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Strain-gauge type pressure sensor

A pressure sensor, strain gauge technology, applied in the direction of measuring fluid pressure, measuring fluid pressure through electromagnetic components, instruments, etc., can solve problems affecting the integrity and reliability of transmitters

Active Publication Date: 2015-12-23
SENSATA TECHNOLOGIES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the configuration of the internal components of the transmitter can affect the integrity and reliability of the transmitter

Method used

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  • Strain-gauge type pressure sensor
  • Strain-gauge type pressure sensor
  • Strain-gauge type pressure sensor

Examples

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Embodiment Construction

[0029] figure 1 A transmitter 10 is shown having a pressure port 12 and an upwardly extending housing 14 attached to the base 16 of the pressure port and terminating at its upper end 18 with electrical contacts or connectors through which electrical Contacts or connectors can transmit and utilize electrical output signals. In this embodiment, the electrical contacts may be in the form of contact pads 20 accessible through sockets 22 formed in the upper end of the device.

[0030] Such as Figure 4 , Figure 8 and Figure 9 As shown, the pressure port 12 can be formed as a single piece from a variety of materials, with 17-4 stainless steel being the preferred material. The pressure port includes a base 16 and an upwardly extending neck 24 . A lower portion of the base 16 and neck 24 is formed to include a fluid passage 26 terminating in a closed upper end 28 . The lower portion of the neck is formed to include along its sides a flat outer surface 30 to which one or more s...

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PUM

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Abstract

The invention discloses a strain-gauge type pressure sensor, a pressure transmitter, and a method for manufacturing the pressure transmitter. The pressure transmitter assembly comprises a pressure response type membrane and an electronic packaging part. The sensing element is installed on the pressure response type membrane, and the electronic packaging part comprises a lead bonding pad which is suitable to be electrically connected to a sensing element through lead bonding equipment. The membrane and the lead bonding pad are supported in the transmitter, so as to enable the positions of the membrane and the lead bonding pad to be close to each other and to be located in planes which are not intersected with each other.

Description

technical field [0001] The present invention relates to a pressure transmitter that implements strain gauge technology for detecting pressure changes in a fluid system to generate an electrical signal, and packaging structures and construction methods for such transmitters. Background technique [0002] Pressure sensing transmitters incorporating microfused silicon strain gauge technology have been increasingly used in many environments and for a variety of applications. The pressure measurement transmitters described above are often used in environments where space constraints are a factor, and it is therefore desirable for such transmitters to be small in size, for example the approximate diameter may be less than about 1 centimeter (e.g. 6-8 mm) and the length is dia. About 2 to 3 times. Among the many applications for such transmitters are applications in the automotive industry, for example for detecting pressure in fuel systems, braking systems, vehicle stability syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/00
Inventor N·S·彼得拉卡
Owner SENSATA TECHNOLOGIES INC