JPH0572001A - Measuring device - Google Patents
Measuring deviceInfo
- Publication number
- JPH0572001A JPH0572001A JP3101045A JP10104591A JPH0572001A JP H0572001 A JPH0572001 A JP H0572001A JP 3101045 A JP3101045 A JP 3101045A JP 10104591 A JP10104591 A JP 10104591A JP H0572001 A JPH0572001 A JP H0572001A
- Authority
- JP
- Japan
- Prior art keywords
- drive
- time
- drive voltage
- control signal
- detectors
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、複数の検出器をそれ
ぞれ時分割に駆動させて計測を行なう計測装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring device which drives a plurality of detectors in a time-division manner to perform measurement.
【０００２】[0002]
【従来の技術】図４は、従来の計測装置の一構成例を示
すブロック図である。この図において、１−１〜１−Ｎ
は、それぞれ所定の検出点に配設される検出器であっ
て、駆動電圧＋Ｖｃｃが供給されることによって検出信
号を発生する。この検出器１は、例えば、図５に示すよ
うに周知の歪ゲージを構成しており、当該歪ゲージによ
るブリッジ接続回路１ａと、この回路１ａの出力信号を
差動増幅するオペアンプ１ｂとから成る。なお、この図
５において、Ｒ1、Ｒ2は曲げや歪に応じて抵抗値が変化
する歪ゲージ、Ｒ3〜Ｒ5はそれぞれ調整抵抗である。2. Description of the Related Art FIG. 4 is a block diagram showing a configuration example of a conventional measuring device. In this figure, 1-1 to 1-N
Are detectors respectively arranged at predetermined detection points, and generate a detection signal by being supplied with the drive voltage + Vcc. The detector 1 constitutes, for example, a well-known strain gauge as shown in FIG. 5, and comprises a bridge connection circuit 1a based on the strain gauge and an operational amplifier 1b which differentially amplifies an output signal of the circuit 1a. .. In FIG. 5, R 1 and R 2 are strain gauges whose resistance values change according to bending and strain, and R 3 to R 5 are adjustment resistors.
【０００３】こうした各検出器１−１〜１−Ｎから出力
される検出信号は、処理回路２に入力される。処理回路
２は、該検出信号をディジタルデータに変換するＡ／Ｄ
変換器と、このＡ／Ｄ変換器の出力を工学値に変換する
マイクロプロセッサ等から構成されている。このような
構成によれば、各検出器１−１〜１−Ｎに駆動電圧が供
給され、これにより発生する検出信号が処理回路４によ
って取り込まれる。そして、処理回路２は、各検出信号
をＡ／Ｄ変換した後、それぞれ工学値に変換し、これを
各検出点における計測信号として出力する。The detection signals output from each of the detectors 1-1 to 1-N are input to the processing circuit 2. The processing circuit 2 is an A / D that converts the detection signal into digital data.
It is composed of a converter and a microprocessor for converting the output of the A / D converter into an engineering value. With such a configuration, the drive voltage is supplied to each of the detectors 1-1 to 1-N, and the detection signal generated thereby is taken in by the processing circuit 4. Then, the processing circuit 2 A / D-converts each detection signal, converts each to an engineering value, and outputs this as a measurement signal at each detection point.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上述した従
来の計測装置にあっては、各検出点に配設される検出器
１−１〜１−Ｎから検出信号を発生させるために、それ
ぞれに対して常時、駆動電圧を供給しなければならな
い。このため、駆動する検出器の数に比例して消費電力
が増し、特に、多数の検出器をバッテリで駆動する際に
は、動作時間が限られたものになってしまう。さらに、
各検出器においては、測定状態にない時にも駆動電圧が
印加されるので、検出器自身が発熱し、これにより熱ド
リフトが生じるといった問題もある。この発明は上述し
た事情に鑑みてなされたもので、駆動する検出器の数が
多くても消費電力を押え、しかも検出器自身の発熱によ
る熱ドリフトを起こすことがない計測装置を提供するこ
とを目的としている。By the way, in the above-mentioned conventional measuring apparatus, in order to generate the detection signals from the detectors 1-1 to 1-N arranged at the respective detection points, they are respectively provided. On the other hand, the drive voltage must be constantly supplied. For this reason, power consumption increases in proportion to the number of detectors to be driven, and especially when a large number of detectors are driven by a battery, the operation time is limited. further,
Since a drive voltage is applied to each detector even when it is not in the measurement state, there is a problem that the detector itself generates heat, which causes thermal drift. The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide a measuring device that suppresses power consumption even if the number of detectors to be driven is large and does not cause thermal drift due to heat generation of the detectors themselves. Has a purpose.
