Yuanben Sensor Engaged in magnetoelectric sensor design & production, a professional high-tech magnetic sensor manufacturer.

Research on ECVS Turbocharger Speed Measurement System

2025-05-15

The ECVS turbocharger speed measurement system is a proven robust, reliable, simple, accurate and cost-effective solution, which has more advantages than optical or magnetic sensing systems. This system is based on the principle of 1MHz pulse induction with eddy current identification function. It detects and counts the compressor blades separately through the electromagnetic sensor installed on the compressor, thereby generating a standard TTL/CMOS output signal. Its maximum wheel speed measurement range can reach 400,000 rpm, while the minimum operating speed is 390 rpm. This system adopts an open architecture and modular design, and can be easily integrated into the existing measurement systems. For the impeller material of the turbine compressor, the system preferentially recommends the use of aluminum. If titanium alloy wheels are used, separate tests are required to verify their compatibility with ECVS sensors.

Research on ECVS Turbocharger Speed Measurement System 1

The ECVS turbocharger speed measurement system, with its high sensitivity, can support a distance between the sensor and the rotating blades within the blade thickness range of 1 to 0.6 millimeters. In addition, this system is compatible with a variety of sensors and can be flexibly adapted according to the different needs of users, based on the length of the sensor head and the type of thread, thereby meeting diverse application scenarios.

Sensor specification:

Temperature cables and electronic products: -40 °C to +125°C

2. Sensor tip: Standard -40 °C to +250°C

3. Sensor head: H-type -40 °C to +270°C

4. Fine thread M5x0.5 in various lengths ranging from 25mm to 60mm

5. Standard thread M5x0.8, with lengths ranging from 40mm to 70mm

6. The length of the sensor element and its cable: approximately 0.75 meters from the vehicle body to the ASIC, approximately 0.12 meters from the ASIC to the connector, the total length of the sensor element is approximately 1.00 meters, and the maximum length of the extension cable is 10 meters.

*It can withstand excessively high temperatures for a short period of time*

Specifications of signal conditioning box

Aspect	105 x 85 x 30 mm
Signal conditioning -BX (RS-232 option) -BD (Display Options)	36mA @ 24 V +20mA 59mA @ 24 V +20mA
Number of leaves	1 - 31
Digital output	TTL/CMOS(One pulse for every N blades, N = 1 to 31)
Analog output	0.5 ~ 4.5V
Temperature	-40°C ~ +85°C
Power supply voltage	9 to 36 volts of direct current
	** With sensors