JPS6251268U

JPS6251268U -

Info

Publication number: JPS6251268U
Application number: JP14290385U
Authority: JP
Priority date: 1985-09-20
Filing date: 1985-09-20
Publication date: 1987-03-30

Description

[Brief explanation of drawings]

第１〜４図はこの考案の実施例を示すもので、
第１図は含水率測定装置の平面図、第２図は測定
回路のブロツク図、第３図は補償部の制御作用を
説明するフローチヤート、第４図は補償値と時間
との関係を示すグラフ図である。第５図はアナロ
グ回路からの出力と時間との関係を示すグラフ図
である。図において、１４は電源スイツチ、１６はハン
ドル、２０は測定スイツチ、３０は電圧変換回路
、３６は電極、３８は抵抗／電圧変換回路、４２
はＡ／Ｄ変換回路、４４はアナログ回路部、４６
は制御回路部、４８は表示ドライバ回路、そして
５０はスイツチ回路である。 Figures 1 to 4 show examples of this invention.
Fig. 1 is a plan view of the water content measuring device, Fig. 2 is a block diagram of the measuring circuit, Fig. 3 is a flowchart explaining the control action of the compensator, and Fig. 4 shows the relationship between compensation value and time. It is a graph diagram. FIG. 5 is a graph showing the relationship between the output from the analog circuit and time. In the figure, 14 is a power switch, 16 is a handle, 20 is a measurement switch, 30 is a voltage conversion circuit, 36 is an electrode, 38 is a resistance/voltage conversion circuit, 42
is an A/D conversion circuit, 44 is an analog circuit section, 46
48 is a display driver circuit, and 50 is a switch circuit.

Claims

[Scope of utility model registration request]

In the measurement circuit of a moisture content measuring device that crushes and clamps a sample grain between a pair of electrodes and measures the moisture content of the grain based on the electrical resistance of the sample grain, an electric current that corresponds to a change in electrical resistance when the sample grain is crushed is used. An analog circuit section for outputting a signal is provided, a measurement switch is provided for supplying and disconnecting a power supply voltage to the analog circuit section, a conversion circuit section is provided for inputting the electric signal of the analog circuit section and converting it into a moisture content, A control circuit section for storing the moisture content is provided in communication with the analog circuit section, a circuit section for inputting and displaying the moisture content is provided in communication with the control circuit section, and a 1. A measuring circuit for a moisture content device, comprising: a compensator that corrects the moisture content using a compensation value calculated from a difference between a power supply time and a non-power supply time.