Instrument knowledge|Classification of on-site detection instruments for industrial automation instruments

There are many types of industrial automation instruments. From the acquisition, transmission, reflection and processing of information, industrial automation instruments are divided into five categories: field measuring instruments, display instruments, control instruments, actuators, and centralized detection and control devices. Each major category can be subdivided into several subcategories. Let's take a look at the classification of on-site inspection instruments.
Classification of field measuring instruments:

1. Material level and liquid level meter:
Continuous level measuring instruments: buoyancy level gauge, capacitive level gauge, radar level gauge (DCRD1000A series radar level gauge), laser level gauge, ray level gauge, ultrasonic level gauge, direct reading Type liquid level gauge, external micro-vibration level gauge, differential pressure level gauge, heavy hammer level gauge.
Limit level measuring instruments: Capacitor/pole type level switch, float type level switch, tuning fork type level switch, rotary vane level switch, ultrasonic level switch

2. Flow meters: mass flow meters, positive displacement flow meters, velocity flow meters, flush flow meters, flow switches, open channel flow meters, target flow meters, differential pressure flow meters

3. Pressure instrument: pressure gauge, pressure gauge, pressure transmitter, differential pressure transmitter, pressure calibration instrument, pressure reducer, tire pressure gauge, automatic air pressure adjustment control instrument, hydraulic automatic adjustment control instrument, pressure sensor

4. Temperature instrument: glass thermometer, bimetal thermometer, pressure thermometer, thermocouple, thermal resistance, non-contact thermometer, temperature control (regulator), temperature transmitter, temperature calibrator, temperature sensor, temperature tester

5. Electrical instrumentation: ammeter, voltmeter, current power frequency meter, current distribution, electric tester, circuit breaker, switch, contactor, relay, terminal, voltage regulator, voltage monitor, intelligent power monitor, voltage stabilizer , Megohmmeter, clamp meter, multimeter power transmitter, current transmitter, ballast, rectifier

6. Electronic measuring instruments: LCR measuring instrument, level meter, viscometer, oscilloscope, signal generator

7. Analytical instruments: chromatographs, chromatographic accessories, photometers, moisture analyzers, balances, thermal analysis instruments, ray analysis instruments, spectrometers, physical characteristics analysis instruments, photographic instruments, spectrum analyzers

8. Optical instruments: photometers, refractometers, filters, color filters, prisms, lenses, spectrometers, color difference meters, optoelectronics, laser instruments, microscopes, binoculars, magnifiers, theodolites, levels, spectrometers