Sensors
Sensors
AI-Tek Instruments, located in Cheshire, CT, USA, is a certified AS9100/ISO 9001 company that manufactures speed sensors for industrial, automotive, and aerospace applications. Their catalog lists standard speed sensors designed for various environments, focusing on reliability and performance under challenging conditions.
AI-Tek uses variable reluctance and Hall effect technologies to convert motion into electronic signals, selected based on application requirements to ensure long-term reliability.
These sensors are noted for their reliability, ease of installation, long lifespan, and self-powered operation, suitable for diverse environments from consumer products to aircraft engine controls.
The guide details specifications such as thread size, part number, output voltage, termination type, sensor length, agency approval, and temperature rating to aid in selecting the right sensor for specific applications.
Factors affecting sensor output voltage include surface speed, gap, target size, and load impedance. The catalog includes formulas and tables for calculating expected output voltage for different configurations.
A step-by-step example is provided for calculating the output voltage of a sensor in a specific application, including surface speed, peak-to-peak output voltage, and necessary corrections.
AI-Tek offers a wide range of sensors with various options available through distributors. Customers are encouraged to contact distributors for designs that may meet specific needs if catalog items do not suffice.
Each sensor model is specified with parameters such as output voltage, DC resistance, inductance, output polarity, operating temperature range, lead or cable length, and net weight. Performance curves based on gear specifications are included.
Sensors are categorized into thread families with specific lengths and performance characteristics, listing part numbers and dimensions for easy selection.
Some sensors are designed for high sensitivity and high-temperature applications, suitable for demanding environments.
Certain models are UL and CSA listed for hazardous locations and are ATEX and IEC Ex certified for specific zones and gas groups.
The Side Look Sensor (SLS) is highlighted for Allison automatic transmissions, providing electronic transmission speed inputs to engine control systems.
These sensors are designed for industrial use, offering durability and flexibility. They operate within a power supply voltage range of 4.5 - 24 Vdc and a maximum current of 50 mA, producing a square wave output voltage compatible with TTL inputs.
Available in single and dual output versions, these sensors meet IEC 77 Standards for European Railroad Applications and include features like reverse voltage protection and extended temperature range.
AI-Tek's Hall Effect Sensors are suitable for engine timing and other industrial uses, capable of sensing changes in target movement across a wide frequency range.
Several part numbers are listed for different sensor configurations, including variations in thread size, termination type, and sensor length.
Sensors withstand harsh conditions, with an operating temperature range of -40°C to +125°C, tested for thermal shock, salt spray, humidity, dielectric strength, vibration, and shock.
Sensors are housed in 300 series stainless steel, with leads made of AWG #24 Teflon and cables of AWG #20 irradiated cross-linked polyolefin.
These sensors are designed for general-purpose speed sensing, suitable for various industrial applications, with specifications including power supply voltage range, output options, and environmental resistance.
Features include reverse voltage protection, rugged design, improved duty cycle, and fine pitch performance.
These sensors provide two independent frequency outputs and a direction signal output, suitable for applications requiring direction detection.
Designed to reduce line impedance, allowing cable runs up to 3000ft, supporting both TTL and supply tracking output options.
Sensors are housed in stainless steel with options for connectors or cables, and the DSDA is housed in a rugged cast aluminum box.
Customers must determine the suitability of the sensors for their specific applications.
Specifications for models EA79880-100 and EA79880-200 include input power, signal input, output signal, output current, load impedance, and output cable length.
AI-Tek provides various connectors and cable assemblies for different wire items, with standard and special lengths available.
Descriptions of split and solid steel gears used with AI-Tek speed sensors, including specifications for various models.
Specifications include lubrication, finish, reference rod dimensions, bearing limits, and sensor mounting details.
Designed for easy attachment to rotating shafts, eliminating sensor gapping and mounting issues.
A step-by-step guide for selecting the appropriate model, speed sensor, cable assembly, and tachometer based on application needs.
Various brackets are available for mounting AI-Tek speed sensors, with specifications for threaded and unthreaded types.
The operation of AI-Tek variable reluctance sensors is explained, highlighting the role of magnetic fields and AC voltage signal generation.
A comprehensive index of part numbers is provided, covering passive sensors, IEC EX sensors, Hall Effect sensors, connectors, cable assemblies, gears, transducers, and brackets.
Catalog excerpts
Table of Contents SENSORS . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Passive Sensor Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . .Magnetic Sensor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 . . . .Calculation of Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 7 . . . .Passive Speed Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 . . . .Listed Passive Speed Sensors UL/CSA/ATEX/IEC/EX . . . . . 18 .\ .Side Look Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 .Hall Effect Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 .RH & DH Series Active Sensor Selection Guide . . . .RH Series, Zero Velocity / Magnetic . . . . . . . . . . . . . . . . . . . 26 . . . .DH Series, Zero Velocity / Magnetic . . . . . . . . . . . . . . . . . . . 32 . . . .BH Series, Bi-Directional, Dual Channel . . . . . . . . . . . . . . . . 37 . . . .BH Series Active Sensor Selection Guide . . . . . . . . . . . . . . . 38 AI-Tek Instruments, Cheshire, CT USA . . . .BH Series Continued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 . . . .Digital Signal Distance Amplifier (DSDA) . . . . . . . . . . . . . . . . 42 . . . .Connectors and Cable Assemblies . . . . . . . . . . . . . . . . . . . . 44 . . . .Split Gears / Solid Gear .Tachometer Transducers . . . .Sensor Mounting Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . 50 . . . .Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 .Part Number Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 AI-TEK INSTRUMENTS IS AN AS9100/ ISO 9001 COMPANY 1
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AI-Tek Instruments, Cheshire, CT USA
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Speed Sensors Al-Tek Instruments manufactures hundreds of different designs of speed sensors. This catalog lists the standard units we developed, based on years of design experience and knowledge, to provide you readily available products to solve your sensor solution to your speed control or indication needs. Many of the hundreds of Al-Tek speed sensors we produce are designed for special applications which allows us to offer a highly versatile and flexible product line. Designed to meet severe industrial, automotive and aerospace environments, Al-Tek speed sensors, will provide reliable, around-the-clock...
