和精密数字压力表的区别精密数字压力计和精密数字压力表从功能上说，都是作为校验压力变送器和压力表时的一种高精度的标准表。 The difference between precision digital pressure gauge and precision digital pressure gauge. Functionally speaking, both precision digital pressure gauge and precision digital pressure gauge are used as a high-precision standard gauge when verifying pressure transmitters and pressure gauges. A product that is used in conjunction with a pressure calibration table to verify pressure. Precision digital pressure gauges and precision digital pressure gauges are all 0.05 grade, AC and DC dual-purpose, with 24V feed output, you can verify the current while verifying the pressure. With automatic zero calibration function, there are five types of units that can be converted, which can be operated on the panel. Having said that, what is the difference between a precision digital pressure gauge and a precision digital pressure gauge? The appearance is different, the appearance of the precision digital pressure gauge and the ordinary spring tube pressure gauge is the same. Precision digital pressure gauges are bench-top and larger. Precision digital pressure gauges can be used to measure pressure on the spot, and precision digital pressure gauges are often used in laboratories. The main difference is that a precision digital pressure gauge can only be equipped with one module for one host, and a precision digital pressure gauge can be equipped with multiple modules for one host. Customers can choose according to their actual requirements when choosing a pressure standard gauge.
采用进口高精度压力传感器和24位高分辨率A/D转换器，以单片机为核心的高精度压力测量和校验仪器。 The precision digital pressure gauge uses imported high-precision pressure sensors and 24-bit high-resolution A / D converters, and uses a single-chip microcomputer as its core for high-precision pressure measurement and calibration instruments. It is a field pressure measuring instrument combining modern digital measurement technology, high-precision pressure sensor and high-performance lithium battery. The new precision digital pressure gauge based on sapphire sensor and diffused silicon sensor overcomes the shortcomings of the previous generation of precision digital pressure gauge. The new generation of precision digital pressure gauge has the following characteristics: long sensor life, good signal stability and good sealing performance. Leakage, high measurement accuracy, wide operating temperature range (high-temperature type can be measured up to 300 ℃), small temperature drift, our products can work normally in the environment range of -30 ℃ ~ 70 ℃, and the maximum drift is less than 0.3%. From a global perspective, diffused silicon sensors are widely used in petroleum, chemical, power, aerospace, automotive and other important places, while ceramic piezoresistive sensors are limited to civilian places. The price of a diffused silicon sensor is a ceramic. 3 to 10 times the piezoresistive sensor. The sensor plays the most important role in the instrument, and its choice directly affects the life, accuracy, reliability and safety of the instrument. For safe, reliable and accurate operation on site, please choose carefully.
第二点：信号处理电路和生产工艺比较:我们的信号处理电路是由具有多年压力传感器处理经验的工程师和极具专业精神的理工大学仪表实验室教授联合设计，因为仪表本身是电子产品，却又是区别于电子产品!所以我们更专业!信号处理电路主要由业界最先进的低功耗处理器、高性能放大器和电源管理芯片组成仪表软件设计合理、精妙，在对传感器进行了非线性校正和温度补偿的同时具备高效率和超低功耗等特性。 The second point of precision digital pressure gauge : Comparison of signal processing circuit and production process: Our signal processing circuit is designed by engineers with many years of experience in pressure sensor processing and highly professional professors at the Instrument Lab of Polytechnic University, because the instrument itself is Electronic products are different from electronic products! So we are more professional! The signal processing circuit is mainly composed of the industry's most advanced low-power processor, high-performance amplifier and power management chip. The instrument software design is reasonable and exquisite. In addition to non-linear correction and temperature compensation, it has the characteristics of high efficiency and ultra-low power consumption. During the actual test, the overall temperature drift of our signal circuit board in the range of -30 ° C to 75 ° C is 0.089% (we can provide valid test data), and the precision can be seen to be average.