SU1310929A1 - Test prod for voltammetric instrument - Google Patents

Abstract

This invention relates to electrical engineering and is intended to connect a test object to a measuring device circuit. The purpose of the invention is to increase the reliability of operation, the accuracy of measurement by maintaining the same gap between the pins along their entire length during the measurement process. The probe includes a housing 1 with two pins 3 placed in it. Each pin consists of three parts - an average, made curved and installed with the possibility of interaction of its end sections with the internal end surface of the housing cavity, tail 5, rigidly installed in the case, and contact 4 The middle parts are set equidistant relative to each other in S (L io with N :) x

Description

parallel planes and curved zigzag. Rigid fastening in the body of the tail section 5 eliminates the possibility of fatigue rupture of the connecting wires. The probe of the invention relates to the field of measurement technology, in particular, to ancillary devices of electrical measuring instruments, and is intended to connect a controlled object or its section to the circuit of an electrical measuring instrument using a current-voltage measuring method.

The purpose of the invention is to increase the reliability of operation and the accuracy of measurement by maintaining a constant gap between the pins throughout their

length in the measurement process.

The drawing shows the design of the probe.

The probe contains an insulating body with an end protrusion 2 and made of elastic metal, for example steel spring wire, two identical pin 3, each of which consists of three parts - a pointed pointed part 4, an average made with the possibility of interaction of its end sections with an inner end surface and a bent, and a tail part 5. The middle part of each pin is an element 6, bent in a zigzag manner, placed in the cavity 7 between its end surfaces 8 and 9 with a preliminary tension , ensuring the immobility of the pin in the off position, the tail part 5 of each pin is inseparable, for example by soldering, connected respectively to the current and potential input wires 10 of the measuring circuit of the device. Elements 6 are set equidistantly relative to each other in parallel planes.

In the process, a force is applied to the probe body 1, which is directed along its longitudinal axis. This force, through the top end force, will minimize errors in the readings of the device due to the practically limit reduction of the base distance between the current and potential pins. 1 il.

five

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five

0 5 0 5 0

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surface 8 is transferred to the middle part of the pin, made in the form of a zigzag element 6. At the same time, under the action of the reaction force, the middle part of the pin is elastically deformed, moving away from the lower end surface 9, and its pointed part 4 is inserted into the surface of the object under test 11. The instrument reads with the effort ensuring the stop of the end protrusion 2 against the surface of the object under control. In this position, the magnitude of the elastic deformation of the element 6 corresponds to the calculated force of pressing the current and potential pins to the contact points of the surface of the object under test.

The probe has fixed fixed parts of 5 pins rigidly fixed in the housing, which exclude the possibility of fatigue rupture of the connecting wires during long-term operation. The absence of a mobile connection of these wires with pins and the transfer of fatigue loads on a structural element made of a material intended for work in this mode significantly increases the mechanical reliability of the probe, increasing the warranty period by 15–20 times.

The proposed design also has the advantage in evaluating areas with a small extent, minimizing errors in the readings of the instrument due to the practically limit (limited by the diameter of the pin) reduction of the base distance between the current and the potential probe.

Formula of the invention

A probe for a current-voltage measuring device, comprising a housing with two pins in it.

3, 13109294

each of which consists of a threefold so as to

parts - medium, made isog-increase reliability and accurate

measured and measured by keeping the post-interaction of its end portions of the gap between the pins throughout

with the inner end surface of the length in the process of measurement, the middle cavity of the body, the contact and part of the pins are installed equiko installed in the body tail-distantly relative to each other

Yours, the last two of which lie in parallel planes and bending parallel planes, are zigzag-like.

Claims (1)

Claim A probe for a volt-ampere measuring device, comprising a housing with two pins placed in it, each of which consists of three parts - the middle, made curved and installed with the possibility of interaction of its end sections with the inner end surface of the housing cavity, contact and rigidly mounted in the housing tail, the last two of which lie in parallel planes, which consists in the fact that, in order to increase the reliability of work and accurate measurement, by maintaining a constant gap between the pin along the entire 5 of their lengths during the measurement process, the middle parts of the pins are mounted equidistantly relative to one another in parallel planes and are curved in a zigzag fashion.