are an essential component in any computer system designed
to control, measure, or test. Choosing the right type of sensors
sensors simply detect the presence or absence of a condition and
produce a high or low electrical signal that corresponds to the
state detected. These on/off sensors are easily interfaced to
type of sensor is often used security systems to detect whether
a door is open or closed or whether something is moving in a room.
Another application is to detect whether a piece of machinery
or equipment is on or off.
sensors used in computer control systems convert the measurement
of some physical force or parameter into an electrical signal
- generally either a varying resistance, voltage, or current.
For the computer system to use this data it must be converted
into a digitally represented number. Analog to digital convertor
circuits are used to perform this function.
sensors are used to measure such things as temperature, pressure,
humitidy, dissolved substances, gas levels, light, and color to
name just a few.
a computer control system to control a variable control parameter
such as a motor's speed or a valve's position digital to analog
convertors are required.
are sensors and actuators available for many different applications
and more are being developed all of the time.
variety of sensors to measure commonly monitored parameters such
as temperature and pressure can be purchased directly from us
online. Sensors from our Online Controls
sensors for other monitoring and control applications contact