(function () {
function textOf(el) {
return (el && el.textContent || "").replace(/\s+/g, " ").trim();
}
function resolveItemUrl() {
var match = window.location.search.match(/[?&]item=(\d+)/);
if (!match) {
return null;
}
return window.location.origin + "/a-" + match[1] + "/";
}
function loadAccordion() {
var url = resolveItemUrl();
if (!url) {
return Promise.resolve(null);
}
return new Promise(function (resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open("GET", url, true);
xhr.onload = function () {
if (xhr.status < 200 || xhr.status >= 400) {
reject(new Error("item page " + xhr.status));
return;
}
var doc = new DOMParser().parseFromString(xhr.responseText, "text/html");
resolve(doc.querySelector(".phywe-item-accordion"));
};
xhr.onerror = function () {
reject(new Error("item page network error"));
};
xhr.send();
});
}
function parseItemBlocks(scope, withQuantity) {
if (!scope) {
return [];
}
var rows = scope.querySelectorAll(".itemslist .row.itemblocks");
var items = [];
for (var i = 0; i < rows.length; i++) {
var cols = rows[i].children;
if (!cols.length) {
continue;
}
var nameLink = cols[0].querySelector("a");
var numberLink = cols[1] ? cols[1].querySelector("a") : null;
var item = {
name: textOf(nameLink || cols[0]),
mappedTo: textOf(numberLink)
};
if (withQuantity && cols[2]) {
var qty = parseInt(textOf(cols[2]).replace(/[^\d]/g, ""), 10);
item.quantity = isNaN(qty) ? textOf(cols[2]) : String(qty);
}
if (item.name) {
items.push(item);
}
}
return items;
}
function fillTable(tableId, items, withQuantity) {
var table = document.getElementById(tableId);
if (!table || !items.length) {
return;
}
var tbody = table.querySelector("tbody");
for (var i = 0; i < items.length; i++) {
var tr = document.createElement("tr");
var nameTd = document.createElement("td");
nameTd.style.width = "80%";
nameTd.textContent = items[i].name;
tr.appendChild(nameTd);
var numberTd = document.createElement("td");
numberTd.textContent = items[i].mappedTo;
tr.appendChild(numberTd);
if (withQuantity) {
var qtyTd = document.createElement("td");
qtyTd.textContent = items[i].quantity || "";
tr.appendChild(qtyTd);
}
tbody.appendChild(tr);
}
var wrapper = table.parentElement;
while (wrapper && wrapper.className.indexOf("printtablediv") === -1) {
wrapper = wrapper.parentElement;
}
if (wrapper) {
wrapper.style.display = "";
}
}
function stepTitle(stepEl) {
if (!stepEl) {
return "";
}
var titleEl = stepEl.querySelector(".card-header button div") || stepEl.querySelector(".card-header button");
return textOf(titleEl);
}
function setHeadline(tableId, title) {
var headline = document.querySelector("#" + tableId + " .printtableheadline");
if (headline && title) {
headline.textContent = title;
}
}
function parseMedia(scope) {
if (!scope) {
return [];
}
var rows = scope.querySelectorAll(".itemslist .row.itemblocks");
var items = [];
for (var i = 0; i < rows.length; i++) {
var cols = rows[i].children;
if (!cols.length) {
continue;
}
var nameLink = cols[0].querySelector("a");
var fileLink = cols[1] ? cols[1].querySelector("a") : null;
var item = {
name: textOf(nameLink || cols[0]),
mappedTo: textOf(fileLink || cols[1]),
quantity: cols[2] ? textOf(cols[2]) : ""
};
if (item.name) {
items.push(item);
}
}
return items;
}
function fillFromAccordion(accordion) {
if (!accordion) {
return;
}
var versucheStep = accordion.querySelector('[data-step="versuche"]');
var versuche = parseItemBlocks(versucheStep, false);
setHeadline("print-versuche", stepTitle(versucheStep));
fillTable("print-versuche", versuche, false);
var lieferumfangStep = accordion.querySelector('[data-step="lieferumfang"]');
var lieferumfang = parseItemBlocks(lieferumfangStep, true);
fillTable("print-lieferumfang", lieferumfang, true);
var zubehoer = accordion.querySelector('[data-step="zubehoer"]');
var sections = zubehoer ? zubehoer.querySelectorAll(".card-body") : [];
var notwendig = [];
var empfohlen = [];
for (var i = 0; i < sections.length; i++) {
var items = parseItemBlocks(sections[i], false);
if (sections[i].querySelector(".text-red, .icon-warning-black")) {
notwendig = items;
} else if (sections[i].querySelector(".text-green, .icon-Mehrwert_black")) {
empfohlen = items;
}
}
fillTable("print-zubehoer-notwendig", notwendig, false);
fillTable("print-zubehoer-empfohlen", empfohlen, false);
var mediaStep = accordion.querySelector('[data-step="media"]');
var media = parseMedia(mediaStep);
setHeadline("print-media", stepTitle(mediaStep));
fillTable("print-media", media, true);
}
function start() {
var itemUrl = resolveItemUrl();
if (!itemUrl) {
setTimeout(function () {
window.print();
}, 2000);
return;
}
loadAccordion()
.then(function (accordion) {
fillFromAccordion(accordion);
})
.catch(function (err) {
if (window.console && console.warn) {
console.warn("Accordion konnte nicht geladen werden:", resolveItemUrl(), err);
}
})
.then(function () {
setTimeout(function () {
window.print();
}, 500);
});
}
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", start);
} else {
start();
}
})();
Datenblatt Der PTC-Widerstand mit Cobra SMARTsenseArtikel-Nr.: P1377769 Prinzip Ein Kaltleiter, PTC-Widerstand oder PTC-Thermistor (englisch Positive Temperature Coefficient Thermistor) ist ein temperaturabhängiger Widerstand, welcher zu der Gruppe der Thermistoren zählt. Er weist als wesentliche Eigenschaft einen positiven Temperaturkoeffizienten auf und leitet bei tiefen Temperaturen den elektrischen Strom besser als bei hohen Temperaturen. Aufgaben
Lernziele Die Lernenden verstehen, dass der Widerstand eines PTC-Widerstands mit steigender Temperatur zunimmt. Sie lernen den Unterschied zwischen Eigen- und Fremderwärmung kennen und vertiefen ihr Verständnis für die Temperaturabhängigkeit des PTC-Widerstands. Vorteile
|