Intelligent pressure transmitter with wide working environment temperature and digital quantity display function

A working environment, digital technology, applied in the direction of measuring fluid pressure, instruments, measuring devices, etc., can solve the problems of high luminous efficiency, fast response time, wide ambient temperature range, etc., to achieve the effect of expanding the scope of application

Inactive Publication Date: 2009-07-01
NO 3 AUTOMATION INSTR & METERS FACTORY SHANGHAI AUTOMATION INSTR & METERS CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is aimed at the existing LCD (liquid crystal) display type intelligent transmission sensor which is difficult to meet the needs of users, the display of a wide temperature range of -40 to +85°C and the defect that it cannot emit light independently in the dark and needs backlight conditions to display. A wide temperature display intelligent transmitter is proposed, which is suitable for a wide range of ambient temperature (-40~+85℃), fast response time (about 1μs), low operating voltage (3~12V DC), and wide viewing angle (up to 165° ), high luminous efficiency, meet the requirements of input functions, can achieve high brightness display, and can be made into a thin display device, which is suitable for the development of miniaturization of automation instruments

Method used

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  • Intelligent pressure transmitter with wide working environment temperature and digital quantity display function
  • Intelligent pressure transmitter with wide working environment temperature and digital quantity display function

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Embodiment Construction

[0012] Such as figure 1 As shown, the intelligent pressure transmitter with a wide working environment temperature and digital display includes an electronic box 13 and a pressure sensor 3 (the sensitive element used to detect differential pressure or pressure can be a differential capacitance diaphragm box or various A piezoresistive sensitive element or other pressure sensitive element), the pressure sensor 3 is installed below the electronic box 13, and is connected to the terminal 1 in the cavity of the electronic box 13 installed above it through the signal line 2, and the terminal 1 is then connected Connect with the sensor socket 4 on the signal processing circuit board 9, there are two sets of terminals on the terminal 1 in the electronic box 13, and the signal processing circuit board 9 is equipped with two connection sockets on the terminal 1 side of the electronic box 13, the terminal 1 One of the two groups of terminals is used to connect the sensor socket 4 of the...

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Abstract

The invention relates to an intelligent pressure transmitter with wide operating environment temperature and digital amount display, which comprises an electronic box and a pressure sensor, wherein the pressure sensor is mounted under the electronic box, a signal processing circuit board, an OLED display component and a wiring terminal are arranged in the electronic box, and the OLED display component can display a plurality of measurement parameters. The OLED display component can resolve the defects of prior LCD (liquid crystal) display intelligent transmitters which can not display wide temperature range of -40 to +85 DEG C required by users, can not emit light and only can display under backlight condition in dark, to improve the on-site display function of transmitters and completely utilize the advantages of lattice display devices, to obtain in-situ configuration and debugging ability, thereby expanding the application range of the transmitters.

Description

technical field [0001] The invention relates to a parameter measuring and displaying instrument, in particular to the field of a transmitter that can be used in automatic instruments. Background technique [0002] At present, transmitters for measuring pressure parameters such as differential pressure, pressure, and liquid level are widely used in the field of process control. The on-site display devices include pointer type, segment code LED (light-emitting diode) digital display type, and LCD (liquid crystal) dot matrix single. Color display type, LCD (liquid crystal) segment code monochrome display type, etc., liquid crystal display is commonly used. LCD (liquid crystal) display devices cannot emit light independently in the dark and need backlight conditions to display, and LCD devices are difficult to break through the temperature range (— 20~+70℃) has always been the bottleneck of the further development of instrument display. Contents of the invention [0003] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/08
Inventor 田泉林
Owner NO 3 AUTOMATION INSTR & METERS FACTORY SHANGHAI AUTOMATION INSTR & METERS CO LTD
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