Current Speed Sensors
Description
Current speed sensors are devices designed to detect and measure the speed of an object by converting the speed into an easily measurable output, typically a voltage. These sensors are crucial in providing precise speed measurements, which are essential for various engineering and technical applications.
Working Principle
Current speed sensors operate by detecting changes in magnetic fields or current flow, which are then converted into a proportional voltage output. For instance, a current sensing resistor, a common type of current sensor, functions as a current-to-voltage converter. By inserting a resistor into the current path, the current is converted to voltage in a linear manner, following the equation ( V = I \times R ). This principle allows for high measurement accuracy and is useful in monitoring and controlling speed in various systems.
Applications
Current speed sensors are widely used in applications where precise speed measurement is critical. For example, Hall-effect speed sensors are commonly employed in dynamometers and traction control systems. They are also used in wind turbines for speed measurement and in radar systems for speed detection. These applications benefit from the sensors' ability to provide accurate and reliable speed data.
Advantages over other Speed Sensors
Current speed sensors, such as those using Hall-effect technology, offer several advantages over other types of speed sensors. They provide precise measurements of speed and direction without requiring physical contact, which reduces wear and tear and increases durability. Additionally, variable reluctance (VR) speed sensors, which do not require an external power source, are particularly advantageous in high-temperature and harsh environments due to their simple design and durability.
Limitations
One limitation of current speed sensors, particularly VR sensors, is their performance at low speeds. At slow speeds, the signal produced can become noisy and difficult to condition, which may affect the accuracy of the measurements. This limitation is due to the nature of the signal processing, which is done at a distance from the sensor.
Considerations
When selecting and using current speed sensors, several factors should be considered:
- Initial Costs: Current speed sensors, especially those with complex designs like Hall-effect sensors, may have higher initial costs compared to simpler sensors like VR sensors.
- Operating Expense: The operating expenses can vary depending on the sensor type and application environment. Sensors that require external power sources may incur additional energy costs.
- Durability: Sensors designed for harsh environments, such as VR sensors, offer greater durability and can withstand high temperatures and challenging conditions.
- Accuracy: Current speed sensors generally provide high measurement accuracy, which is crucial for applications requiring precise speed data.
- Replacement and Maintenance Costs: Non-contact sensors like Hall-effect sensors typically have lower maintenance costs due to reduced wear and tear. However, the need for periodic calibration and potential replacement should be factored into the overall cost considerations.
from ifm efector inc.
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via potentiometer. For direct connection to a PLC. Reduced installation complexity. Learn more. View other products in this... [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 3600
- Sensor Technology: Inductive
- Operating Temperature: -13 to 176
from ifm efector inc.
For applications in hazardous areas. Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via potentiometer. For direct connection to a PLC. Learn more. View other products in... [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 3600
- Sensor Technology: Inductive
- Operating Temperature: -4 to 140
from ifm efector inc.
Easy setting of the switch point via potentiometer. Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Learn more. View other products in this family of sensors. From May 1st 2025, products produced in EU and... [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 3600
- Sensor Technology: Inductive
- Operating Temperature: -13 to 176
from ifm efector inc.
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link. Learn more. View other products in this family of sensors. [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -40 to 185
from ifm efector inc.
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link. Learn more. View other products in this family of sensors. [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -40 to 185
from ifm efector inc.
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link. Learn more. View other products in this family of sensors. [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 14400
- Sensor Technology: Inductive
- Operating Temperature: -40 to 185
from ifm efector inc.
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link. Learn more. View other products in this family of sensors. [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 9600
- Sensor Technology: Inductive
- Operating Temperature: -13 to 176
from ifm efector inc.
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via teach button or IO-Link. Reduced installation complexity. With IO-Link for transmission of signals and diagnostic data. [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 3 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -13 to 185
from ifm efector inc.
For applications in hazardous areas. Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via potentiometer. With IO-Link for transmission of signals and diagnostic data. From... [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 3 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -4 to 140
from FineTek
EDX Speed Monitor use various electromechanical and electronic technology to protect equipment and personnel. These safety devices include: – SRT belt misalignment switch – SRS safety stop switch – ED series speed monitor. EDX Speed Monitor. The SRS/SRT/ED belt conveyor safety... [See More]
- Output: Current; Switched / Alarm
- Power Requirements: AC Powered
- Rotary Speed Range: 1 to 999
from Electro-Sensors, Inc.
4-20 mA Shaft Speed Sensors. Features. • 2-wire, loop-powered 4-20 mA analog output. • No user calibration: works right out of the box. • Works with shaft-mounted pulser targets (disc/wrap). • Rugged stainless steel M18x1 housing. • Reverse-wiring protected. • UL... [See More]
- Output: Current
- Operating Temperature: -4 to 185
- Accuracy: 0.2500
- Power Requirements: DC Powered
from Sensoronix, Inc.