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Cable Wires Wires Cable Cable Wires Cable Wires Cable Wires Cable Connector Cable Cable Connector Connector Connector Connector Connector Connector Connector Connector Connector Connector Wires Wires Cable Cable Wires Wires Wires Connector Connector Wires Cable Wires Wires Wires Wires Cable Cable Cable Cable Cable Cable Cable Cable Cable Cable Cable Cable Cable Cable Cable Wires Agency Temp Rating Approval (deg C) X X X X X X X X X X X X X AI-Tek Instruments, Cheshire, CT USA Passive Sensor Selection Guide
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Wires Wires Wires Wires Wires Wires Wires Wires Wires Cable Cable Wires Wires Wires Wires Wires Wires Wires AI-Tek Instruments, Cheshire, CT USA
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Magnetic Sensor Selection The following information is supplied for assistance in selecting the proper sensors for your particular applications. One of the fundamental questions to be answered is, “Will there be enough sensor output voltage at the lowest operating speed?” The sensor output voltage depends on: • Surface Speed - speed target passes pole piece • Gap - distance between target and pole piece • Target Size - geometric relationship of pole piece and target • Load Impedance - connected to sensor The surface speed of a gear depends upon its diameter and RPM. Surface speed is expressed...
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Calculation of Output Voltage AI-Tek Instruments, Cheshire, CT USA Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output voltage to assure proper operation in your specific application. To assist in this area, let us consider the following typical application: Requirement is speed display with overspeed and underspeed control as well as 4-20 mA signal to a PLC. Speed range is 0-3600 RPM with low speed set point at 300 RPM, available shaft diameter for mounting a gear is 2.000 in. and a .030 in. air gap is ideal. You have selected a Tachtrol 30, P/N T77630-10,...
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Passive Speed Sensors General Purpose Ordering Part # (Select cable from group "A", see index) Performance Curves MATES WITH Output Voltage (Standard): 40 V (P-P) Output Voltage (Guarantee Point): 3.4 V (P-P) Output Polarity: Pin 'B' positive High Sensitivity Ordering Part # (Select cable from group "A", see index) Performance Curves MATES WITH Output Voltage (Standard): 150 V (P-P) Output Voltage (Guarantee Point):12.9 V (P-P) Output Polarity: Pin 'B' positive
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Passive Speed Sensors Power Output Ordering Part # Thread Length (A) (Select cable from group "A", see index) Performance Curves Output Voltage (Standard): 75 V (P-P) Output Voltage (Guarantee Point): 21.5 V (P-P) Output Polarity: Pin "B" positive Conduit Fitting - General Purpose Ordering Part # Performance Curves Surface Spsaa (InrSw) Output Voltage (Standard): 43 V (P-P) 'Output Voltage (Guarantee Point): 4.3 V (P-P) Output Polarity: Red lead positive
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Passive Speed Sensors Full Thread - Power Output Ordering Part # POLE PIECE Performance Curves Surlaw Spued < irSi.-^; Output Voltage (Standard): 120 V (P-P) Output Voltage (Guarantee Point):15.1 V (P-P) Output Polarity: White lead positive Full Thread - General Purpose Ordering Part # Performance Curves ■ Output Voltage (Standard): 40 V (P-P) • Output Voltage (Guarantee Point): 3.4 V (P-P) Output Polarity: white lead positive
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Passive Speed Sensors Full Thread - High Sensitivity Ordering Part # Performance Curves Output Voltage (Standard): 150 V (P-P) Output Voltage (Guarantee Point): 12.8 V (P-P) Output Polarity: White lead positive Molded - High Sensitivity Ordering Part # Thread Length (A) (Select cable from group "A", see index) Performance Curves HATES WITH Output Voltage (Standard): 190 V (P-P) Output Voltage (Guarantee Point): 13.9 V (P-P) Output Polarity: Pin 'B' positive
Open the catalog to page 11All AI-Tek catalogs and technical brochures
Tachometers28 Pages
tachpak manual133 Pages
Brochure4 Pages
- Magnetic speed sensor
- Rotational speed sensor
- Digital tachometer
- Non-contact tachometer
- Contact tachometer
- Hall effect speed sensor
- Threaded speed sensor
- Panel-mount tachometer
- 2-channel speed sensor
- Differential speed sensor
- Electric speed sensor
- Analog tachometer
- Mechanical tachometer
- Frequency meter tachometer
- Variable reluctance speed sensor
- DIN rail tachometer
- Intrinsically safe tachometer
- Infrared tachometer