JPH049774A - Circuit mainly consisting of coherer and discharge tube - Google Patents

Abstract

PURPOSE:To enable a coherer and discharge tube to be operated at DC, 50 or 60 cycle AC, or a high-frequency current etc. by connecting a current collecting part at one electrode side of the coherer and discharge tube and a display device, a working power supply and a resistor of the discharge tube in series. CONSTITUTION:One electrode of the coherer 1 is connected to one electrode of the discharge tube 3 and a current-collecting part 2, the other electrode of the coherer is grounded and connected with an electrode 5, a resistor 4, and a display circuit 6 and the other electrode of the discharge tube 3 in series. Then, when electrification, induction, and small amount of current etc. of static electricity are collected to the current-collecting part 2, current flows to the coherer 1 and at the same time the cohere 1 is inverted. At this time, the discharge tube 3 was in shortage of current and its internal resistance was large but inversion of the coherer 1 resulted in a low resistance, current of a power supply d5 flows, the discharge tube 3 becomes a low resistance, and the device 6 is operated simultaneously with emission. This circuit has no capacitor and no inductance and operates with DC current such as electrification of static electricity, induction, a small amount of current or 50 or 60 cycle AC or a high-frequency current such as radio wave.

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention provides a coherer and a discharge tube (current-carrying (In some cases, an electric tube whose internal resistance value is very high, and when a current of a certain magnitude or more is applied, the internal resistance value suddenly decreases, and which simultaneously emits light, is referred to as a discharge tube in the specification.)
A circuit mainly consisting of. (Prior Art) As shown in FIG. 2, a conventional circuit mainly consisting of a coherer is used as a detector for a receiver of spark oscillation radio waves. When a radio wave enters the antenna [7], it passes through the primary coil [8] and is grounded.

When the current flows through [9], an induced current is generated in the secondary coil [10], which is then transferred to the capacitor.

[Since the radio wave current passing through 111 has a high frequency, the choke coil [12, 133 becomes a high-in-bee die and this choke coil [12,
13] because it is difficult for radio wave current to flow through coherer [1]
cohera because it flows to

When the internal resistance value of [1] suddenly changes to a low resistance value (this is written as inversion in the specification), the power supply (5
1 (a power source with a voltage lower than the voltage that inverts the coherer, this is simply written as a power source in the specification) is a direct current, so the resistance value of the choke coil [12] is low.

[Choke coil passes through 11th mag [13]
In this circuit, even if direct current or alternating voltage is applied directly to both poles of the coherer [1], these currents will cause the display device [6] to operate through the choke coil, which has a small internal resistance, or the display device. Since the circuit is connected in parallel to the coherer, the voltage applied to the coherer is low and the coherer does not invert. In short, conventional coherer-based circuits work only with radio wave current, and do not work with direct current or alternating current. (Problems to be Solved by the Invention) A conventional coherer-based circuit is used only as a detector of a high-frequency radio wave receiver. An object of the present invention is to provide a coherer circuit in which static electricity charging, induction, direct current such as 41 current, 50 or 60 cycle alternating current, high frequency current, etc. all operate in common. (Means for Solving 1*[)] As shown in FIG.

[2]
Attach. Coherer [1] other pole and discharge tube

[3] A power supply [5) for operating the display device [6] and the discharge tube (3) and the resistor [4] are connected in series with the display device (61) between the other electrode and the resistor [4] if necessary. Connect things. (Function) The internal resistance value before coherer [1] operates is approximately 1013
Ω or more, but when a current of about 1 picoam to Ill and Js flows through this at about 30V or more, the internal resistance value is reversed to about 102Ω. (Inverted Cohera [11
remains inverted for a long time until a shock is applied to release the inversion. When a slight impact is applied to the middle part of this inverted coherer in the direction of its length, the internal resistance value suddenly changes again to the original value of about 1013Ω. (This is written as "release of inversion" in the specification) The internal resistance value of the discharge tube (3) is very high, but when a current of about 1 picoamp or more is passed through it, the internal resistance value suddenly decreases and 1 light is emitted. There are some things. Current collector

[21] When any one of static electricity, induction, minute current, etc. is at, it first flows to the coherer [11] and at the same time the coherer is reversed. At this time, the internal resistance of the discharge tube [3] remains large due to the lack of radio waves. When the coherer [11] reverses, it becomes a low resistance value, so current from the power supply [5] flows through it, and for the first time, the discharge tube [31 becomes a low resistance value and emits light, and at the same time the indicator!