Non-contact magnetic sensors that measure the collapse of magnetic field due to the interruption by a ferrous gear tooth. These sensors provide two analog signal outputs (sine wave) that does not require an outside power source. This sensor is suitable for speed sensing with a range from 30 to 1000... [See More]
- Output: Voltage; Current; Resistance
- Linear Speed Range: 32 to 1000
- Sensor Technology: Variable Reluctance
- Operating Temperature: 32 to 158
from ifm electronic gmbh
Easy setting of the switch point via potentiometer. Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 3600
- Sensor Technology: Inductive
- Operating Temperature: -13 to 176
from Micropac Industries, Inc.
Features: · Wide operating temperature range -55 ºC to +150 ºC. · High magnetic sensitivity. · Wide operating voltage range 18 to 32 V. · Chopper stabilized amplifier minimizes amplifier. offset resulting in improved temperature stability. · MIL-STD-202... [See More]
- Output: Current; Switched / Alarm
- Operating Temperature: -67 to 302
- Sensor Technology: Hall Effect
- Power Requirements: DC Powered
from ZF Electronic Systems Pleasant Prairie, LLC
Hall Effect devices designed for use in applications where ferrous edge detection/near zero speed sensing is needed. They provide a sinking current output. Features. From near zero speed up to 15 kHz sensing capability. 10 bit dynamic threshold direction offers: Automatically adjusting magnetic... [See More]
- Output: Current
- Rotary Speed Range: 900000
- Sensor Technology: Hall Effect
- Operating Temperature: 257
from Baumer Ltd.
Baumer magnetic sensors are based on the Hall principle or on magneto-resistive circuits. Since they contain no moving components such as ball bearings, they are extremely dirt resistant and show no evidence of operational wear. Magnetic sensors are characterized by: Precise, absolute sensing of... [See More]
- Output: Current
- Operating Temperature: -40 to 248
- Sensor Technology: Hall Effect
- Power Requirements: DC Powered
from Electro-Sensors, Inc.
4-20 mA Shaft Speed Sensors. Features. • 2-wire, loop-powered 4-20 mA analog output. • No user calibration: works right out of the box. • Works with shaft-mounted pulser targets (disc/wrap). • Rugged stainless steel M18x1 housing. with integral conduit attachment. •... [See More]
- Output: Current
- Power Requirements: DC Powered
- Operating Temperature: -4 to 176
- Body Shape: Cylindrical; Threaded Barrel
from Sensoronix, Inc.
Non-contact magnetic sensors that measure the distortion of magnetic field created by a ferrous target. Quadrature sensors provide two 90 º out of phase digital outputs to record speed and direction. When the target wheel or gear is rotating clockwise, the output signal # 1 leads output signal... [See More]
- Output: Voltage; Current; Resistance
- Operating Temperature: -4 to 221
- Sensor Technology: Hall Effect
- Power Requirements: DC Powered
from ifm electronic gmbh
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -40 to 185
from ZF Electronic Systems Pleasant Prairie, LLC
Hall Effect devices designed for use in applications where ferrous edge detection/near zero speed sensing is needed. They provide a sinking current output. Features. From near zero speed up to 15 kHz sensing capability. 10 bit dynamic threshold direction offers: Automatically adjusting magnetic... [See More]
- Output: Current
- Rotary Speed Range: 900000
- Sensor Technology: Hall Effect
- Operating Temperature: 257
from Baumer Ltd.
Baumer magnetic sensors are based on the Hall principle or on magneto-resistive circuits. Since they contain no moving components such as ball bearings, they are extremely dirt resistant and show no evidence of operational wear. Magnetic sensors are characterized by: Precise, absolute sensing of... [See More]
- Output: Current
- Operating Temperature: -13 to 167
- Sensor Technology: Magnetoresistive
- Power Requirements: DC Powered
from Electro-Sensors, Inc.
Shaft Speed Sensor with Relay. Features. • Self-contained system with sensor and switch. • Relay can be set for over-speed or under-speed. • Housing is explosion proof and water resistant. • 4-20 mA output directly proportional to shaft speed. • Provides real-time preventive... [See More]
- Output: Current
- Rotary Speed Range: 0.7500 to 9999
- Sensor Technology: Hall Effect
- Accuracy: 0.7000
from Sensoronix, Inc.
