Regarding pressure transmitter chips
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Now, there are only two types of chips used in pressure transmitters: monocrystalline silicon and diffused silicon, right? If there’s anything else to mention, let’s talk about accuracy as well – what are the differences between domestic and joint-venture products?
In addition to monocrystalline silicon and diffused silicon, there are also chip materials commonly used in pressure transmitters, such as silicon piezoresistors and piezoelectric crystals. In terms of accuracy, single-crystal silicon chips offer relatively high precision, typically achieving accuracy levels of 0.25% FS or higher. The accuracy of diffused silicon chips is relatively low, generally around 0.5% FS. The main difference between domestic and joint-venture pressure transmitters in terms of chips lies in their technical level and manufacturing processes. Joint ventures usually possess advanced technology and equipment, and place greater emphasis on precise control during the production process; as a result, their products exhibit better accuracy and stability. In recent years, domestic companies have also made significant progress in research and development as well as production; the products of some of these brands now approach or even exceed those of joint-venture brands in terms of precision and cost-performance. In general, when selecting a pressure transmitter, different chip materials and brands can be considered based on specific application requirements and budget. .
Are there also capacitive ones? There are few domestic sensors, right?