DE1932308U - PORTABLE BATTERY-OPERATED DOSE POWER METER FOR IONIZING RADIATION. - Google Patents

Description

RA.63 / f006 * -3.12.6!

Erlangen-Bruck, November 29, 1965

Portable battery-operated dose rate meter for ionizing radiation

Must be used

In the case of portable, battery-operated dose rate devices in the cone switching elements required that both a Switch on the device for the measurement and check the built-in battery.

It is the task of the present innovation, a dose rate meter of the type mentioned, whose switching elements largely avoid incorrect switching due to special training and enable simple operation, especially by Uichtspeople «This is particularly the case when it is used in civil protection of the population significant.

To achieve this, the new dose rate meter for ionizing radiation, consisting of a radiation detector, an amplifier connected to this for the pulses of the radiation detector, a battery for the power supply of radiation detector and amplifier, a display instrument for the dose rate to be displayed, first contact elements for starting up the device and second contact elements for the test of the battery, according to the invention, characterized in that a known common for the contact members "7 rocker switch is installed, which reacts when the one end of the rocker is pressed the first contact elements and when pressure is applied to the other end of the rocker, the second contact elements are actuated ensures that only the first or the second contact members can be actuated, but not both together. Incorrect measurements are therefore as good as impossible from the operational side. When the seesaw

is released again, it returns under spring pressure back to their original state.

The rocker switch can now be designed for direct operation, but the operation of a The rocker switch housed in the device housing takes place indirectly via two push-button buttons that are located in the housing wall are stored and one of which is a convex shape, the other can have a concave actuating surface to the To facilitate operation in difficult conditions. In a further embodiment of the innovation, the rocker switch or his Sohaltwippe so arranged that the start-up of the device causing the Yfippenende of the scale of the display instrument "is adjacent. This provides a meaningful assignment that facilitates practical operation.

The inflation is explained below with reference to an embodiment shown schematically in the drawing.
Show it;

Figure 1 the new dose rate meter in an oblique view,

Figure 2 shows the rocker switch from the device of Figure 1 from the Page, partly in cut,

Figure 3 shows a rocker switch with indirect actuation of a Rocker switch.

According to Figure 1 is located in the upper part of the housing 1 Measuring mechanism scale 2, over which the measuring mechanism pointer 3 plays. A rocker switch / is pivotable in a recess 4 on the upper side of the measuring mechanism housing stored. As can be seen from its label, this serves optionally to start up the measuring device or by pressing the other end of the rocker to check the built-in battery.

According to FIG. 2, the rocker switch 5 is mounted in the wall of the housing 1 via stub axles β. The rocker body is made of injection molded plastic and has two squats 7 and 8 below. These are assigned contact elements, and. Although the nook 8 is associated with the contact spring 9 with mating contact 1O _{5 of} the lock 7, the contact spring 11 with mating contact 12 is assigned. At the same time, the contact springs cause the rocker switch to return to its original position.

If the right-hand end of the rocker switch 5 is now pressed, the nooke 7 moves downwards and thereby presses the contacts 11 and 12 together, which, for example, puts the device into operation. In an analogous manner, when the left end of the rocker 5 is pressed, the contacts 9 ^{un <} 3 · 10 are closed and the battery installed in the device is checked.

Also indirectly operating rocker switch ■ may be ^a (Figure 3) is provided with a rocker switch 5 in place of the shown in Figure 2 directly acting rocker switch. This in turn is actuated by pushbuttons 13 and 14, which are held in the housing wall by the pressure of the double spring 15. It is obvious that when the buttons or 14 are pressed, the same contacts are actuated as in the embodiment in FIG. 2.

So that there is a choice of switching options even in the dark, for example the touch surface of the push button es 14 * can be seen as at 16, convex, that of the button 13 ₅ as at I? to see, concave.

Claims (4)

Protection claims s 1. Portable dose rate meter for ionizing radiation, consisting of a radiation detector, an amplifier connected to this for the radiation detector's impulses, a battery for powering the radiation detector and amplifier, a measuring unit for the dose rate to be displayed, first contact elements for starting up the device and a second Contact members »for testing the battery, characterized in that a known common rocker (5> 5 &) is installed for the contact members, which when pressure is applied to one end of the ip the first contact elements (S, 10) and when pressure is applied actuated the second contact members (11, 12) on the other end of the rocker. 2. Device according to claim 1, characterized in that that the rocker switch (5a) is arranged under the housing wall and its ends by one of two push buttons (13 »14) are actuated that the housing wall push through. J. Device according to claim 2, characterized in that that the actuating surface of a push button is concave (17)? that of the other is convex (16) » 4. Apparatus according to claim 1 or 2, characterized. That the ¥ ippenscha] fer or its rocker switch (5, 5 ^a ) ^s ° is arranged that the start of the device causing the rocker end of the scale (2) of the display instrument is adjacent is. FRIES. BKE & H .0-2ΡΦ FIER G. m.