Non-contact magnetic sensors that measure the distortion of magnetic fields and thus provide precise measurements of speed and direction. Output #1 is digital square wave and measures the speed of target wheel or gear. Output #2 is a DC level that when the target wheel rotates clockwise, the output... [See More]
- Output: Voltage; Current; Resistance
- Operating Temperature: -4 to 221
- Sensor Technology: Hall Effect
- Power Requirements: DC Powered
from ifm electronic gmbh
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -40 to 185
from ZF Electronic Systems Pleasant Prairie, LLC
Hall Effect devices designed for use in applications where ferrous edge detection/near zero speed sensing is needed. They provide a sinking current output. Features. From near zero speed up to 15 kHz sensing capability. Plastic flange-mount housing. Compatible with unregulated power supply. ROHS... [See More]
- Output: Current
- Rotary Speed Range: 900000
- Sensor Technology: Hall Effect
- Operating Temperature: 257
from Baumer Ltd.
Baumer magnetic sensors are based on the Hall principle or on magneto-resistive circuits. Since they contain no moving components such as ball bearings, they are extremely dirt resistant and show no evidence of operational wear. Magnetic sensors are characterized by: Precise, absolute sensing of... [See More]
- Output: Current
- Operating Temperature: -13 to 167
- Sensor Technology: Magnetoresistive
- Power Requirements: DC Powered
from ifm electronic gmbh
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. With IO-Link for transmission of signals and diagnostic data. Easy parameter setting via IO-Link [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 5 to 14400
- Sensor Technology: Inductive
- Operating Temperature: -40 to 185
from ZF Electronic Systems Pleasant Prairie, LLC
Hall Effect devices designed for use in applications where ferrous edge detection/near zero speed sensing is needed. The single Hall design is immune to alignment issues allowing unlimited mounting positions. They provide a sinking current output. Features. From near zero speed up to 15 kHz sensing... [See More]
- Output: Current
- Rotary Speed Range: 900000
- Sensor Technology: Hall Effect
- Operating Temperature: 302
from Baumer Ltd.
Baumer magnetic sensors are based on the Hall principle or on magneto-resistive circuits. Since they contain no moving components such as ball bearings, they are extremely dirt resistant and show no evidence of operational wear. Magnetic sensors are characterized by: Precise, absolute sensing of... [See More]
- Output: Current
- Operating Temperature: -13 to 167
- Sensor Technology: Magnetoresistive
- Power Requirements: DC Powered
from ifm electronic gmbh
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via teach button. For direct connection to a PLC. Reduced installation complexity. phase-out article. Discontinuation date:... [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 3 to 6000
- Sensor Technology: Inductive
- Operating Temperature: -4 to 176
from ZF Electronic Systems Pleasant Prairie, LLC
Hall Effect devices designed for use in applications where ferrous edge detection/near zero speed sensing is needed. The single Hall design is immune to alignment issues allowing unlimited mounting positions. They provide a sinking current output. Features. From near zero speed up to 15 kHz sensing... [See More]
- Output: Current
- Rotary Speed Range: 900000
- Sensor Technology: Hall Effect
- Operating Temperature: 284
from ifm electronic gmbh
Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via teach button or IO-Link. Reduced installation complexity. With IO-Link for transmission of signals and diagnostic data [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 3 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -13 to 185
from ZF Electronic Systems Pleasant Prairie, LLC
Has two Hall Effect sensors; one detects speed and the other detects direction of movement of gear teeth. The outputs are open collector transistors. The Speed output goes high (on) when sensing the leading edge of a tooth and low (off) on the trailing edge of the tooth when run against a standard... [See More]
- Output: Current
- Rotary Speed Range: 900000
- Sensor Technology: Hall Effect
- Operating Temperature: 257
from ifm electronic gmbh
For applications in hazardous areas. Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via teach button. For direct connection to a PLC. phase-out article. Discontinuation... [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 3 to 6000
- Sensor Technology: Inductive
- Operating Temperature: -4 to 122
from ZF Electronic Systems Pleasant Prairie, LLC
Has two Hall Effect sensors; one detects speed and the other detects direction of movement of gear teeth. The outputs are open collector transistors. Each Hall Effect sensor provides one square wave pulse for each tooth. The Speed output goes high (on) when sensing the leading edge of a tooth and... [See More]
- Output: Current
- Rotary Speed Range: 900000
- Sensor Technology: Hall Effect
- Operating Temperature: 257
from ifm electronic gmbh
For applications in hazardous areas. Reliable non-contact monitoring of the rotational speed with regard to underspeed. 2 in 1: speed sensor and evaluation in one compact housing. Easy setting of the switch point via teach button or IO-Link. With IO-Link for transmission of signals and diagnostic... [See More]
- Output: Current; Switched / Alarm
- Rotary Speed Range: 3 to 24000
- Sensor Technology: Inductive
- Operating Temperature: -4 to 140
from ifm electronic gmbh
Non-contact detection of metal toothed wheels. For very high switching frequencies up to 15,000 Hz. Precise detection of the toothed wheel. Wide operating temperature range. Quick installation with flange adapters [See More]
- Output: Current
- Operating Temperature: -25.6 to 284
- Sensor Technology: Magnetoresistive
- Power Requirements: DC Powered