JPS61185155U

JPS61185155U -

Info

Publication number: JPS61185155U
Application number: JP6731185U
Authority: JP
Priority date: 1985-05-07
Filing date: 1985-05-07
Publication date: 1986-11-18

Description

[Brief explanation of the drawing]

第１図は本考案カリキユレータの一実施例を示
す平面図、第２図はその縦断側面図、第３図は本
考案カリキユレータにおける基盤の拡大図、第４
図は本考案カリキユレータにおける可動円盤の拡
大図、第５図は本考案カリキユレータにおける小
円盤の拡大図である。１……基盤、２……被曝線量値Ｅの目盛、３…
…被曝線量率値Ｒの目盛、５……回動円盤、７…
…作業時間Ｔの目盛、１０……溝孔、１１……換
算係数Ｆの目盛、１７……主指標線。 Fig. 1 is a plan view showing an embodiment of the inventive calculator, Fig. 2 is a vertical side view thereof, Fig. 3 is an enlarged view of the base of the inventive calculator, and Fig. 4 is a plan view showing an embodiment of the inventive calculator.
The figure is an enlarged view of the movable disk in the calculator of the present invention, and FIG. 5 is an enlarged view of the small disk in the calculator of the present invention. 1...Base, 2...Scale of exposure dose value E, 3...
...Scale of exposure dose rate value R, 5...Rotating disk, 7...
...Scale of working time T, 10...Slot hole, 11...Scale of conversion factor F, 17...Main index line.

Claims

[Scope of Claim for Utility Model Registration] (1) A scale indicating the radiation exposure dose is placed on the outer circle of the concentric circles on the plastic base surface, and an exposure dose rate scale is placed on the inner circle; A movable disk supported by the central axis is provided, and a scale indicating the working time is placed on the outer periphery of the disk, and an arc-shaped slot is opened at a position corresponding to the placement position of the exposure dose rate scale. A conversion constant scale is placed on the edge of the slot, and a transparent indicator plate is attached that reaches from the spindle position to the comparison area between the exposure dose scale and the working time scale, and the distance between each scale by the indicator plate is A calculator characterized in that it reads a corresponding numerical scale that satisfies the following relationship: exposure dose rate = exposure dose work time = conversion constant/air dose rate. (2) Another small disk having an outer circumferential edge that coincides with the innermost center circle of the movable disk is rotatably provided around the center axis, and clock scales for addition and subtraction are provided on the innermost center circle and the outer circumferential circle. Calculator according to claim (1) of the utility model registration claims attached thereto. (3) The scope of the utility model registration claim (1), in which the small disk is made of a transparent plate, and a transparent auxiliary index plate is attached to the small disk, reaching from a part to the outer edge of the movable disk. Calculator described. (4) While forming small holes at the hour value display positions of the time scale on the innermost center circle of the movable disk, turning the small holes of the base so that natural numbers are sequentially displayed in these small holes. The calculator according to claim (1) of the utility model registration claim, in which a numerical value is attached to the area. (5) The calculator according to claim (1) of the registered utility model, wherein a clip mechanism for clipping is provided on the back surface of the base.