Sensors + Controls
Industrial sensors convert physical conditions into usable signals, while control systems use those signals to monitor, regulate, automate, and protect equipment. Compatibility depends on measurement range, accuracy, output type, power requirements, response time, mounting, communication method, and environmental conditions.
Common Sensor + Control Types
Industrial sensing systems monitor physical conditions, presence, position, force, pressure, temperature, flow, and visual characteristics. Control hardware interprets those signals and determines how equipment should respond.
Load Cells
Load cells convert force or weight into electrical signals for weighing, force measurement, overload detection, testing, and process monitoring.
Pressure Switches + Sensors
Pressure devices detect or measure fluid and gas pressure for system monitoring, pump control, machine protection, process regulation, and alarm functions.
Temperature Sensors
Thermocouples and other temperature sensors monitor heat in machines, ovens, process systems, motors, equipment, and environmental-control applications.
Machine Vision
Machine vision systems use cameras, lighting, optics, and processing to inspect products, verify assembly, locate objects, read markings, and guide automated equipment.
Data Acquisition
Data acquisition systems collect sensor signals for monitoring, testing, logging, analysis, diagnostics, and process-control applications.
Industrial Switches
Mechanical and electronic switches provide discrete control signals for position, pressure, operator input, machine state, and safety-related functions.
The measurement and the signal must both match.
A replacement sensor must measure the correct physical quantity and communicate that information in a form the control system can use.
Range, scaling, wiring, power supply, output format, response time, and signal interpretation can all prevent an otherwise similar sensor from being interchangeable.
From Measurement to Machine Action
Sensors provide information, but industrial automation depends on the complete path from sensing to control, decision-making, communication, and machine response.
Sense
A sensor detects a physical condition such as pressure, force, position, temperature, flow, or object presence.
Condition
Signal-conditioning hardware may amplify, filter, isolate, convert, or scale the raw sensor output.
Acquire
Controllers or data acquisition systems receive the signal through compatible electrical or digital inputs.
Decide
Control logic compares measurements with limits, commands, recipes, or programmed operating conditions.
Command
The control system sends output signals to motors, valves, relays, actuators, alarms, or other machine devices.
Verify
Additional sensor feedback can confirm whether the commanded machine action produced the expected result.
Sensor + Control Selection Factors
Sensor selection begins with the condition being measured, followed by the required range, precision, signal, physical installation, and environment. The control system must then be able to interpret that signal correctly.
Measure correctly. Communicate correctly.
The Sensor & Control Selection Guide expands on measurement range, accuracy, response time, output types, wiring, mounting, environmental ratings, data acquisition, control integration, and replacement compatibility.
Related Sensor + Control Resources
These resources cover industrial measurement, calibration, data acquisition, machine vision, load sensing, pressure monitoring, and related control technologies.
Resources for measuring force, pressure, flow, and other industrial process variables.
Technologies for machine inspection, signal collection, testing, and process monitoring.
Supporting technologies used to measure temperature and connect sensors into industrial control systems.