Product category:
Engineering Industry Reports and Surveys
News Release from: Venture Development Corp
Edited by the Engineeringtalk Editorial
Team on 13 April 2006
Electronic pressure transmitters get
smarter
A new study finds that in 2005 the worldwide electronic pressure transmitter market for process applications was US $1689 million.
A new study by Venture Development Corporation (VDC) finds that in 2005 the worldwide electronic pressure transmitter market for process applications was US $1689 million, with 88.6% in smart devices, 10.4% in traditional Analog Devices,and 1.0% in low-cost/nonrepairable types The smart device share is expected to increase to 91.4% in 2010, when the worldwide market for these applications is expected to reach almost US $2.1 billion
This additional increase is expected to come from displacement of traditional analogue output types in applications.
A "smart" pressure transmitter combines sensing technology and "intelligent" electronics in a single package.
The pressure sensor is typically a piezoresistive, capacitance, or other element that measures differential, gauge, or absolute pressure.
The "intelligent" electronics typically provide one or more of the following "smart" features: remote calibration and ranging; self calibration; digital communication interface; digital output signal; performs self-diagnostics; pressure compensation; and temperature compensation.
The "smart" electronics in the transmitter may include a microprocessor that calculates the digital values of the output signal proportional to the measured variable.
The digital signal may be sent as an output over a communication network.
The use of microprocessors in smart transmitters can enhance accuracy by compensating the output signals for the effects of ambient temperature changes, static pressure variations, and changing operating conditions.
Increasing use of CMOS and ASICs also is improving compensation capabilities.
One of the chief advantages of intelligent transmitters is that calibration can be checked and adjusted from remote locations.
Multirange smart transmitters also have the capability of having the operating range selected by remote control.
Hart is expected to still account for the dominant shipment share in 2010, however, with a somewhat lower share as other buses/networks become more popular.
In addition to Hart, declines in shipment shares of proprietary protocols, such as Yokogawa's "Brain" and Honeywell DE, are expected as vendors increase offerings of transmitters equipped with open protocols such as Foundation fieldbus and Profibus, and as these gain acceptance among users.
It is expected that wireless Ethernet connectivity will begin during the forecast period, and that this communication technology will account for 1.3% of shipments in 2010.
Digital communication is expected to continue increasing in importance in pressure-sensing marketplaces.
The process transmitter segment is currently receiving attention because of expanding implementation of open standard networking in process controls.
As open standards are implemented to a greater degree, the process pressure transmitter segment is expected to adopt digital communications even faster than in the past because of the perceived technical advantages and cost effectiveness of transmitters capable of digital communications.
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