【０００５】[0005]
【課題を解決するための手段】この発明は、駆動開始を
指示する駆動制御信号を発生する制御手段と、前記駆動
制御信号に応じて複数の検出手段の各々へ順次時分割に
駆動電圧を供給する駆動手段とを具備し、前記制御手段
は、前記駆動手段が駆動電圧を供給した時点から所定時
間経過後に、該駆動電圧を受けた検出手段が発生する検
出信号を取り込むことを特徴としている。SUMMARY OF THE INVENTION According to the present invention, control means for generating a drive control signal for instructing drive start and drive voltage are sequentially supplied to each of a plurality of detecting means in a time division manner in response to the drive control signal. The control means fetches a detection signal generated by the detection means that has received the drive voltage after a predetermined time has elapsed from the time when the drive voltage was supplied by the drive means.
【０００６】[0006]
【作用】上記構成によれば、制御手段が駆動開始を指示
する駆動制御信号を発生し、駆動手段が前記駆動制御信
号に応じて複数の検出手段の各々へ順次時分割に駆動電
圧を供給する。そして、制御手段は、駆動手段が駆動電
圧を供給した時点から所定時間経過後に、該駆動電圧を
受けた検出手段が発生する検出信号を取り込む。この結
果、駆動する検出器の数が多くても消費電力を押え、し
かも検出器自身の発熱による熱ドリフトの発生も押えら
れる。According to the above structure, the control means generates the drive control signal for instructing the drive start, and the drive means sequentially supplies the drive voltage to each of the plurality of detection means in a time division manner in response to the drive control signal. .. Then, the control means fetches the detection signal generated by the detection means which has received the drive voltage after a predetermined time has elapsed from the time when the drive means supplied the drive voltage. As a result, the power consumption can be suppressed even if the number of detectors to be driven is large, and the occurrence of thermal drift due to heat generation of the detectors can be suppressed.
【０００７】[0007]
【実施例】以下、図面を参照してこの発明の実施例につ
いて説明する。図１はこの発明の一実施例による計測装
置の構成を示すブロック図である。この図において、図
４に示した各部と対応する部分には同一の番号を付し、
その説明を省略する。また、この図が図４に示したもの
と異なる点は、処理回路２が後述する時分割ドライブ回
路３に駆動制御信号を供給し、該ドライブ回路３がこの
駆動制御信号Ｓｄに基づいて各検出器１−１〜１−Ｎに
対して時分割に駆動電圧を供給するようにしたことにあ
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a measuring device according to an embodiment of the present invention. In this figure, the parts corresponding to the respective parts shown in FIG.
The description is omitted. Further, the difference of this drawing from that shown in FIG. 4 is that the processing circuit 2 supplies a drive control signal to a time-division drive circuit 3 described later, and the drive circuit 3 detects each detection based on the drive control signal Sd. The driving voltage is supplied to the units 1-1 to 1-N in a time division manner.
【０００８】すなわち、図１において、処理回路２はＣ
ＰＵ、ＲＯＭおよびＲＡＭから構成される周知のマイク
ロプロセッサを具備しており、該マイクロプロセッサの
制御の下に所定の周期毎に駆動制御信号Ｓｄを発生す
る。一方、時分割ドライブ回路３は、この駆動制御信号
Ｓｄに応じて各検出器１−１〜１−Ｎに対して順次、時
分割にドライブ電圧１〜Ｎを供給するようになってい
る。なお、この時分割ドライブ回路３は、ドライブ電圧
１〜Ｎを発生する毎にその旨を表す制御信号を処理回路
２へ出力する。これにより、処理回路２は前記制御信号
に同期した所定のタイミングで計測するように構成され
ている。That is, in FIG. 1, the processing circuit 2 is C
A well-known microprocessor including a PU, a ROM and a RAM is provided, and the drive control signal Sd is generated at a predetermined cycle under the control of the microprocessor. On the other hand, the time division drive circuit 3 sequentially supplies the drive voltages 1 to N to the respective detectors 1-1 to 1-N in a time division manner according to the drive control signal Sd. The time division drive circuit 3 outputs a control signal to that effect to the processing circuit 2 each time the drive voltages 1 to N are generated. As a result, the processing circuit 2 is configured to measure at a predetermined timing synchronized with the control signal.
