JPS5921506B2 - Voltage/current generator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a voltage/current generator that generates voltage or current according to a set display value, and for this purpose, provides a voltage/current generator having a function of dividing and outputting a set value. It's about doing.

FIG. 1 is a configuration explanatory diagram of an embodiment of a setting display section of a voltage/current generator according to the present invention.

In Fig. 1, A1 and A2 are dials for displaying set values;
B1 to B3 are setting display values that display the values set with dials A1 to A3, Cl and C2 are output terminals, Cs is guard terminal, D is range setting dial, F is output on/off switch, G is a power on/off switch, and H is a polarity display switch. The electrical block diagram of this device is as shown in Figure 2, with dial A for displaying set values.
The information set in ~A3 and the information set in D with the range setting dial are input, and the calculation storage unit I stores this input information and performs various calculations based on the input information.
and a setting display section J that displays the output of the calculation storage section I as a set value; and a setting display section J that receives the output of the calculation storage section I and generates a voltage or current according to the set value displayed on the setting display section J; It consists of an output section o from which the output is taken out. The setting display value on the output display section J in Fig. 2 is B1 to B1 in Fig. 1.
The voltage or current indicated by B4 and obtained from the output part o is taken out from the output terminals Cl and C2 in FIG. In addition, on the range setting dial D, PR, CA, CRC, IC, and CC indicate the type of thermocouple, and when setting the temperature, the voltage corresponding to the type of thermocouple and its set temperature is output to the output terminals Cl and C2. It is becoming more and more available. A set value division output mechanism is added according to the present invention, and a double dial type rotor 9 switch is used for this.

In the setting value division output mechanism K, K1 is a first setting dial, and an index K1 is integrally formed on this setting dial. K, is a second setting dial, and an index K, , is attached to this dial. Note that K,2 indicates one end of this index K,l. Dial K
1 and K rotate clockwise or counterclockwise independently of each other, and inside this device there is a rotary switch (not shown) that rotates independently of dials K1 and K.
is provided. K, is an integer from 0 to 15 graduated around the dial Kl,K. Rotate the dial K1 to set the integer value indicated by the index KIl to m
Then, the signal obtained from the contact point of the rotary switch driven by this dial K, corresponds to the value m expressed by a code, and this code signal is stored in the calculation storage section shown in Fig. 2. 1 and is stored. Similarly, if the dial K, is rotated and the integer indicated by the index K, , is n, then the signal obtained from the contacts of the rotary switch driven by this dial K, is the code n. Once the code signal corresponds to the expressed value, it is stored in the arithmetic storage unit 1. The calculation storage unit I stores the input N. ! Calculate (n/m) with l:m, and multiply this n/m value by the value displayed in setting display values B1 to B4 set with setting dials A and ~A3, as shown in the formula below. Perform calculations. Setting display value Xn/m
(1) Output section 0 generates the voltage or current shown in equation (1), and this generated voltage or current is output at output terminal C
It is extracted from l,C,.

That is, from the output terminals C,,C, the set display values B1~
A voltage or current having a value obtained by dividing B4 into n/m can be extracted. The values of the integers m and n can be set arbitrarily by dials Kl, K,. Note that the dial K, does not have m=O, and the dials K, and K, are provided with a mechanism that prevents n from becoming larger than m. L is a lamp, and this lamp is lit only when m\n to indicate that the output voltage or current is different from the set display values B1 to B4 (n/m times the set display value). However, in the above-described embodiment, the setting value division output mechanism K is constructed using an arm as the dial K, but this K may be a knob in the same way as the dial K, or K1 and K may be used as a knob. Although a dual dial rotary switch is used in this embodiment, K1 and K may be independent dial rotary switches.

Further, in the above embodiment, the case where the set display value is divided into n/m was explained, but for example, as shown in FIG. 1, a digital switch P is provided and the lower limit value is set by this digital switch. For example, the distance between the setting display value, which is the upper limit value, and the lower limit value set with the digital switch is n/m.
It can be divided into parts and output. In addition, in the above embodiment, the dials K and K were mechanically processed to prevent n from becoming larger than m, but if n becomes larger than m, the internal structure is changed so that n/m=1. The calculation may be performed in the calculation storage section 1, and by making n>m possible and obtaining an output of +α% when n>m, a wider range of applications can be expected than in case 1. This type of voltage/current generator has various uses, one of which is, for example, for calibrating meters or measuring instruments.

When used as a calibration device in this way, the full scale value of the meter or measuring device is set to the set display value B1 to B4, and the set display value can be divided by a simple operation to calibrate the intermediate point. It would be convenient if the output could be obtained. In the present invention, an output can be obtained by dividing the set display value into arbitrary values determined by n/m, and the dividing operation can be performed using the dials K and K, without requiring mental calculation or skill on the part of the user. The mechanism can be used with simple operations, making it extremely convenient to use.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the configuration of a setting display section of the voltage/current generating device according to the present invention, and FIG. 2 is an electrical block diagram of the main part of the device shown in FIG. A1-A3...setting display dial, BI-B4...
・Setting display value, K-...Setting value division output mechanism, K,
... Dial for setting the integer m, K2... Dial for setting the integer n, I... Arithmetic storage section, O... Output section.

Claims (1)

[Claims] 1. A device that generates a voltage or current according to a set display value, comprising a dial for setting an integer m, a dial for setting an integer n, and an arithmetic storage section for inputting the set integers m and n. In this calculation storage section, (setting display value x n/m
) and generates a voltage or current according to the result of the calculation. 2. The voltage/current generator according to claim 1, further comprising a lamp that lights up when m≠n. 3. The voltage/current generator according to claim 1, wherein the dial for setting the integer m and the dial for setting the integer n are double dials. 4. The voltage/current generator according to claim 1, wherein the dial for setting the integer m and the dial for setting the integer n are separate dials. 5. The voltage according to claim 1, characterized in that it is provided with means for preventing the integer n from becoming larger than the integer m.
Current generator.