Analogue, Mixed Signal, LSI

Low-profile pressure transmitters

29 January 2020 Analogue, Mixed Signal, LSI

TDK has expanded its portfolio with new EPCOS pressure transmitters whose performance profiles are specially tailored to the requirements of Industry 4.0. These low-profile pressure sensors are characterised by their compact design, high accuracy and excellent long-term stability.

Big data is the prerequisite for Industry 4.0 solutions and processes. The basis for generating the required data in industrial processes and environments is the various types of sensors. The demand for pressure sensors and transmitters is increasing accordingly.

The leading basic pressure sensing technologies for MEMS are based on the piezoresistive and capacitive principles. While the latter is mainly suitable for consumer applications, the strengths of the piezoresistive principle are especially important for automotive and industrial applications.

Piezoresistive pressure sensors excel in terms of the following key performance parameters:

High absolute accuracy.

• Low temperature coefficient.

• Low temperature hysteresis.

• High robustness against different media.

• High long-term stability.

Absolute, gauge and differential measuring methods are used for a wide variety of tasks and requirements in industrial pressure measurement. These methods can be realised particularly well with piezoresistive MEMS technology.

Ultra-flat and networkable

Figure 1.

The new EPCOS series of low-profile pressure transmitters specially designed for Industry 4.0 applications features an extremely flat insertion height of only 6 mm and a footprint of 24 x 26 mm; with feedthroughs for simple, maintenance-friendly screw mounting (Figure 1).

This transmitter series is designed for a wide range of maximum rated pressures from 16 mbar to 7 bar FS (full scale). In the temperature range from -25°C to +85°C it achieves an accuracy of ±1% FS. The transmitters can be used for a wide range of applications, and installation is very simple as only two screws are required.

The integrated SPI interface with a resolution of 16 bits enables simple implementation in digital Industry 4.0 architectures. Thanks to the two connectors integrated in the transmitters, they can be easily networked in daisy chain topologies. These transmitters are optimised for differential pressure measurement that, for example, is used in the predictive maintenance of filter systems, pump control or gas flows.

MiniCell – robust, versatile and accurate

Figure 2.

The MiniCell family of miniaturised pressure transmitters is suitable for a wide range of industrial applications, especially in harsh environments (Figure 2). They cover a pressure range from 0,5 to 10  and can be operated at temperatures between -40°C and +140°C. They also achieve an accuracy of sub-1,5% FS over the entire temperature range and lifetime.

Particularly noteworthy is the high media resistance of these transmitters. It is made possible by a stainless steel diaphragm, which transmits the pressure to the sensor element via oil-filled and media-separated sensor cells. This enables the pressure measurement of aggressive liquids and gases. Despite their great robustness, these transmitters have miniaturised insertion height of just 11 mm and footprint of 16,2 x 19,6 mm.

Types available are for absolute, relative or differential measurement. The analog interface offers an output signal of 0,5 to 4,5 V. Together, these analog and digital solutions provide TDK with a platform of rugged and, above all, low-profile transmitters for a wide range of Industry 4.0 applications.


Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Electrocomp launches new website
25 March 2020, Electrocomp , News
Electrocomp is inviting visitors to explore its new website, which has been designed to offer a user-friendly experience with improved navigation and functionality while allowing customers to see their ...

MEMS-based environmental pressure sensors
25 March 2020, Avnet South Africa , Analogue, Mixed Signal, LSI
Bourns Sensors & Controls’ product line is introducing four new series of environmental sensors based on microelectromechanical systems (MEMS) technology. These four new series are designed for the customer ...

Elegant and functional handheld enclosures
25 March 2020, Electrocomp , Enclosures, Racks, Cabinets & Panel Products
Hammond Electronics has launched its new 1552 family of handheld enclosures. Initially available in six sizes, the IP54 rated UL94-V0 flame-retardant ABS enclosure features an ergonomic design that fits ...

Rectifier chip diodes
25 March 2020, Electrocomp , Circuit & System Protection
Portable electronics, communications, computing and video equipment manufacturers are challenging the semiconductor industry to develop increasingly power efficient solutions with smaller electronics ...

SMD fuse with automotive qualification
25 March 2020, Electrocomp , Circuit & System Protection
Bourns announced the introduction of two new series of AEC-Q200 compliant SMD fuses to complement its already successful line of SinglFuse SMD Fuse products.    The new Model SF-0603HIA-M and SF-1206HIA-M ...

Innovative power capacitor technologies for wide band-gap semiconductors
26 February 2020, Electrocomp , Passive Components
Conventional semiconductors based on silicon are being replaced by wide band-gap (WBG) technologies based on GaN (gallium nitride) and SiC (silicon carbide). These demand a great deal from the passive ...

Electrocomp launches new website
26 February 2020, Electrocomp , News
Electrocomp is inviting visitors to explore its new website, which has been designed to offer a user-friendly experience with improved navigation and functionality while allowing customers to see their ...

Automotive-compliant power transformers
26 February 2020, Electrocomp , Passive Components
Bourns’ inductive components product line is introducing the high clearance/creepage distance isolation power transformer Model HCT Series. These AEC-Q200 compliant high-voltage isolation push-pull transformers ...

Ultra-low pressure sensor
26 February 2020, Electrocomp , Analogue, Mixed Signal, LSI
Bourns’ Sensors & Controls product line is introducing a new series of pressure sensors based on microelectromechanical systems (MEMS) technology. The Model BPS125 is 3,3 V capable and is calibrated for ...

Arm Cortex-M33-based MCUs
29 January 2020, EBV Electrolink , Analogue, Mixed Signal, LSI
NXP Semiconductors announced the availability of its LPC552x/S2x microcontroller (MCU) family, further extending its efficient LPC5500 MCU series with the second of seven families planned for the series. ...