[61 also operates. Since this circuit does not have a capacitor or inductance, it can operate even with static electricity, induction, direct current such as minute current, 50 or 60 cycle alternating current, and high frequency current such as radio waves. (Example) Example 1 A human body charge check device using the circuit of the present invention is shown in FIG. The internal resistance before operation is 5 x 1013 Ω, and the resistor [4] is 1,000 Ω. 02Ω, and the current collector

[2] Yellow #i disc with diameter 1511Il+, inversion release button

[14] etc. are assembled. When in use, the entire external surface is covered with a conductive sheet #[16]
in your hand, and connect the current collector [2] to the grounded conductor (17
]. Embodiment 2 An inspection device that displays when the charged object to be measured (181) has an abnormal charging voltage is shown in FIG. 4. Measurement object

[18] Since the voltage is often high, the current collector (2) is used as the charged object to be measured [18].
] is the current collector depending on the measured voltage.

[21 and the charged object to be measured (1
The connection point [15] between the current collector (18), one pole of the coherer [1], and one pole of the discharge tube [3], the distance between which is determined and fixed between
) is connected with a shield wire (19) (with the shield part grounded).Example 3: When a power transmission line receives induced lightning, lightning, etc., the insulator between the tower and the power transmission line is damaged. To prevent this, arc rings are attached to both ends of the insulator.During large lightning storms, spark discharge occurs between the arc rings, which can melt and damage the arc ring, making it impossible to prevent damage to the insulator. The current collector receives the radio waves generated when a spark discharge occurs between the arc rings in order to operate the display device, but since this cannot be carried out in the field, a pA pseudo-experiment as shown in Figure 5 was conducted. Two metal balls [20, 21] with a diameter of 10 mm are used as the arc ring, and the distance between them is 3 m++.Condenser [22]
1. t15,0OOV High voltage generator (
23), the capacitor [22] is charged with 10,000 µm, and this is applied between the metal balls [20 and 211] to generate a spark discharge between the two metal balls. An experiment was conducted by placing the current collector [2] of the present invention near this. (Effect of the invention) In the human body charge check device of Example 1, assuming that the capacitance of the human body is 100 pP (Hi': +77NF') and the human body charge voltage is 30V, a DC voltage of 30V is applied to a 100pF capacitor.
Charge V and connect this capacitor to the current collector (2) in Figure 3.
Conductive sheet tension part held by hand

[16] When the power switch [241] is closed, the light emitting diode [31] emits light. This is because coherer [1] has been reversed. In this way, the light emitting diode (3) indicated that the human body charging voltage was approximately 30V. In Example 2, an acrylic film was used as the charged measurement object [18] in FIG. 4, and an outer diameter 15II was used as a current collecting part (2) at an interval of the upper part 10C11 which was moving at a speed of 20 m per minute.
Brass nerve 5IIIfi length 900cm is placed in a Bakelite pipe with internal diameter 10+am and length 1,000H, and a shield wire (19) with a core wire at one end of length 20m is attached to the brass part, and it emits light as a coherer [1]. Diode [3]
connection point with

Connect the core wire at the other end of the shield wire to [15]. The charging voltage of the charged measurement object [18] is 2.0
When it becomes OOV, the coherer [11 is reversed and the display device [6
] was activated. Since the distance between the charged object to be measured [18] and the current collector [2] is inversely proportional to the charging voltage, the measured voltage can be determined. The results of the simulation experiment in Example 3 show that two metal balls with a diameter of 10 cm were used as the arc ring.

[2o. 21], the distance between them is 3elI, and the capacitor [
22] 10.0O to 15,0OOV withstand voltage 0.1μF
Connect the OV-charged balls to generate a spark discharge between both metal balls. For both metals 4, place a current collector at a distance of about 5ml from the ball.

[2] Shield wire (19) with metal stick 10mm length 50mm
This is a coherer with a core wire of 25 m in length [1]
The core wire at the other end of the shield wire [19] is connected to the connection point [151] between the coherer [1] and the discharge tube (3), and the wire is connected between the other end of the coherer [1] and the other end of the discharge tube [3]. The display device [61] was activated.

[Brief explanation of drawings]

Fig. 1 is an explanatory circuit diagram according to the present invention, and Fig. 12 is a circuit diagram of a conventional coherer.
Up to the figure, the diagram of the embodiment is as follows: 1 Coherer 9 Earth 2 Current collector 1o Secondary coil 3 Discharge tube 11 Capacitor 4 Resistor
12 Choke coil 5 Power supply 13 Choke coil 6 Display device N 14 Reversal release button 7 Antenna 15 Connection point 8-order coil 16 Conductive sheet tension O which is grounded. Metal ball conductor capacitor Charged object to be measured High voltage generator

Claims (1)

[Claims] One pole of the coherer [1] and one pole of the discharge tube [3] are connected, and a current collector [2] is attached thereto, and the other pole of the coherer [1] is connected directly or indirectly to one pole of the discharge tube [3]. A circuit is connected between the other pole of the coherer [1] and the other pole of the discharge tube [3], connecting the power supply [5], the resistor [4], and if necessary the display device [6]. A circuit mainly consisting of a coherer and a discharge tube, which are connected to each other.