【０００９】このような計測装置において、処理回路２
が駆動制御信号Ｓｄを発生すると、まず、時分割ドライ
ブ回路３は、図２に示すように、所定パルス幅のドライ
ブ電圧１を検出器１−１にのみ供給する。そして、処理
回路２は、このドライブ電圧１の発生に同期し、所定の
タイミングで検出器１−１の検出信号を取込む。次い
で、取込まれた検出信号は、前述したようにＡ／Ｄ変換
が施された後、工学値に変換されて計測信号として出力
される。ここで、ドライブ電圧１が発生してから計測が
なされるまでに時間Δｔを設けたのは、検出器にドライ
ブ電圧を供給してから該検出器の動作が安定するまでの
立上がり特性を考慮しているためである。次いで、時分
割ドライブ回路３は、処理回路２が計測を開始した時点
にドライブ電圧２を検出器１−２に供給する。この後、
上述したように処理回路２が時間Δｔを経て検出器１−
２の検出信号を計測する。そして、以後同様な動作を繰
返すことで検出器１−Ｎの検出信号が計測され、駆動制
御信号Ｓｄによって規定される１計測周期が完了する。In such a measuring device, the processing circuit 2
When the drive control signal Sd is generated, the time division drive circuit 3 first supplies the drive voltage 1 having a predetermined pulse width only to the detector 1-1 as shown in FIG. Then, the processing circuit 2 takes in the detection signal of the detector 1-1 at a predetermined timing in synchronization with the generation of the drive voltage 1. Next, the taken-in detection signal is subjected to A / D conversion as described above, then converted into an engineering value and output as a measurement signal. Here, the time Δt is provided from the generation of the drive voltage 1 to the measurement, because the rise characteristic from the supply of the drive voltage to the detector to the stable operation of the detector is taken into consideration. This is because Next, the time division drive circuit 3 supplies the drive voltage 2 to the detector 1-2 at the time when the processing circuit 2 starts the measurement. After this,
As described above, the processing circuit 2 passes the time Δt and the detector 1-
The detection signal of 2 is measured. Then, by repeating the same operation thereafter, the detection signal of the detector 1-N is measured, and one measurement cycle defined by the drive control signal Sd is completed.
【００１０】このように、上記実施例によれば、時分割
ドライブ回路３が駆動制御信号Ｓｄに応じて各検出器１
−１〜１−Ｎに順次ドライブ電圧１〜Ｎを供給するの
で、駆動すべき検出器の数が多くても消費電力が押えら
れ、しかも検出器１に対して常時、ドライブ電圧を印加
しなくなるため、熱ドリフトも発生することがない。As described above, according to the above-described embodiment, the time division drive circuit 3 causes each detector 1 to respond to the drive control signal Sd.
Since the drive voltages 1 to N are sequentially supplied to −1 to 1 to N, the power consumption is suppressed even if the number of detectors to be driven is large, and the drive voltage is not always applied to the detector 1. Therefore, thermal drift does not occur.
【００１１】次に、図３を参照し、この発明の変形例に
ついて説明する。この図に示す変形例が図１に示したも
のと異なる点は、偶数番目の検出器１−２Ｎと、奇数番
目の検出器１−（２Ｎ−１）とにグループ分けを行い、
各グループに時分割ドライブ回路３−１〜３−２を設け
たことにある。このような構成によれば、偶数番目の検
出器１−２ｎと、奇数番目の検出器１−（２ｎ−１）と
に交互にドライブ電圧が印加されて計測が行われる。そ
して、こうした構成とすると、各グループの出力ライン
を一本化することができるので、検出器の数が多くなっ
ても配線の簡単化を図ることが可能になる。Next, a modification of the present invention will be described with reference to FIG. The modification shown in this figure is different from that shown in FIG. 1 in that even-numbered detectors 1-2N and odd-numbered detectors 1- (2N-1) are grouped,
The time-division drive circuits 3-1 to 3-2 are provided in each group. With such a configuration, the drive voltage is alternately applied to the even-numbered detectors 1-2n and the odd-numbered detectors 1- (2n-1) to perform measurement. With such a configuration, the output lines of each group can be unified, so that the wiring can be simplified even if the number of detectors increases.
【００１２】なお、この変形例では、偶数番目の検出器
１−２ｎと、奇数番目の検出器１−（２ｎ−１）との２
グループに分けたが、これに限定されることなく複数の
グループに分け、各グループ毎に時分割ドライブ回路３
を具備するようにしても良い。In this modification, the even-numbered detector 1-2n and the odd-numbered detector 1- (2n-1) are two.
Although it is divided into groups, the time division drive circuit 3 is divided into a plurality of groups without being limited to this.
May be provided.
【００１３】[0013]
【発明の効果】以上説明したように、この発明によれ
ば、制御手段が駆動開始を指示する駆動制御信号を発生
し、駆動手段が前記駆動制御信号に応じて複数の検出手
段の各々へ順次時分割に駆動電圧を供給する。そして、
制御手段は、前記駆動手段が駆動電圧を供給した時点か
ら所定時間経過後に、該駆動電圧を受けた検出手段が発
生する検出信号を取り込むので、駆動する検出器の数が
多くても消費電力を押え、しかも検出器自身の発熱によ
る熱ドリフトを起こすことがなくなる。As described above, according to the present invention, the control means generates the drive control signal for instructing the drive start, and the drive means sequentially outputs to each of the plurality of detection means in accordance with the drive control signal. The drive voltage is supplied in a time division manner. And
Since the control means fetches the detection signal generated by the detection means that has received the drive voltage after a predetermined time has elapsed from the time when the drive means supplied the drive voltage, power consumption is reduced even if the number of detectors to be driven is large. In addition, there is no holding down and no thermal drift due to heat generation of the detector itself.
