The PICOTURN Family demonstrates the wide range of applications covered by precision time measurements
Picoturn® comes in two different flavours. The first generation system PICOTURN®-1G with passive sensor, and the second generation system PICOTURN®-2G with fully integrated smart sensor.
PICOTURN PTCM
The PICOTURN PTCM is compact and ruggedized. Rated as IP67 proof, it is ideal for on vehicle fitments, yet is capable of minimum compressor wheel speed measurement of just 200 rpm, to a maximum of 400,000 rpm.
PICOTURN - 2nd Generation
Accurate Technologies Inc. (ATI) offers the PICOTURN-2G rotational speed sensor for turbochargers. Compared to optical or magnetic sensing systems, the PICOTURN system is proven as a rugged, reliable, simple, accurate and cost effective solution.
PICOTURN - 1st Generation
Accurate Technologies Inc. (ATI) offers the PICOTURN 1G rotational speed sensor for turbochargers. Compared to optical or magnetic sensing systems, the PICOTURN system is proven as a rugged, reliable, simple, accurate and cost effective solution.
Smart Sensors for Measuring Turbocharger Speed
Compact and cost-effective, PICOTURN sensors incorporate well-proven technology whose measuring principle is based on one-megahertz pulse induction and eddy current discrimination. Latest developments from PICOTURN include H-type sensor versions, optimized for higher temperature / sensitivity applications, confirming the brand’s technical leadership in this sector.
- Precise measurement of rotational speeds up to 400,000 rpm
- Sensing directly at the compressor wheel
- Support of aluminum and titanium wheels
- Enables safe (comfortable) spacing between sensor and wheel to reduce risk of contact or damage
- Extremely small package
- High-operating temperature of up to 270 °C
- Measurement unaffected by dirt, oil and dust
- Improved safety by eliminating the need for magnetized nuts that can come loose and cause damage
- Self-adjustment simplifies mounting
- Digital and/or analog output
- Suitable even for small compressor wheels (32 mm)
- Suitable for single stage and two stage systems
PICOTURN is a pure digital solution for sensing the rotational speed of a turbochargers compressor wheel. The special kind of measurement uses acam's TDC (Time-to-Digital Converter) technology to detect the attenuation of an inductance through eddy currents, and makes the system perfectly suited for the rough environmental conditions that can be found in an engine.
The core of the system is represented by a TDC measurement unit followed by a DSP unit that calculates the rotational speed in the range from 200 rpm up to 400.000 rpm. The modular and compact system is easy to mount and especially designed for easy sensor exchange. No modification of rotating parts is necessary. This makes the PICOTURN product family a potential basis for cost effective standard or customized solutions, perfectly suited for the specific needs to measure the rotational speed of turbochargers.
PICOTURN Customer Service
Accurate Technologies (ATI) is the principal distributor of PICOTURN turbospeed sensors for automotive use. As such, customers benefit from a full technical support including a recommended annual calibration of sensors to ensure continued optimized operation.