and pressure gauges are designed to enable operators to easily observe and refer to information on site; there’s no need to make things so complicated.
Bimetallics are easy to install at temperature and are inexpensive as a result. No power supply is required. The basic requirements can be met!
Bimetallic thermometers are designed to serve as a reference for personnel on site; moreover, they have a specified range and can achieve accuracy using platinum resistance thermometers