【図１】 この発明による一実施例の構成を示すブロッ
ク図。FIG. 1 is a block diagram showing the configuration of an embodiment according to the present invention.
【図２】 同実施例の動作を説明するためのタイムチャ
ート。FIG. 2 is a time chart for explaining the operation of the embodiment.
【図３】 この発明の変形例の構成を示すブロック図。FIG. 3 is a block diagram showing a configuration of a modified example of the present invention.
【図４】 従来例を説明するための図。FIG. 4 is a diagram for explaining a conventional example.
【図５】 従来例を説明するための図。FIG. 5 is a diagram for explaining a conventional example.
１−１〜１−Ｎ…検出器（検出手段）、２…処理回路
（制御手段）、３…時分割ドライブ回路（駆動手段）。1-1 to 1-N ... Detector (detection means), 2 ... Processing circuit (control means), 3 ... Time division drive circuit (drive means).
Claims (1)
する制御手段と、 前記駆動制御信号に応じて複数の検出手段の各々へ順次
時分割に駆動電圧を供給する駆動手段とを具備し、 前記制御手段は、前記駆動手段が駆動電圧を供給した時
点から所定時間経過後に、該駆動電圧を受けた検出手段
が発生する検出信号を取り込むことを特徴とする計測装
置。1. A control means for generating a drive control signal for instructing the start of drive, and a drive means for sequentially supplying a drive voltage to each of a plurality of detection means in time division in accordance with the drive control signal, The measuring device, wherein the control means fetches a detection signal generated by the detection means that has received the drive voltage after a predetermined time has elapsed from the time when the drive means supplied the drive voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3101045A JPH0572001A (en) | 1991-05-02 | 1991-05-02 | Measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3101045A JPH0572001A (en) | 1991-05-02 | 1991-05-02 | Measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0572001A true JPH0572001A (en) | 1993-03-23 |
Family
ID=14290165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3101045A Withdrawn JPH0572001A (en) | 1991-05-02 | 1991-05-02 | Measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0572001A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007101270A (en) * | 2005-09-30 | 2007-04-19 | Yazaki Corp | Current meter and flow meter |
| JP2012042261A (en) * | 2010-08-17 | 2012-03-01 | Seiko Epson Corp | Integrated circuit device and electronic device |
-
1991
- 1991-05-02 JP JP3101045A patent/JPH0572001A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007101270A (en) * | 2005-09-30 | 2007-04-19 | Yazaki Corp | Current meter and flow meter |
| JP4571898B2 (en) * | 2005-09-30 | 2010-10-27 | 矢崎総業株式会社 | Current meter and flow meter |
| JP2012042261A (en) * | 2010-08-17 | 2012-03-01 | Seiko Epson Corp | Integrated circuit device and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5822369A (en) | Sensor device | |
| JP2007511190A (en) | Method for detecting rotor position of synchronous motor | |
| CN104101369A (en) | Position detection apparatus | |
| JPH0572001A (en) | Measuring device | |
| US9488530B2 (en) | Time-domain temperature sensing system with a digital output and method thereof | |
| US20040073860A1 (en) | Method and device for testing bit errors | |
| JPH0769996B2 (en) | Simultaneous measurement data transmission method | |
| JPS6255580A (en) | Reception level variation compensating step track tracking system | |
| JPH11109005A (en) | Battery voltage measuring apparatus | |
| JPS6455605A (en) | State output device for control system | |
| KR0170688B1 (en) | Ac servo motor serial communicating signal converting method and apparatus thereof | |
| JP2645197B2 (en) | Flow measurement device | |
| SU1226395A2 (en) | Device for measuring signal delay time in photodetector | |
| JPH10268939A (en) | Dc motor position control circuit and its method | |
| JPS60155476A (en) | Thermal recorder | |
| JP4219434B2 (en) | Measurement data recording device | |
| KR950015145A (en) | Scan Line Error Measuring Device of Laser Scan Unit | |
| SU1560985A1 (en) | Device for measuring mean temperature | |
| SU1628050A1 (en) | Ac stabilizer | |
| SU451224A1 (en) | Device for detecting failures of angular position sensors | |
| JPS6184519A (en) | Position signal detecting device | |
| JPH01250723A (en) | Encoder | |
| JPH04185113A (en) | Testing instrument for a/d converter circuit | |
| JPS6395597A (en) | Transmission of measuring data | |
| JP2004510987A (en) | RF power measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980806 |