Linearization of the static characteristics of automatic temperature-measuring instruments

1971 ◽  
Vol 14 (11) ◽  
pp. 1698-1701
Author(s):  
M. F. Zaripov ◽  
M. A. Urakseev
Keyword(s):  
Measuring Instruments ◽  
Static Characteristics ◽  
Automatic Temperature ◽  
Temperature Measuring

Automatic Temperature Measurement System of Accelerated Ageing Test for Fuse

2013 ◽  
Vol 313-314 ◽  
pp. 583-587
Author(s):  
Jie Shi ◽  
Shu Yu Tang
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Accelerated Ageing ◽  
Automatic Temperature ◽  
Manual Measurement ◽  
Ageing Test ◽  
Temperature Measuring ◽  
Testing Method ◽  
Temperature Measurement System

In the accelerated ageingtest of fuses, manual measurement was used to collect the temperature of fuse.By this testing method, the errors introduced by human were inevitable. In thispaper, an automatic temperature measuring type accelerated ageing test systemfor fuses was developed. So, the errors introduced by human were overcome.

Analysis on the Static Characteristics of the New Type Externally Pressurized Spherical Air Bearings

2010 ◽  
Author(s):  
Fusheng Wang ◽  
Gang Bao
Keyword(s):  
Stokes Equations ◽  
Three Dimensional ◽  
Simple Algorithm ◽  
Structure Design ◽  
Measuring Instruments ◽  
Air Bearings ◽  
Static Characteristics ◽  
Mass Properties ◽  
New Type ◽  
Spherical Air Bearings

The new type externally pressurized spherical air bearings used mass properties measuring instruments are studied which are particularly recommended for determining mass properties of rockets, satellites and ballistic objects. The air bearings are the key component of the mass properties measuring instruments. In order to provide some theoretical guideline for the structure design of the new type externally pressurized spherical air bearings, this paper analyzes static characteristics and the factors affecting the static characteristics of the new type air bearings. A finite volume method is adopted to discretize the three-dimensional steady-state compressible Navier-Stokes equations, and a modified SIMPLE algorithm for compressible fluid is applied to solve the discretized governing equations. The pressure field and velocity field of the air bearings are obtained, from which the carrying capacity, static stiffness and mass flow of the air bearings can be derived, and the factors and rules affecting the static characteristics are analyzed. The calculation method proposed in this paper fits well the general principle, which can be extended to the characteristics analysis of other air bearings.

scholarly journals Raspberry Pi based automatic temperature measurement and logging system for solar thermal purposes

MOMENTO ◽  
2022 ◽  
pp. 1-15
Author(s):  
Natarajan Shriethar ◽  
Pournan Letchoumanane ◽  
Saravanakumar Solai
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Solar Thermal ◽  
Sensor System ◽  
Raspberry Pi ◽  
Data Sets ◽  
Automatic Temperature ◽  
Single Board Computer ◽  
Temperature Measuring ◽  
Temperature Measurement System

For automatic temperature measuring and logging purposes in solar thermal experiments, a single board computer - Raspberry Pi based and sensor system is proposed. Different data sets are observed for sensors, thermometers, and thermocouples and they are compared. The consistency of the automated temperature measurement system is also verified.

scholarly journals The Manufacturing of Low Temperature Measuring Devices Using a PT-100 Sensor Based on ATmega328 Microcontroller

2020 ◽  
Vol 21 (1) ◽  
pp. 26
Author(s):  
Bhakti Hardian Yusuf ◽  
I Made Satriya Wibawa ◽  
I Ketut Putra
Keyword(s):  
Low Temperature ◽  
Coefficient Of Determination ◽  
Measuring Instruments ◽  
Measured Temperature ◽  
Measuring Instrument ◽  
Reference Measuring ◽  
Measuring Device ◽  
Temperature Measuring ◽  
Measurement Results ◽  
Reference Measuring Instrument

A low temperature measuring device has been successfully developed using a microcontroller-based PT-100 sensor ATmega328. The temperature is measured using a PT-100 sensor, as the main processor using the ATmega 328 microcontroller, and the measured temperature is displayed on a 2x16 LCD. The results of the calibration at a temperature of 77 - 300 K against the reference measuring instrument obtained that, the ratio of the measured temperature between the reference measuring instrument and the measuring instrument made was 0.9893 ± 3.69 K and the coefficient of determination R2 = 0.9987. This indicates that the measurement results of the measuring instruments made have an accuracy level of 98.93% and a precision of 99.87%. Keywords: Low temperature, PT-100 Sensor, ATmega328 Microcontroller, LCD 2x16

MODELING OF STATIC CHARACTERISTICS OF PNEUMATIC STRAIN GAUGE TRANSDUCER

2019 ◽  
pp. 48-52
Author(s):  
A. P. Vasytenko ◽  
A. Yu. Tarakhovskiy
Keyword(s):  
Strain Gauge ◽  
Electrical Signal ◽  
Design Parameters ◽  
Measuring Instruments ◽  
Static Characteristics ◽  
Air Jet ◽  
Jet Impact ◽  
Measurement Results ◽  
Strain Gauge Transducer ◽  
Processing Of Measurement Results

Measuring instruments that implement the pneumatic principle of measurement, have a number of significant advantages: small dimensions of the measuring equipment, allowing to produce multiparameter control in a limited size of the working area, insensitivity to vibration, simplicity of design and reliability. The disadvantage of pneumatic converters is a discrete output electrical signal, which does not allow the processing of measurement results. In this regard, it seems appropriate to investigate the pneumatic-electric Converter, which includes a jet pneumatic and differential strain gauges, which allows to obtain an analog electrical signal at the output. The article describes the design and principle of operation pneumoenteritis Converter to control the diameter of the part. Pneumotensometric Converter converts the change in the diameter of the part in the movement of the nozzle, which causes a change in the force of the air jet on the beam, its deformation and, accordingly, a change in the resistance of he strain gauge. An expression describing the stoic characteristic of the transducer and allowing to determine the force of the air jet impact on the load cell from the gap between the nozzle and the beam, the air pressure and the nozzle diameter is given. The results of modeling the static characteristics of the Converter at different combinations of design parameters are given, the values of straight sections of characteristics and sensitivity are determined, their comparative evaluation is given.

scholarly journals SIMULATION OF A SINGLE-PHASE TWO- LEVEL AUTONOMOUS VOLTAGE INVERTER WITH THE PULSE WIDTH MODULATION

2020 ◽  
Vol 2020 (1) ◽  
pp. 197-198
Author(s):  
Mihail Dunaev ◽  
Sarfaroz Dovudov
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Operating Conditions ◽  
Measuring Instruments ◽  
Static Characteristics ◽  
Voltage Inverter ◽  
Autonomous Voltage Inverter ◽  
Generation Unit

The work is devoted to modeling the circuit of a single-phase two-level the autonomous inverter of the voltage with pulse-width modulation in the MATLAB environment. Pulse-width modulation generation unit developed. Static characteristics of the converter are obtained. With the help of a set of measuring instruments, the efficiency of the сonverter is measured under nominal operating conditions.

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