Switching and Sensing Technology at Honeywell

From basic switching to on-chip, signal conditioned sensors, Honeywell Sensing and Control offers a wide

variety of system critical switching and sensing solutions for all of your application needs. For more

information, visit our website and interactive catalog at www.honeywell.com/sensing.

Magnetic

Position Sensors

The Honeywell Magnetic Position Sensor family

includes digital and analog Hall-effect position sensors,

magnetoresistive digital sensors, Hall-effect vane

sensors, gear tooth sensors, Hall-effect basic switch, and

magnets. Magnetic Position Sensors are reliable, high speed, long life,

sensors and are directly compatible with other electronic circuits.

These sensors respond to the presence or the interruption of a magnetic

field by producing either a digital or an analog output proportional to

the magnetic field strength. Digital and analog “sensor-only” devices are

operated by the magnetic field from a permanent magnet or electro-

magnet. Position sensors from Honeywell are used in applications that

require accurate, reliable outputs.

Position Transducers

The Honeywell Sensing and Control transducer

products use potentiometric technology

originally developed for military applications

and more recently applied to industrial

markets. The proprietary MystR®

conductive plastic has extensive temperature and power capabilities

along with infinite resolution in very small stroke units (5 mm [0.2 in])

without any intermediate signal conditioning. In a world where

miniaturization drives sensor development, potentiometers have shrunk

to the point where their weight is measured in grams and their stroke in

millimeters. This amazing technology can still be utilized for measure-

ments in tens of feet with repeatability in thousandths of an inch.

Current Sensing

Current sensors monitor AC or DC current. Honeywell

offers a broad line of adjustable linear, null balance,

digital, and linear current sensors. Digital current

sensors can sound an alarm, start a motor, open a

valve or shut down a pump. The linear signal

duplicates the waveform of the current being sensed, and can be used as

a feedback element to control a motor or regulate the amount of work

being done by a machine.

11

Humidity Sensors

Humidity sensors from Honeywell are configured with integrated

circuitry to provide on-chip signal conditioning. These sensors

contain a capacitive sensing die set in thermoset polymers that

interacts with platinum electrodes. Absorption based

humidity sensors provide both temperature and %RH

(Relative Humidity) outputs. On-chip signal processing

ensures linear voltage output versus %RH. Sensor laser

trimming offers + 5%RH accuracy, and achieves 2%RH accuracy with

calibration. Packages are chemically resistant and operate in ranges of

-40 °C to 85 °C (-40 °F to 185 °F) to accommodate harsh environments.

Temperature Sensors and

Thermal Products

Temperature sensors provide a change in a physical parameter

such as resistance or output voltage that corresponds to a temperature

change. These sensors are suitable for applications that require small

package size, accuracy, and linear outputs. Honeywell also offers a full

line of heaters, thermistors, and thermostats.

Infrared Sensors

Optoelectronic sensors from Honeywell integrate optical

principles and semi-conductor electronics. These

sensors are reliable, cost effective sensors for

applications which require object presence sensing,

motion sensing, position encoding, limit sensing,

movement detection and counting.

Basic Switches

Honeywell’s basic switch product families include

standard size basics, miniature, subminiature,

hermetically sealed, and high temperature

switches. The precision snap-action

mechanisms are offered with a wide variety of

actuators and operating characteristics. MICRO

SWITCH basic switches are ideal for applica-

tions requiring compactness, light weight,

accurate repeatability and long life. Honeywell basic

switches, provide a very cost effective solution for applications that

require presence/absence detection where physical contact with object is

permissible.