The First CAN Pressure Sensor That Meets All the Requirements for Automotive Measurement Technology
IPETRONIK, one of the world’s leading manufacturers of measurement technology for the automotive industry, has partnered with the Swiss company STS Sensor Technik Sirnach AG, a specialist for pressure sensors of the highest grade, to develop the “CANpressure” intelligent measurement module. The highly compact CANpressure device combines a pressure sensor with all the functionality offered by IPETRONIK’s familiar range of CAN-bus measurement modules. For the first time, the new pressure sensor module now makes it possible to process pressure data directly within the measurement chain without having to take a detour via a voltage input.
The sensor module, which is housed in a stainless steel enclosure with dimensions of just 76 mm X 24 mm (L x Ø) and is protected to a rating of IP68, features a piezoresistive pressure measurement cell. Sensor modules are offered for measuring absolute pressure as well as relative pressure in the range from 200 mbar to over 1,000 bar. Throughout the entire operating temperature range from –40 °C to +125 °C, the sensors perform linearized, temperature-compensated and calibrated measurements at an accuracy of significantly <0.5% (FS). CANpressure modules feature a long-term stability of <0.1% (FS) per year and overload protection that is three to five times greater than the measurement range. The integrated signal processing with a digital signal processor (DSP) supplies digitally filtered pressure values at user-defined sampling rates of up to 2 kHz. The measurement data is transmitted via the CAN 2.0B bus, which is completely galvanically isolated. One important advantage is the possibility of performing synchronized measurements within the system, because IPETRONIK’s own CAN bus synchronization can also be activated for CANpressure with a central 2-kHz clock line. For further processing and evaluation of the data, the devices have been prepared for linking to the IPETRONIK’s IPEconf software tool as well as to INCA (ETAS), DIAdem and other commonly used software packages.
As with IPETRONIK’s M-modules, power is supplied in a proven fashion via LEMO connectors in a range from 6 VDC to 36 VDC, and it is completely galvanically isolated from the measurement electronics. Typical power consumption is specified at 600 mW. The sensors are connected via standard G1/4 inch internal/external screw thread (<250 bar) or M14 x 1.5 (>250 bar). Other connection options can be supplied if required. Up to nominal pressures of approximately 200 bar, the device offers direct media compatibility with all conventionally used fluids (especially brake fluid, fuel, etc.). The pressure range and connection options are assembled to customer specifications, even for small delivery quantities.
“Our customers have been waiting for years now for a CAN pressure sensor that fulfills all the requirements for automotive measurement technology,” said Andreas Wocke, company officer at IPETRONIK. “CANpressure from IPETRONIK ends the waiting period.”
“CANpressure now makes it possible to integrate pressure measurement points directly into the engine compartment in a way that is easy to configure and adjust. The CAN bus reduces wiring complexity and thus the overall expense of the application,” adds Andreas Geh, head of sales & marketing at IPETRONIK. “The specifications speak for themselves. They reflect IPETRONIK’s commitment to uniting technical capabilities with the users’ practical needs.”
The standardized CAN protocol simplifies networking within the overall system and can even reduce the price per measuring point by as much as 50 percent compared to the option of employing “a voltage measurement module (such as SIM-SENS), plus a cable, plus a sensor, plus work time.” As is customary at IPETRONIK, the new pressure sensor modules are 100-percent tested throughout the entire temperature range. Thanks to its outstanding specifications and wide range of applications, CANpressure is also interesting for other areas of industry that place similarly stringent demands on measurement devices. CANpressure is the first module from a model family that, following additional developmental stages, will also include versions with higher sampling rates and open protocols, such as XCP. Thus, this innovative solution is perfectly positioned to also meet future measurement technology requirements in manufacturer-agnostic system concepts.
The sensor module, which is housed in a stainless steel enclosure with dimensions of just 76 mm X 24 mm (L x Ø) and is protected to a rating of IP68, features a piezoresistive pressure measurement cell. Sensor modules are offered for measuring absolute pressure as well as relative pressure in the range from 200 mbar to over 1,000 bar. Throughout the entire operating temperature range from –40 °C to +125 °C, the sensors perform linearized, temperature-compensated and calibrated measurements at an accuracy of significantly <0.5% (FS). CANpressure modules feature a long-term stability of <0.1% (FS) per year and overload protection that is three to five times greater than the measurement range. The integrated signal processing with a digital signal processor (DSP) supplies digitally filtered pressure values at user-defined sampling rates of up to 2 kHz. The measurement data is transmitted via the CAN 2.0B bus, which is completely galvanically isolated. One important advantage is the possibility of performing synchronized measurements within the system, because IPETRONIK’s own CAN bus synchronization can also be activated for CANpressure with a central 2-kHz clock line. For further processing and evaluation of the data, the devices have been prepared for linking to the IPETRONIK’s IPEconf software tool as well as to INCA (ETAS), DIAdem and other commonly used software packages.
As with IPETRONIK’s M-modules, power is supplied in a proven fashion via LEMO connectors in a range from 6 VDC to 36 VDC, and it is completely galvanically isolated from the measurement electronics. Typical power consumption is specified at 600 mW. The sensors are connected via standard G1/4 inch internal/external screw thread (<250 bar) or M14 x 1.5 (>250 bar). Other connection options can be supplied if required. Up to nominal pressures of approximately 200 bar, the device offers direct media compatibility with all conventionally used fluids (especially brake fluid, fuel, etc.). The pressure range and connection options are assembled to customer specifications, even for small delivery quantities.
“Our customers have been waiting for years now for a CAN pressure sensor that fulfills all the requirements for automotive measurement technology,” said Andreas Wocke, company officer at IPETRONIK. “CANpressure from IPETRONIK ends the waiting period.”
“CANpressure now makes it possible to integrate pressure measurement points directly into the engine compartment in a way that is easy to configure and adjust. The CAN bus reduces wiring complexity and thus the overall expense of the application,” adds Andreas Geh, head of sales & marketing at IPETRONIK. “The specifications speak for themselves. They reflect IPETRONIK’s commitment to uniting technical capabilities with the users’ practical needs.”
The standardized CAN protocol simplifies networking within the overall system and can even reduce the price per measuring point by as much as 50 percent compared to the option of employing “a voltage measurement module (such as SIM-SENS), plus a cable, plus a sensor, plus work time.” As is customary at IPETRONIK, the new pressure sensor modules are 100-percent tested throughout the entire temperature range. Thanks to its outstanding specifications and wide range of applications, CANpressure is also interesting for other areas of industry that place similarly stringent demands on measurement devices. CANpressure is the first module from a model family that, following additional developmental stages, will also include versions with higher sampling rates and open protocols, such as XCP. Thus, this innovative solution is perfectly positioned to also meet future measurement technology requirements in manufacturer-agnostic system concepts.
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