Sensors, Transducers483 Results
- Current Sensors
- Flow Sensors
- Gas Sensors
- Magnetic Sensors - Compass, Magnetic Field (Modules)
- Magnetic Sensors - Linear, Compass (ICs)
- Magnetic Sensors - Position, Proximity, Speed (Modules)
- Magnetic Sensors - Switches (Solid State)
- Optical Sensors - Photodiodes
- Position Sensors - Angle, Linear Position Measuring
- Pressure Sensors, Transducers
- Specialized Sensors
- Temperature Sensors - PTC Thermistors
Current Sensors are designed to detect and respond to changes in the flow of electricity in a wire or circuit. The sensor types are current switch, flux gate, hall effect, current indicator, current sensor, magnetic modulator, magnetoresistive, and transformer w/conditioning with current sensing ranging from programmable to 5mA to 2500A for measuring AC or DC current.
Products within this family are used to measure or detect the flow of a fluid such as water or air. The simpler products provide a binary indication of whether or not the flow rate exceeds some defined value, whereas the more complex products are capable of providing a variable output from which the amount of fluid flow can be determined as a mass or volume-per-time quantity. Device performance in either case is quite strongly related to the properties of the working fluid, and media compatibility issues are also a matter of noteworthy concern for device selection and application.
Gas Sensors are designed to detect and respond to the presence or a change in the concentration of a gas. They are characterized by the type of gas being detected. Examples include: acetylene, alcohol, benzine, butane, ammonia, carbon dioxide, carbon monoxide, hydrocarbons, hydrogen, hydrogen sulfide, methane, natural gas, nitrogen dioxide, oxygen, ozone, propane, and sulfur dioxide.
Magnetic Sensors - Compass, Magnetic Field (Modules)
Compass and Magnetic Field Module sensors are devices designed to detect and respond to the presence of a magnetic field. Items in this family are designed for dead reckoning, digital compass, or a digital magnetometer in the X, Y, Z axis. They are used for measuring heading, pitch and roll, and strength or direction with a measuring range of ±0.9 gauss, ±1 gauss, ±180µT, ±2 gauss, or ±700 mgauss.
Magnetic Sensors - Linear, Compass (ICs)
Products in this family are designed to measure the strength of a magnetic field as a variable quantity, as contrasted with similar products that simply detect the presence of a magnetic field having a strength in excess of some limiting value. A common application involves the measurement of the earth's magnetic field for direction finding purposes in a manner similar to a traditional compass, and some devices designed to allow measurements to be directly read in terms of physical orientation relative to a magnetic field are available.
Magnetic Sensors - Position, Proximity, Speed (Modules)
Position, Proximity, and Speed Module sensors are used to detect the presence, absence, or motion of an object and respond to the presence, absence, or motion of a magnetic field. Operates with either a north or south pole depending on the device. The type of modules include ball switch, bipolar switch, hall effect, logic magnetic pickup, omnipolar, potentiometer, reed switch, unipolar switch, and VRS.
Magnetic Sensors - Switches (Solid State)
Products in this family use solid-state technology for detecting the presence of a magnetic field in excess of some specific magnitude and/or sign, and provide a two-state output indicating the presence or absence of such a field. They are distinct from reed switches, which provide a similar function through the use of moving mechanical parts, as well as from linear or compass-type solid-state devices which provide a variable output indicative of the strength and/or orientation of an applied magnetic field.
Optical Sensors - Photodiodes
Products in the photodiode family are used for detection and measurement of light. Based on the interaction of light with a semiconductor junction similar to that found in rectifier diodes, devices adapted for a wide range of purposes are available. Some are adapted for sensitivity over narrow wavelength ranges, others for sensitivity over a wide range. Some are suitable for detection of high-speed signals such as encountered in fiber optic communications, others for detection of extremely low levels of light (even individual photons) with applications ranging from medical imaging to distance measurement.
Position Sensors - Angle, Linear Position Measuring
Angle and linear position measuring sensors use capacitive, Hall effect, inductive, LVDT, LVIT, magnetoresistive, optical or resistive technology to determine the position of the sensor's actuator relative to a reference point. Angle position sensors are differentiated by their electrical or mechanical range in either a limited or continuous rotation range. Linear position sensors are differentiated by ranges from 0 up to 400 inches. Other considerations include actuator type, output type and signal, mounting type and percent linearity.
Pressure Sensors, Transducers
Pressure Sensors or Transducers are designed to detect and respond to the presence or a change in the amount of force on the device. The pressure types are Absolute, Compound, Differential, Gauge, Sealed Gauge, Switch, Vacuum, and Vented Gauge with operating pressures from -100PSI (-689.48kPa) to 20000PSI (137895.15kPa).
Specialized Sensors are devices designed for specific requirements or for niche applications. The sensor types are accelerometer, gyroscope, magnetometer, pressure, temperature, humidity, light, air quality monitor, analog-to-frequency converter, anemometer, battery sensor, biometric, bubble detector, button press, camshaft, capacitive, contact sensor, depth gauge, dry contact sensor, fingerprint, force sensing, gas, geiger tube, infrared, joystick, and laser power, among others.
Temperature Sensors - PTC Thermistors
Positive Temperature Coefficient (PTC) thermistor temperature sensors are devices that exhibit an increase in resistance in response to an increase in temperature. Thermistors produce an output signal that is relatively large and easy to measure compared to many other temperature sensor types, though their characteristics tend to be less stable and less suitable for precise temperature measurements. PTC thermistors in particular are often adapted for over-temperature detection applications, and often exhibit a distinctly nonlinear temperature-resistance relationship that makes them useful for detection of an imprecise "high" temperature condition, though poor for making accurate measurements.