Handheld Doppler flowmeter

『Handheld Doppler flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)

1. Doppler flowmeter

2. Which devices belong to measuring instruments?

According to the Catalogue of Measuring Instruments Managed by Law of the Peoples Republic of China (Type Approval Part), the following equipment belongs to measuring instruments:

1. Distance measuring instruments: photoelectric distance measuring instrument, ultrasonic distance measuring instrument, handheld laser distance measuring instrument;

2、 Shortage of Theodolites: Optical Airborne Theodolites, Electronic Theodolites;

3、 Total station: total station electronic speedometer;

4、 Level gauge: Level gauge;

5、 Geodetic GPS receiver: Geodetic GPS receiver;

6、 Level gauge: Level gauge;

7、 Thickness gauges: ultrasonic thickness gauge, X-ray thickness gauge, eddy current thickness gauge, magnetic bucket random resistance thickness gauge, gamma ray thickness gauge;

8、 Thermometer: an infrared thermometer used to measure human body temperature (infrared ear thermometer, infrared rapid screening device for human body surface temperature);

9、 Radiation thermometer: Full radiation thermometer for work, radiation thermometer for work, radiation thermometer for work below 500 ℃;

10、 Balance: Non automatic balance. Additional information: According to their structural characteristics, measuring instruments can be classified into the following three categories:

1. Measuring instruments are measuring instruments that reproduce values in a fixed form, such as measuring blocks, weights, standard batteries, standard resistors, and bamboo rulers. Linear meter ruler, etc;

2、 Measuring instruments and meters. Measuring instruments that convert the measured quantit

3、 Measuring device. The overall combination of measuring instruments and auxiliary equipment necessary for determining the measured value, such as mileage meter calibration devices, high-frequency microwave power meter calibration devices, etc. Reference source: Baidu Baike - Measuring Instruments

3. Catalogue of Measuring Instruments with Metrological Certification Marks

Catalogue of Measuring Instruments Managed by Law of the Peoples Republic of China (Type Approval Part) Announcement No. 145 of 2005 by the General Administration of Quality Supervision, Inspection and Quarantine of the Peoples Republic of China. In order to further implement the "Measurement Law of the Peoples Republic of China" and the "Administrative Licensing Law of the Peoples Republic of China", our bureau has organized the formulation of the "Catalogue of Measuring Instruments Managed by Law of the Peoples Republic of China (Type Approval Part)", which is now published and will come into effect on May 1, 2006. Projects included in the "Catalogue of Measuring Instruments Managed by Law of the Peoples Republic of China (Type Approval Part)" must apply for a measuring instrument license, type approval, and import measuring instrument calibration. The catalog of work measuring instruments subject to mandatory verification shall be implemented in accordance with existing regulations. The catalog of specialized measuring instruments shall be drafted by the relevant metrological institutions of the State Council and submitted to our bureau

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