Computerized caliper

Abstract

Computerized Caliper consists of measuring bar with fixed jaw, moving frame with moving jaw and a measurement and computer block. Measurement and computer block installed on the moving frame comprises digital measurement device of a vernier caliper, a computer, to which a temperature transmitter is connected, and a photo-camera.

Claims

1. A Computerized Caliper comprising: a measurement bar with a fixed jaw; a moving frame with a moving jaw; and a measurement and computer block, which combines a digital measurement device of a vernier caliper, and a computer that corrects error of linear displacements of a moving frame along a measuring bar, and a photo-camera which provides photos of detail with the measurement time to a measurement and computer block, where they are stored along with measuring protocol and mathematical processing results; and a temperature transmitter which monitors temperature of detail and vernier caliper for compensation in a measurement and computer block of temperature deformation error of detail and vernier caliper.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The essence of the invention is indicated in the sketch, where the Computerized Caliper, longitudinal section is indicated.

(2) FIG. 1 is a schematic representation of the structure of the Computerized Caliper claimed.

(3) The invention Computerized Caliper consists of a measuring bar 1 with a fixed jaw 2, a moving frame 2 with a moving jaw 4; and at the same time it is different from the well-known prior art in the fact that measurement and computer block 5, which comprises digital measurement device of the vernier caliper, computer, to which a temperature transmitter 6 is connected, and a photo-camera 7, are installed on a moving frame 3 (refer to sketch).

DETAILED DESCRIPTION

(4) The measurement and computer block 5 of the Computerized Caliper by design combines the conventional digital measurement device of the conventional vernier caliper and minicomputer in a single casing. The measurement and computer block 5 is fastened on the moving frame 3 of the Computerized Caliper (refer to sketch).

(5) The measurement and computer block 5 of the Computerized Caliper has a touch screen (with sensor and mechanical buttons), where the following information can be displayed, as desired by the operator:

(6) Calendar date and time, temperature of the Computerized Caliper;

(7) Photo and temperature of the detail (detail place being measured);

(8) Unique parameters of the next measurement of the detail;

(9) Series of the repeated measurements of the detail (3, 5, 10 or by the order), which are incorporated in the table;

(10) Table of the mathematical processing of the series of repeated measurements (3, 5, 10 or by the order), including average, mean absolute error, mean root square deviation;

(11) Individual uncertainty calculation of type B of the Computerized Caliper of the indicated standard size;

(12) Record of the periodic metrological control of the Computerized Caliper.

(13) The invention Computerized Caliper is used in the following manner: The Computerized Caliper is switched on by pushing the respective button (mechanical or sensor) of the measurement and computer block 5; with that the temperature of the engaged Computerized Caliper is displayed on the screen, which temperature is recorded in the measurement and computer block (refer to sketch). The measurement jaws 2 and 4 are brought together and the readings of the Computerized Caliper are set to zero (refer to sketch). The actual temperature of detail 8 is determined by means of the temperature transmitter 6 (for the large-size details 8 the temperature is determined in the particular measurement place) and photo-camera 7 takes a photo of detail, this information is recorded in the measurement and computer block 5 (refer to sketch). The measurement mode (single or repeated measurements) is set on the screen of the measurement and computer block 5 by means of buttons and the table format is selected for mathematical processing of the measurement results (refer to sketch). The temperature correction of the measurement error is performed taking into account the actual temperatures of the Computerized Caliper and detail 8, obtained by means of the temperature transmitter 6 (refer to sketch). The detail being measured 8 is grasped between the measuring jaws 2 and 4 and the information is read from the screen of the measurement and computer block 5 of the Computerized Caliper (refer to sketch). If required, the erroneous values of measurements, including the tabular ones, are removed, by means of the sensor buttons of the measurement and computer block 5 (refer to sketch). After every metrological control of the measurement equipment tool Computerized Caliper (periodic, current and after the repair) the mathematical linear making up of the error of moving frame 3 movement along the measuring scale 1 (refer to sketch).

(14) According to the claims of invention Computerized Caliper the applicant fabricated the operative embodiment and performed comparative test together with the commercial vernier caliper made by MICROTECH (Kharkov, Ukraine) having the digital measurement device and communication port with computer /2/, which has been introduced to the State Registers of Ukraine and Russian Federation (mostly, widespread in Ukraine), which is as good as Japanese prior art MITUTOYO /1/, refer to table.

(15) TABLE-US-00001 TABLE Prior art ShCC ( )-500 Invention MICROTECH with Comparative parameters Tablet MIS by No. Vernier caliper with computer Caliper MICROTECH/2/ 1. Measurement range, mm 0-500 0-500 2. Division value, mm 0.01 0.01 3. Measurement error, mm 0.25 0.05 4. Weight of the vernier caliper 1.45 2.35-6.5 with computer, kg 5. Number of the operators 1 2 involved, pers. 6. Linear compensations of scale + errors 7. Thermal compensation of errors + 8. Camera + 9. Temperature transmitter +

(16) The comparative analysis of the suggested invention Computerized Caliper and commercial up-to-date sample of the vernier caliper by MICROTECH, mod. ShCC ()-500 with MIS for interfacing with computer /1/as given in the table, indicates the possibility of the practical implementation and absolute technical and economical advantages of the invention Computerized Caliper.

(17) The suggested invention Computerized Caliper opens new higher level of the digital vernier calipers, which considerably surpass all the today's models of vernier calipers in terms of their parameters and technological capabilities.