Micro-differential voltage transmitter

A transmitter and micro-differential pressure technology, which is applied in the direction of instruments, measuring fluid pressure, and pressure difference measurement between multiple valves, can solve the problems of inconvenient popularization and application in civil fields, lack of industry versatility, and complex structure. , to achieve the effect of industry versatility, convenient mass production scale, and simple overall structure

Inactive Publication Date: 2015-10-14
四川奇胜科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, pressure transmitters have been widely used in large-scale industrial fields such as chemical industry, metallurgy, and power generation. However, in order to meet the needs of industrial fields, existing pressure transmitters generally have complex structures, high costs, and do not have industry versatility. It is not convenient to popularize and apply in the civil field

Method used

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  • Micro-differential voltage transmitter

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Embodiment

[0017] Such as figure 1 As shown, the differential pressure transmitter includes a microprocessor, A / D converter, liquid crystal display, modem, keyboard, memory, voltage regulator, temperature sensor, V / I conversion circuit and power supply, and A / D converter , D / A converter, liquid crystal display, modem, keyboard, memory, voltage regulator and temperature sensor are all connected to the microprocessor, the input end of the V / I conversion circuit is connected to the output end of the D / A converter, and the power supply and stability The voltage regulator is connected and supplies power to the microprocessor. The memory in this embodiment is used to store operating parameters such as sensor characteristic parameters, field commands, and field states. The microprocessor of this embodiment adopts the MPS430F135 low-power consumption 16-bit microcontroller of Texas Instruments (TI), the temperature sensor adopts the TMP100 chip, the modem adopts the HART modem, and the voltage ...

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Abstract

The invention discloses a micro-differential voltage transmitter which comprises a microprocessor, an A / D converter, a D / A converter, an LED, a modem, a keyboard, a memory, a voltage-stablizer, a V / I converting circuit and a power supply, wherein the A / D converter, the D / A converter, the LED, the modem, the keyboard, the memory and the voltage-stablizer are connected with the microprocessor, the input end of the V / I converting circuit is connected with the output end of the D / A converter, and the power supply is connected with the voltage-stablizer and supplies power to the microprocessor. The micro-differential voltage transmitter is simple in integral structure, easy for realization, and low in cost. The micro-differential voltage transmitter is universal and is applicable to the civil field.

Description

technical field [0001] The invention relates to a pressure measuring device, in particular to a differential pressure transmitter. Background technique [0002] Pressure measurement is one of the most basic industrial measurements. The earliest and most typical pressure measurement instrument is the spring tube pressure gauge. According to the principle of elastic deformation, the change of pressure is directly amplified by the bending degree of the asymmetric interface copper alloy tube, transmission and Indicate it. With the rapid development of advanced manufacturing technology, new material technology, microelectronics technology and information technology, non-electrical measurement technology has made a huge leap in the way of pressure measurement. It has developed from simple mechanical measurement (such as spring tube type, diaphragm type, diaphragm pressure gauge) to various pressure sensors of different principles, such as resistance strain type, capacitive type, ...

Claims

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Application Information

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IPC IPC(8): G01L13/00
Inventor 郭健
Owner 四川奇胜科技有限公司
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